WorldWideScience

Sample records for taimamosei kinzokuki fukugo

  1. Fiscal 1999 achievement report on regional consortium research and development project. Regional consortium on energy research in its 3rd year (Research and development of mezoscopic composite phase material based on heat-/wear-resistant metal); 1999 nendo mezoscopic fukuso soshiki seigyo tainetsu taimamosei kinzokuki fukugo zairyo no kenkyu kaihatsu seika hokokusho. 3

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Using an in-situ method, three kinds of Fe-C-Ni-Cr-Mo-Nb-based alloys are developed, whose strength is not less than 800MPa at 1073K. They exhibit, in a high-temperature erosion wear test, a wear resistance which is 2-3 times higher than that of conventional materials. When they are cast, wear-causing graphite precipitation is suppressed thanks to the cast iron coagulating in gaps in the ceramic formed into a net shape. It is also found that in this process the precipitation of cementites etc., which improves on the abrasion and wear characteristics, is accelerated and that the cementites etc. are finely dispersed for improvement on the brake (brake block) characteristics. Tentatively produced brake blocks are tested for performance at the Railway Technical Research Institute. The new materials are found to exhibit a wear resistance which is 2.2 times higher, and a braking capability 1.6 times better, than those of conventional materials. In the case of an Fe-50Cr-4.8C alloy produced by an MA (mechanical alloying) method, {alpha}-Fe is dispersed into M{sub 23}C{sub 6} for a remarkable improvement on the wear-resisting feature. A 10%TiC cermet exhibits a remarkably high wear resistance, that is, a transverse rupture strength of 1270MPa which is higher than that of a cast high-speed steel. (NEDO)

  2. Development of bushing material with higher corrosion and wear resistance; Taishoku taimamosei dogokin bush zairyo no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Kira, T; Yokota, H; Kamiya, S [Taiho Kogyo Co. Ltd., Osaka (Japan)

    1997-10-01

    Recent diesel engines require a higher performance and a longer life. Due to higher cylinder pressure, the operating load and temperature of piston pin bushings become higher. Therefore, higher load capacity, higher wear resistance and higher corrosion resistance are required for piston pin bushings. For this reason, we have studied the effect of components added to copper alloy upon the corrosion resistance and the effect of hard particles dispersed in copper matrix upon the wear resistance and the influence of hard particles on the machinablity of materials. Based on the experimental results, we have developed a new bushing material improving wear and corrosion resistance. 17 figs., 3 tabs.

  3. Survey of advanced composite material technology; Senshin fukugo zairyo gijutsu ni kansuru chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    Results of functions and examples are investigated and described for more than 190 fiber reinforced composite materials. There should be a new viewpoint for even the same material when changing the point to observe it, and new industries will be expected if the viewpoint is adequate. This report has proposed a new concept of `composite functions.` The development works based on non-strength functions which will differentiate the other materials have been stressed. After describing the brief history of the advanced composite materials and significance of composite functions, the present situations and future possibilities of such functions as heat resistance, electricity-electromagnetism, chemicals-proof, adsorption, vibration-proof and resistance, tribology, erosion, sound, adaptability to living bodies and etc. have been examined based on the practical examples. As the future important subjects, adapting possibility of materials having composite functions to marine structures, and possibility of water cleaning system are described. 59 refs., 4 figs., 10 tabs.

  4. Studies on ternary silver sulfides; Fukugo gin ryukabutsu ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-10-31

    Some sulfides containing silver show high ion mobility based on movability of silver, whose application is expected. Studies have been carried out centrally on synthesis of new compounds of ternary silver sulfides by elucidating the relationship among their compositions, structures and properties by means of crystal chemical studies mainly on their phase relationship. A few new compounds have been synthesized, such as the ones having the argyrodite family compound structure including transition metals. The synthesizing process takes a kind of turbulent liquid state structure at elevated temperatures because of movability of silver, but silver is fixed at low temperatures in different sites between skeleton structures made by other atoms. These studies on phase transfer, structures, and silver movability have been based on X-ray diffraction, infrared and Raman spectroscopic measurements, NMR, measurements of electric and thermal characteristics. For the studies related to compositions and structures of ternary metal sulfides which take compound crystalline structure, a structure analyzing method based on multi-dimensional hyperspatial groups was used. This paper reports the summary of the studies in seven chapters, and dwells on the remaining problems and future prospects. 158 refs., 114 figs., 65 tabs.

  5. Layered multinary lanthanum oxide [La-Mo-O]; Sojo rantan fukugo sankabutsu ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-10-31

    Studies have been carried out systematically on properties of oxides including representative transition metal, vanadium, and alkali metals. With respect to Ln2CuO4 (Ln is a rare earth element) being a simple and representative rare earth multinary oxide showing superconductivity, and its related compounds, this paper reports thermal chemistry, superconduction, and making them a superconductor by using soft chemical treatment. The paper also reports centrally on synthesis of new copper oxide superconductors under high pressure, the compositions, structures, superconductive properties of the synthetics, and the relationship between them. It describes phase equilibrium, synthesis, and structures of vanadium multinary oxides being the object of continued studies, and also reports the studies related to structure and phase transfer of NaV6O11 which shows especially interesting properties among the oxides. Studies have also been made on NMR of these compounds and copper oxide superconductors by using magnetic resonance. The paper also describes a method to analyze the structure of quasi-crystal having rotary symmetry which is not allowed in crystals, and has special long-distance order phase. 209 refs., 127 figs., 6 tabs.

  6. Hybrid structure in civil engineering construction.; Doboku bun`ya ni okeru fukugo kozo.

    Energy Technology Data Exchange (ETDEWEB)

    Ikeda, S. [Yokohama National Univ. (Japan). Faculty of Engineering

    1995-03-30

    The structure of steel-concrete hybrid structure which is recently attracting attention is outlined quoting some examples. The effects of steel-concrete hybrid structure are classified according to the characteristics. The Normandie Bridge completed in January this year near the mouth of the Seine River in France is a cable stayed bridge with the world largest span, and it has a hybrid structure of ingeniously combined steel and concrete. The Dole Bridge in France is a hybrid bridge with 7 continuous spans having steel corrugated sheets in the web. Hybrid structure has come to be applied to many structures other than the superstructure works of bridges. The substructures of bridges are applied to immersed tunnels, and the usefulness has come to be recognized widely. The features of hybrid structure can contribute well to the reinforcement of existing structures. In addition, adoption of hybrid structure has been studied as the best method for repairing and reinforcing structures damaged by earthquakes. 8 refs., 6 figs., 1 tab.

  7. Electric charging for preparation of composite particulate materials. Funtai no fukugo zairyoka no tame no kaden sosa

    Energy Technology Data Exchange (ETDEWEB)

    Endo, S [National Institute for Resources and Environment, Tsukuba (Japan)

    1992-11-30

    Explanation was made of problems in interparticulate coagulation mainly in the mixing process of microparticulates which are less than 0.1[mu]m in diameter and about 1[mu]m diameter particulates for the composition in gaseous phase. The utilization of electrostatic interaction was particularly explained together with the recent result of basic experiment. The composition of two-component particulate system in the gaseous phase progresses generally with the Brownian movement and electrostatic interaction of particulates. The interparticulate collision/coagulation rate is evaluated by the coagulation rate function. As for the electric charging operation to make the coagulation more effective, application is made of contact or collision charging and ionic charging, and the latter is further divided into electric field charging and diffusion charging. Experiment was conducted by mixing TiO2 microparticulates which were less than 100nm in diameter and about 1[mu]m diameter PSL (polystyrene latex) particulates for the composition in a mixer. As a result of investigating the coagulation process with a device which could observe the diffused laser beam from the particulates, confirmation could be made of the situation in which the particulate charging effectively contributed to the composition. 20 refs., 10 figs., 2 tabs.

  8. Cooling characteristics of light and heat composite panel; Hikari{center_dot}netsu fukugo paneru no rekyakutokusei

    Energy Technology Data Exchange (ETDEWEB)

    Machida, Satoshi [Science University of Tokyo, Tokyo (Japan)

    1999-07-31

    The Japan Solar Energy Soc. encouraging prize is really thank you this time receiving. Present winning prize is regarded as becoming large self-confidence and further encouragement in advancing the research in future. Duplicates and resources energy depletion problem and environmental problem, etc. will become serious more and more in respect of the twenty-first century just before. It is the threat even in the inside on the increase of the electric power demand by the popularization of air conditioner, etc., and peak shaving of the electric power, etc. must be urgently carried out. We heavily carry out the research of catching, width shot heating and cooling panel constituted by the thermo device module and light and heat composite panel which combined photovoltaic power generation panel in respect of this problem. The development of this panel was solved with the purpose this time, we produce the test equipment experimentally in outdoors, and the data was acquired. As the result, though it is possible to obtain the case in which it operated as air-cooling this panel, and temperature gradient of largest 6 degrees C, and it is the analysis, and it 4s, when it was used in July, It was possible to obtain 4.2 degrees C mean temperature difference. It is the place which has installed improved light and heat composite panel in which we suggested afterwards trial and error at present in the roof. And, it will become also reporting schedule on heating characteristics of this panel in future. Though it consists finally, everybody of Komatsu central laboratory, who received support, when this study was carried out, is asked for the slender face, the attention of thanks is shown. (translated by NEDO)

  9. Mechanical properties of weft knitted fabric reinforced composites. Iamimono kyoka fukugo zairyo no rikigakuteki tokusei ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Wu, W.; Inoda, M.; Kotaki, M.; Goto, A.; Fujita, A.; Hamada, H.; Maekawa, Z. (Kyoto Institute of Technology, Kyoto (Japan). Faculty of Textile Science)

    1993-09-15

    Mechanical properties and failure behavior of weft knitted fabric reinforced composites were studied. Aramid fiber was used as reinforcement (knitting fiber), and epoxy resin as matrix. Different tensions were applied to the weft knitted fabric in a course or wale direction to prepare 5 kinds of fiber reinforced composites with different densities of the knitted fabric, and tensile test pieces were thus provided by cutting each composite in a course or wale direction. As a result, the weft knitted fabric reinforced composite offered a dynamical anisotropy, and the tensile strength of the test pieces was higher in wale direction than course one. Fracture in a course direction occurred at the section with extreme low fiber content, while fracture in a wale direction occurred at a loop interlocking region due to stress concentration. The tensile strength was constant or increased in a course or wale direction by stretching the knitted fabric before molding, respectively. 21 refs., 15 figs., 2 tabs.

  10. Properties of P/M forged Al-Si alloys made by premixed powders. 1. Influences of dispersion and sizes of proeutectic Si on wear resistance; Kongoho ni yotte sakuseishita Al-Si kei shoketsu tanzo gokin no tokusei. 1. Taimamosei ni oyobosu shosho Si no bunsan jotai to ryukei no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Ishijima, Z.; Ichikawa, J.; Sasaki, s.; Shikata, H. [Hitachi Powdered Metals Co. Ltd., Tokyo (Japan)

    1995-10-15

    Influences of dispersion and sizes of proeutectic Si on wear resistance of P/M Al-Si alloys using the prealloying method and premixing method have been investigated. As a result, discretely dispersed proeutectic Si showed excellent wear resistance in compassion with uniformly dispersed one. The cause is considered to be the unclosed Si soft phase which has been preferentially worn away, consequently acting on forming oil grooves and burying worn particles. Further more the existence of the optimum size of proeutectic Si on wear resistance was confirmed. In the case of finer particles, only Al-Si alloy (pin) was warned away substantially. On the other handgun the case of larger particles, both the Al-Si alloy (pin) and the mating malarial (steel disc) were excessively warned away. It is assumed therefore that the finer proeutectic Si particles are not effective as hard particles, on the contrary, larger proeutectic Si particles increase the abrasive wear against the mating material, and those buried into the mating material initiate wear of Al-Si alloy at the same time. 2 refs., 10 figs., 1 tab.

  11. Survey of consolidation for gas turbine re-powering combined WPP (waste power plant) project; Gas turbine repowering haikibutsu fukugo hatsuden system

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    This report describes the survey of gas turbine re-powering combined WPP (or super WPP), which was commercialized by Gunma Prefecture for the first time as an electric power wholesaler in Japan. An outline of the survey is introduced. The system optimization for the commercialization of WPP was studied by considering waste as un-utilized energy. A successful condition and preparation method of the commercialization of a public power plant was also studied, which is a combination of the garbage collection business of a local government and an electric power generation business of a municipal company. For the introduction of the aforementioned system, the problems and supporting methods were studied by making allowance for the profitability of the WPP introduction, because they also need to deliberate it from the economical point of view as electric power companies. Based on the results of foregoing items, commercialization plans, problems encountered from the construction phase through the maintenance and service phase, and the supporting method were arranged. 30 figs., 18 tabs.

  12. Evaluation report on the development of ultra-solid lubricant with cluster diamond; Cluster diamond wo riyoshita kotai junkatsu fukugo zairyo no kaihatsu hyoka hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    The fiscal 1998-2000 results of efforts to develop cluster diamond (CD)-diffused solid lubricant composite materials expected to exhibit excellent lubrication are stated. Since friction greatly affects machine life and energy efficiency, friction reduction is an important task. Very hard and microscopic CD was utilized for the achievement of a friction coefficient of 0.08. A manufacturing technology for molds 10nm or smaller was developed, which enabled the development of a gear not larger than 8mm. The success will enable the operation of micromachines in the absence of lubrication which is impossible at present. A CD-aided functional layer creation technology was also developed. It is expected that the development and practical application of micromechanisms will make rapid progress in the 21st century. Much is expected from the creation, and goods with the achievement applied thereto, of advanced technologies whereinto non-lubrication, functional layer creation, and excellent heat conductivity are incorporated. It is quite significant that, since CD is available in any field as far as light-load low-speed sliding conditions are satisfied, sliding parts will be improved and service life will be prolonged. (NEDO)

  13. SiC/C composite sheets produced from polycarbosilane/resin/bonder mixtures. Polycarbosilane/jushi/bonder kongokei kara sakuseishita SiC/C fukugo sheet

    Energy Technology Data Exchange (ETDEWEB)

    Kawamura, K. (The National Defense Academy, Kanagawa (Japan)); Koga, J.; Iwata, T.; Yamanaka, S.; Ono, M. (Mitsubishi Materials Corp., Saitama (Japan))

    1992-02-01

    In a course of work to improve anti-oxidative property and strength of sheets of carbonic composite materials with resins, and further to produce those sheets in an industrial scale, it was tried to prepare two types of 0.4 {approximately} 0.6 m thickness SiC / C composite sheets by heat treatment of two green sheets polycarbosilane ( PCS ) / fran resin / binder type and PCS / (phenol-formaldehyde resin / binder type ) at temperature of 1200 {approximately} 1400{degree}C in an atmosphere of nitrogen. The sheets thus made were subjected to SEM observation, X-ray diffraction, measurement of density and electric resistance, and to tests on weight loss by heating and on bending. The texture of them were as tight as that of their resin carbon ( glassy carbon ). The structural feature is formation of amorphous SiO{sub 2} as a secondary product, This indicates that Si in PCS reacts with oxygen in resin during pyrolysis. The bending strength and anti-oxidative property depend on the SiC content from PCS and that the mixing effect of SiC on them are feasible when a mixing ratio of PCS / resin is higher than (2/1). 13 ref., 7 figs., 2 tabs.

  14. Japan`s largest composition dam, aiming for harmony with nature. Chubetsu dam; Shizen tono chowa wo mezasu, Nippon ichi no fukugo dam. Chubetsu dam

    Energy Technology Data Exchange (ETDEWEB)

    Mizushima, T. [Hokkaido Development Bureau, Hokkaido Development Agency, Sapporo (Japan)

    1994-08-15

    This paper introduces Chubetsu Dam planned with a large-scale embankment having a river bed width of 600 m. Chubetsu Dam is being constructed with such objectives as flood control of Ishikari River, river flow rate maintenance, drinking water supply, irrigation water supply and power generation. The dam site is a gravel bed having a river bed width of 600 m and a maximum foundation rock thickness of 40 m, requiring evaluations as a dam foundation and discussions of water shielding methods. As a result of discussions at the Chubetsu Dam technical discussion committee, the dam type is decided to be a composition dam consisting of a gravity type concrete dam on the left river side and a central core type fill dam using a part of the gravel bed as the foundation on the right river side. A continuous underground wall system is planned to be used for shielding water in the gravel foundation. In discussing the anti-seismic properties, analyses for bank construction and water filling to derive stress and deformation conditions prior to an earthquake and a time-history response analysis to derive conditional changes during the earthquake are performed. According to the results thereof, evaluations are given on the safety by compounding the stress and the acceleration. In plans to improve the surrounding areas, an area will be provided upstream the reservoir where the water level is kept constant to serve as a bird sanctuary. 7 figs.

  15. Properties of sodium borosilicate glasses/Al2O3 sintered composites containing fluorides. Gan Fukkabutsu hokei san natoriumu garasu to alumina fukugo shoketsutai no bussei

    Energy Technology Data Exchange (ETDEWEB)

    Ryu, Bonggi; Yasui, I [The Univ. of Tokyo, Tokyo (Japan). Inst. of Industrial Science

    1993-06-01

    Glass/alumina sintered composites were synthesized from sodium borosilicate glass powder containing fluorides like AlF3 and NaF3, and Al2O3, and change in material properties was examined. Glass compositions of B2O3 and Na2O greatly affected the crystal phase and material properties. Nephelin crystal phase was extracted by the reaction of Na2O, NaF2, SiO2 and Al2O3 when B/Na<1. Coefficient of thermal expansion increased with the increase of Na/Si ratio. The residual amount of fluorides of sintered materials in nitrogen atmosphere was higher than that of air, and differed with the type of fluoride. The F[sup -] of NaF is bonded with Si of glass network and forms quiet stable glass structure, whereas, F[sup -] of AlF3 reacts with Si[sup 4+] forming SiF4 which is vaporized. Sintering temperature and dielectric constant of sintered materials containing fluoride was lower than the sintered materials without fluorides addition, however, at a sintering temperature range of 100 to 150[degree]C, it was inferred that this was because of the increase in voids due to SiF4 formed in the reaction. 16 refs., 17 figs., 3 tabs.

  16. Achievement report for fiscal 1988 on fundamental technologies for next generation industries. Research and development on composite materials; 1988 nendo fukugo zairyo no kenkyu kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1989-03-01

    With an objective to realize structural materials with light weight, high strength and high rigidity, research has been performed on composite materials. This paper reports the achievements in fiscal 1988. In the development on resin-based composite materials, the results of the evaluation tests on forming plates for epoxy-based resins were analyzed and summarized. On the polyimide-based resins, attempts were made on enhancement of formability of the terminal type and main chain type high heat resistant resins. Evaluations were executed on the resin characteristics by using the impact test, and heat deformation and heat reaction analyzing tests. Furthermore, experimental discussions were given on the heat transfer forming process, prefabrication forming process, microwave forming process, and hybrid forming process. In developing the metallic composite materials, the characteristics evaluation tests and manufacturing technologies were summarized on intermediate materials of the carbon fiber system and silicon carbide system. In addition, researches were performed on trial fabrication and formation of wire preforms. In the forming processes, discussions were given on the press forming process, roll forming process, HIP forming process, and thin wall thickness forming process. (NEDO)

  17. Study on the detached house plan using of a maximum natural energy. Part 1; Shizen energy fukugo riyo no keikaku ni kansuru kenkyu. 1

    Energy Technology Data Exchange (ETDEWEB)

    Wada, I; Mino, M; Miyata, T; Okawa, M [Nihon University, Tokyo (Japan)

    1996-10-27

    The geographical position or environment is set on the assumption that the natural energy of a detached house is used in a hybrid state. Moreover, the energy consumption of the house and the natural energy supply obtained from the geographical position were compared and investigated. As a result, the energy consumption is 10,617 kWh, and the energy supply is 8,236 kWh. About 78% of the whole consumption can be theoretically made from natural energy. The energy supply is calculated on the low side during prediction. Therefore, an increase in the energy supply is expected by installing a solar collector based on solar energy, expanding the solar panel area, and increasing the number of wind mills. However, this energy is partially lost via an inverter while it is supplied to the general domestic equipment. At the six main points in Tokyo and its districts, the adaptability of natural energy used based on the regional characteristics is investigated presently and the installation of a system is examined. 13 refs., 2 figs., 6 tabs.

  18. Development of a high temperature solar receiver for high-efficient thermionic conversion systems; Fukugo netsuden henkan system yo chokoon taiyo junetsuki no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Umeoka, T; Naito, H; Yugami, H; Arashi, H [Tohoku University, Sendai (Japan). Faculty of Engineering

    1996-10-27

    For thermionic conversion systems (TIC) using concentrated sunlight as heat source, the newly developed solar receiver was tested. Concentrated sunlight aims at the inner surface of the cavity type solar receiver. The emitter of TIC installed in the rear of the solar receiver is uniformly heated over 1700K by thermal radiation from the rear of the solar receiver, emitting thermion. Electric power is generated by collecting the thermion by collector. Mo is used as emitter material, however, because of poor heat absorption of Mo, high-absorptive TiC is used for heat absorption surface to heat Mo by thermal conduction from high-temperature TiC. Functionally gradient material (FGM) with an intermediate layer of gradient TiC/Mo ratios between TiC and Mo is used as emitter material. The emitter is thus uniformly heated at high temperatures of 1723{plus_minus}12K. As a result, the developed solar receiver is applicable to heat the emitter of TIC. Heat flux measurement at the graphite cavity clarified that cavity temperature of as high as 1780K and heat flow of 50W/cm{sup 2} are obtained at 4.7kW in input. 6 figs.

  19. Optimum design of composite panel with photovoltaic-thermo module. Absorbing effect of cooling panel; Hikari netsu fukugo panel no saiteki sekkei. Reikyaku panel no kyunetsu koka

    Energy Technology Data Exchange (ETDEWEB)

    Sato, M; Kikuchi, S; Tani, T [Science University of Tokyo, Tokyo (Japan); Kadotani, K; Imaizumi, H [Komatsu Ltd., Tokyo (Japan)

    1996-10-27

    The composite panel with photovoltaic-thermo module becomes higher in energy-saving than the conventional air-conditioning system by the independent radiational heating and cooling effect obtained when the generating panel using a solar cell module is combined with the heating and cooling panel using a thermo-element module. The output of a solar cell module can be directly used because the solar cell module operates in AC. This paper reports the relation between the absorbed value and power consumption of the cooling panel, while paying attention to the cooling panel. The performance coefficient of the maximum absorbed value from an non-absorbing substance to a cooling panel is 2 to 3. Assume that the cooling panel during non-adiabatic operation is operated using a solar cell module of 800 W/m{sup 2} in solar intensity and 15% in conversion efficiency. The cooling-surface temperature difference is 12.12 K, and the maximum absorbed value of a non-absorbing substance to a cooling panel is 39.12 W/m{sup 2}. The absorbed value of the outer temperature to the cooling panel is 74.4 W/m{sup 2}, and each performance coefficient is 3.26 and 0.62. The absorbed value must be calculated for evaluation from the cooling-surface temperature difference measured directly from the cooling panel. 4 refs., 8 figs., 1 tab.

  20. Hybrid structure in civil engineering construction. Composite types of steel and concrete; Doboku bun`ya ni okeru fukugo kozo. Kozai to concrete no ittai keishiki

    Energy Technology Data Exchange (ETDEWEB)

    Sato, T. [JR Railway Technical Research Inst. Tokyo (Japan)

    1995-03-30

    In connection with hybrid structures in civil engineering construction, classification and application of composite types of steel and concrete are discussed. H steel embedded beam is a composite beam in which the H shape steel of the main beam is connected to rolled or welded H shape steel using cross beams. Composite structure columns are grouped into the composite column and the steel pipe concrete column. SRC piers are often adopted from the viewpoints of constraints for execution of works and vibration proof. Steel and concrete hybrid structure is a kind of structural system in which various kinds of materials such as steel, RC, or PC members are connected. The cable stayed bridge utilizes characteristics of steel and concrete effectively. For the piers of municipal expressway viaducts, there are executed cases of mixed structures which have RC, SRC columns for T shape piers and S structure for the bridges. SRC structure and composite columns are adopted often for structures of subway stations. 7 refs., 7 figs.

  1. Proposal and study of a long-span composite cable-stayed bridge with new hybrid girder; Atarashii gosei kozo shuketa wo mochiita chodai fukugo shachokyo no kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Yoshida, K.; Hishiki, Y.; Furuichi, K. [Kajima Corp., Tokyo (Japan)

    1999-09-30

    A hybrid or mixed structure (composite structures) are a matter of increasing concern which takes in each advantage of steel and concrete. A field of bridges is no exception, with the plan and construction carried out for the new type of composite bridge, such as a composite cable-stayed bridge and a composite extra dose bridge as a long span bridge, and a composite truss bridge and a corrugated steel plate web bridge as a medium-span bridge, with technological development becoming active in this field. In such a technological trend, a hybrid two-girder structure was devised, a structure consisting of a concrete filled steel pipe for a girder and a precast (PC) floor plate for a floor board, as the girder structure of a long-span cable-stayed bridge in the subject research; also, applicability was examined using, as an example, the composite cable-stayed bridge with hybrid girders employed for the span. This paper reports the result of the analysis of the entire system, the analysis made for the purpose of examining the characteristic and the feasibility of this hybrid girder. The analysis revealed the structural feasibility of the long-span composite cable-stayed bridge using two hybrid girders of concrete-filled steel pipes thus devised. (NEDO)

  2. Prestressed concrete. Composite material perfectly utilizing the merits of steel and concrete; Puresutoresu concrete. Ko to concreteto no tokucho wo kanzen ni ikashita fukugo sozai

    Energy Technology Data Exchange (ETDEWEB)

    Sugawara, M. [Kyokuto Kogen Concrete Shinko Co. Ltd., Tokyo (Japan)

    1996-10-15

    Since the early stage of the development of the prestressed concrete (PC) manufacturing techniques, it has been said that forming a single PC structure by uniting precast segments with PC steel material into one is a construction method making the most of the feature of PC. This paper roughly describes the history of the development of PC and concrete examples of PC, centering on the construction techniques effectively utilizing the principle of PC and its materials. Especially, a PC bridge is superior to a steel bridge with respect to noise and vibration, so that the construction works of replacing railway steel bridges and railway elevated bridges by PC bridges have come to be seen in many places recently. In order to increase the span of a PC bridge, the reduction of the weight is a major factor. Therefore, an outer cable system has come to be used so as to reduce the thickness is cross section of the web of a PC beam as much as possible. The changes of the maximum span of cable stayed bridge are listed in a table in comparison of PC bridges with steel bridges. 29 refs., 9 figs., 1 tab.

  3. Fiscal 1997 industrial technology R and D project. Research report on development of use technology of bio- resources such as complex biosystem (Development of use and production technologies of complex biosystems); 1997 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Fukugo seibutsukei riyo seisan gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This project aims to establish production technology of functional substances, oil degradation and purification technology, and use technology of unused oil fraction through development of cultivation control technology of complex biosystems. For functional material production technology, as functional substances some specific marine bacteria inhibitors, antibreeding substances of microalgae, and UV absorption substances were isolated. The productivity of korormicin as specific inhibitor against marine bacteria was improved considerably by cultivation method. For research on molecular genetic analysis technology, a new identification technology and a simple automatic analysis system of microeucaryotes using genes were developed. For global environment purification technology such as efficient degradation of pollutants, study was made on cultivation control technology of phenol- degrading consortia, population dynamics of oil-degrading microbial consortia and a restoration method of oil pollution by complex biosystem at lower temperature, and the demonstration experiment of oil degradation were carried out. (NEDO)

  4. Fiscal 1997 research report on development of use technology of bio-resources such as complex biosystem (Development of use and production technologies of complex biosystems); 1997 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho (fukugo seibutsukei riyo seisan gijutsu no kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This report summarizes the fiscal 1997 research results on production technology of functional materials, and the research study result for utilizing substance production and decomposition by complex biosystem for industries. For detecting technique of microorganisms in soil, staining by CFDA-AM was suitable, and allowed visualization of sulfate- reducing bacteria during culture. For research on functional analysis technology, study was made on atomic force microscope technology to detect microorganisms in environment and observe their fine structures. For research on detection, separation and cultivation technology of difficult-to-culture microorganisms, a molecular genetic analysis method of microbial communities and a determination method of their viability were selected. For functional substance production technology, study was made on technical utilization of bioflocculant produced by microbial consortia as environment-friendly oil removal reagent, and on gene transfer control in microbial consortia. For the research study for the project, survey was made on useful substances produced by complex biosystem. (NEDO)

  5. Fiscal 1998 R and D project on industrial technology. Development report on use technology of bioresources such as bioconsortia (Development of analysis technology of bioconsortia); 1998 nendo sangyo gijutsu kenkyu kaihatsu jigyo. Fukugo seibutsukeinado seibutsu shigen riyo gijutsu kaihatsu (fukugo seibutsukei kaiseki gijutsu no kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    For use of advanced functions of bioconsortia (complex microorganisms composed of more than 2 microorganisms with certain specific function), this project analyzes specific functions of specific organisms and the interaction between the specific functions, and develops isolation and incubation technologies of component organisms. In fiscal 1998, to promote this project, the meetings were held frequently in National Institute of Bioscience and human Technology. Study was made on production of useful substances and useful degradation functions in association with bioconsortia. The result showed that microorganisms coexisting with nematode produced physiologically active substances exhibiting antimicrobial activities to tubercle bacillus, MRSA and others, microorganisms coexisting in eggs of some insects produced substances having antiviral activities and activities against pathogenic bacteria in a plant, and microorganisms growing in some plants or mycorrhiza organisms produced insecticidal substances or growing-promoting substance. The basic understanding was obtained on cooperative actions of bioconsortia to bioremediation and degradation of organic substances. (NEDO)

  6. FY 1997 R/D project of industrial and scientific technologies contracted with NEDO. Report on technology development of utilization of biological resources such as bioconsortia (development of analytical techniques of bioconsortia); 1997 nendo sangyo gijutsu kenkyu kaihatsu jigyo Shin energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu (fukugo seibutsukei kaiseki gijutsu no kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    Bioconsortia are microbial composites composing of more than two kinds of microorganisms with special functions. To utilize their advanced functions, some techniques have been developed for analyzing their functions and interactions, and for identification, separation and incubation of the constituent microbial groups. In FY 1997, an investigation was made on technology trends, domestic researchers, and research topics related to bioconsortia. To manage and promote the progress of research at the National Institute of Bioscience and Human-Technology where the centralized management of this project is conducted, meetings are held once a month to examine the progress at the institute, in which reports are made and discussions are held on how each research item is progressing. In addition, meetings of the committee to promote research are held every other month to consider and examine measures required for promoting the research. Re-entrustment of research has been made on two subjects, i.e., `Studies on biological significance of symbiotic microorganisms` by Prof. Ishikawa of the University of Tokyo, and `Study on the relationship between the biosynthesis of useful terpenic materials of plant origin and the differentiation of plant tissues, and their effective production by plant cell cultures` by Prof. Inoue of Gifu Pharmaceutical University. 27 refs., 13 figs., 1 tab.

  7. Achievement report for fiscal 1997 on the development of technologies for utilizing biological resources such as complex biosystems. Development of complex biosystem analyzing technology; 1997 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Fukugo seibutsukei kaiseki gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The aim is to utilize the sophisticated functions of complex biosystems. In the research and development of technologies for effectively utilizing unexploited resources and substances such as seeweeds and algae, seaweeds are added to seawater to turn into a microbial suspension after the passage of two weeks, the suspension is next scattered on a carageenan culture medium, and then carageenan decomposing microbes are obtained. In the research and development of technologies for utilizing microbe/fauna-flora complex systems, technologies for exploring and analyzing microbes are studied. For this purpose, 48 kinds of sponges and 300 kinds of bacteria symbiotic with the sponges are sampled in Malaysia. Out of them, 15 exhibit enzyme inhibition and Artemia salina lethality activities. In the development of technologies for analyzing the functions of microbes engaged in the production of useful resources and substances for animals and plants, 150 kinds of micro-algae are subjected to screening using protease and chitinase inhibiting activities as the indexes, and it is found that an extract of Isochrysis galbana displays an intense inhibitory activity. The alga is cultured in quantities, the active component is isolated from 20g of dried alga, and its constitution is determined. (NEDO)

  8. FY 1991 report on the results of the surveys on the technologies for forming composite materials. Research and development of the new technologies for forming composite materials (Comprehensive surveys and researches); 1991 nendo fukugo zairyo seikei gijutsu chosa hokokusho. Fukugo zairyo shinseikei gijutsu no kenkyu kaihatsu (sogo chosa kenkyu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1992-03-01

    This project is aimed at development of new technologies for forming composite materials by studying the methods for controlling structures of ceramic- and metal-based composite materials, and also at development of the technologies for forming near-net shapes utilizing the phenomenon of superplasticity. The literature survey is conducted to help promote the developments, and the abstracts of the major papers are pigeonholed into 4 general categories; (1) production and properties of ceramic-based composite materials, (2) superplasticity of ceramic-based composite materials, (3) production and properties of metal-based composite materials, and (4) superplasticity of metal-based composite materials. This paper summarizes the abstract of these papers. The category (1) includes carbon fiber reinforced Sialon composites produced by polymer pyrolysis, the category (2) includes superplasticity of functional ceramics, and comparison of tensile and compressive creep behavior of a superplastic yttria-stabilized zirconia-20 wt.% alumina composite, the category (3) includes in-situ metal matrix composite, and the category (4) includes high strain rate superplasticity in whisker-reinforced alumina composites, and application of superplasticity to fabrication of metal matrix composites. (NEDO)

  9. Fiscal 1992 survey report of R and D on new forming technology of composite material. Development of innovative technology for producing members for high efficiency power generation; 1992 nendo fukugo zairyo seikei gijutsu chosa hokokusho. Fukugo zairyo shinseikei gijutsu no kenkyu kaihatsu (kokoritsu hatsuden'yo buzai soseigijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-03-01

    Composite forming technology is being developed which is intended to manifest superplasticity phenomenon of ceramic matrix and metallic matrix composite materials; also being developed is an effective efficient superplastic processing technology which utilizes this composite forming technology. The related technologies were investigated comprehensively systematically with the purpose of promoting the development. First, an overview was given in the present state and problems of ceramic matrix/metallic matrix composite technologies and in the forefront of the superplasticity research of ceramic matrix materials, and then, the related technologies of these composite materials were pigeonholed under the following items: 1. assesment/strength/dynamic properties, 2. composite process and property, 3. composite forming process, 4. superplasticity, 5. process and superplasticity, and 6. others. The titles of the rearranged summary documents are, for example, surface modification and casting of SiC platelets in Al{sub 2}O{sub 3} composites, deformation of Al{sub 2}O{sub 3}/TiC composites at elevated temperatures, superplastic bulging of fine-grained zirconia, forging of short alumina fiber reinforced aluminum alloy, and on superplasticity in silicon carbide reinforced aluminum composites. (NEDO)

  10. FY 1998 R and D of utilization of biological resources such as those in bioconsortia. Report on development results of techniques for utilization/production of organisms in bioconsortia; 1998 nendo fukugo seibutsukeinado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Fukugo seibutsukei riyo seisan gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The objectives are set to analyze functions and interactions of organisms having specific functions, to develop the techniques for isolating and cultivating the constituent organisms, and thereby to develop the techniques for their industrial utilization, in order to develop the techniques for handling organisms in bioconsortia as the techniques to utilize their functions, e.g., production and decomposition of materials, and also to develop the techniques for culturing/controlling microorganisms in bioconsortia and for strengthening their functions. The FY 1998 themes are development of the functional material production technology, and comprehensive study for the project. More concretely, the former includes histochemical analytical technology (development of techniques for detecting microorganisms in soil, and of techniques for in-situ detection/isolation of specific microorganisms in bioconsortia and for analysis their functions), isolation and culture technology (development of detection, separation and cultivation technology of microorganisms that are not easily cultured), functional substance production technology (technical utilization of microbial consortia for production of environment-friendly oil/water separation polymers), and functional material production technology (development of methods for artificial gene exchange in microbial consortia). (NEDO)

  11. Report on achievements in fiscal 1999. Development of technology to utilize biological resources such as composite organism systems (development of technology to utilize and produce composite organism systems); 1999 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Fukugo seibutsukei riyo seisan gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    It is intended to achieve the following objectives in terms of the technologies to utilize such functions as material production and material decomposition by using composite organism systems: develop a technology to handle the composite organism systems; establish a composite microorganism cultivation control technology, and a composite microorganism system function strengthening technology; develop a technology to separate and cultivate organism groups constituting them, and develop industrial utilization technologies. The fiscal 1999 has discussed developing the elementary technologies for the technology to utilize functions of the composite organism systems on the following research items: 1. a functional material production technology; and 2. comprehensive investigations and researches. In Item 1, development was made on a technology to detect, separate and cultivate microorganisms in soil as the histochemical analytical technology. Development was made on an in situ detection, separation and function analyzing technology for particular composite microorganisms as the function analyzing technology. In the separation and cultivation technology, development was made on a technology to detect, separate and cultivate difficult-to-cultivate microorganisms. In the functional material production technology, development was made on a technology to utilize microbial consortia producing environmentally harmonizing oil-water separating polymers, and a method to execute artificially the gene exchange in the microbial consortia. (NEDO)

  12. FY 1998 report on the results of the development of utilization technology of biological resources such as bioconsortia. Development of the bioconsortia system utilization/production technology; 1998 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Fukugo seibutsukei riyo seisan gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    For the purpose of developing the industrial utilization technology, analysis was made of functions and interactions of the specified functional biological groups, and at the same time the developmental study was made of the technology to isolate/culture the constitutive biological groups. The FY 1998 results were summed up. As to the technology to detect microorganisms in soil, the SFDA method was improved and the new dyeing method was developed. And, there almost was hope for the development. Concerning the functional analysis technology, the functional substances peculiarly manifested only in the complex system in the ocean environment are searched. Several kinds of compounds were found out, and at the same time the test to confirm the biological activity is under way. Relating to the isolation/culture technology, study was made on rotten fruit, and the existence in the sample of the microorganisms which are difficult in isolation/culture was newly confirmed. In regard to the culture of the microorganisms which are difficult in isolation/culture, availability of the replica method was found out. As to the technology to produce functional substances, studies were made on the following: utilization technology of the environmental harmony type oil/water separation polymer producing microbial consortia, method to artificially make gene exchanges in the microbial consortia, etc. (NEDO)

  13. FY 1998 report on the results of the development of the utilization technology of biological resources such as bioconsortia. Development of the consortium based analysis technology; 1998 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Fukugo seibutsukei kaiseki gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    For the purpose of establishing the analysis technology and industrial utilization technology required for the establishment of the utilization technology of consortia's high functions which are already used in the fermentation technology field over the limit of the conventional bio-technology using functions of single biological species, study was made to look for the consortium based analysis technology by which the consortium base can be analyzed as it is using the molecular biological method. Studies were made in the following four fields: 1) new identification technology of eucaryote using II DNA topoisomerase genes (PCR amplification method of II DNA topoisomerase genes); 2) method to detect new recognition peptide activated microorganism (adjustment of cortical antigen); 3) technology to elucidate detection/response mechanism of the specific environment and adaptation/resistance mechanism of the specific environment; 4) incubation method inside 3D matrices. In 3), studies were made of the analysis of inhibition mechanism of korormicin and separation of solvent-resistant oil degradable bacteria. In 4), for the settlement and dynamic analysis of microorganism consortium by studying incubation conditions, conducted was the molecular system analysis of bacteria and eumycetes inhabiting in sponge. (NEDO)

  14. Fiscal 1992 survey report of R and D on new forming technology of composite material. Development of innovative technology for producing members for high efficiency power generation; 1992 nendo fukugo zairyo seikei gijutsu chosa hokokusho. Fukugo zairyo shinseikei gijutsu no kenkyu kaihatsu (kokoritsu hatsuden'yo buzai soseigijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-03-01

    Composite forming technology is being developed which is intended to manifest superplasticity phenomenon of ceramic matrix and metallic matrix composite materials; also being developed is an effective efficient superplastic processing technology which utilizes this composite forming technology. The related technologies were investigated comprehensively systematically with the purpose of promoting the development. First, an overview was given in the present state and problems of ceramic matrix/metallic matrix composite technologies and in the forefront of the superplasticity research of ceramic matrix materials, and then, the related technologies of these composite materials were pigeonholed under the following items: 1. assesment/strength/dynamic properties, 2. composite process and property, 3. composite forming process, 4. superplasticity, 5. process and superplasticity, and 6. others. The titles of the rearranged summary documents are, for example, surface modification and casting of SiC platelets in Al{sub 2}O{sub 3} composites, deformation of Al{sub 2}O{sub 3}/TiC composites at elevated temperatures, superplastic bulging of fine-grained zirconia, forging of short alumina fiber reinforced aluminum alloy, and on superplasticity in silicon carbide reinforced aluminum composites. (NEDO)

  15. Industrial science and technology research and development business for fiscal 1998. Research and development achievement report on glycoconjugate production and utilization technologies (Development of technologies of glycoconjugate-aided CO{sub 2} fixation and utilization); 1998 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo. Fukugo toshitsu seisan riyo gijutsu no kenkyu kaihatsu seika hokokusho (fukugo toshitsu oyo nisanka tanso koteika yuko riyo gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Enzymatic and chemical methods were combined and methods were developed for synthesizing mucin type sugar chains and glycopeptides. The influence of sugar chain positions and structures on glycoconjugate stereo structures and physiological activities was analyzed, and glycopeptide structural activities and glycoconjugate remodelling were studied. To create an industrial advantage in a glycoprotein production system by use of zooblasts, sugar chain structure control through sugar transfase occurrence control was studied. For the production of man-adaptive sugar chains using yeast, new yeast variations were subjected to molecular breeding, and tested for the resultant improvement on productivity. Sugar chain marking and refining techniques and various responding mechanisms on the solid surface were elucidated, which enabled structure analyses using sugar chain recognition molecules such as lectins and antibodies. A database on interactions between sugar chains and sugar chain recognition molecules was constructed using the said findings. An analyzing program was also formulated tentatively. This paper also covers general surveys and studies on technologies of producing and utilizing glycoconjugates. (NEDO)

  16. FY 1998 report on the results of the development of utilization technology of biological resources such as bioconsortia. Development of the bioconsortia system utilization/production technology; 1998 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Fukugo seibutsukei riyo seisan gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    For the purpose of establishing the technology to use high grade functions of the bioconsortia system, the R and D were conducted, and the FY 1998 results were summed up. As to the study of functional material producing technology, screening of the 2400 strains owned by Marine Biotechnology Institute was conducted using reporter strain, and about 400 strains of homoserine lactone producing bacteria which are interbiological information convey substances were obtained. Concerning the effective decomposing/purifying technology of petroleum products, study of petroleum decomposition analysis technology was finished in the development of culture/control technology of petroleum decomposition microbial consortia constitutive bacteria. Relating to the analysis of the petroleum decomposition microbial consortia, changes in the bacteria population at the site of the heavy oil pollution accident on the Sea of Japan were investigated for the past one year by the PCR/DGGE method. It was found out that levels of the oil pollution in ocean could be assessed by measuring the concentration of Alcanivorax. As to the technology for highly utilizing unused petroleum fractions, conducted were the chemical analysis of photolytic crude oil, selection of the decomposition microbial consortia, etc. (NEDO)

  17. Evaluation report on research and development of an ultra high performance laser applied composite production system. Achievement report; Chokoseino laser oyo fukugo seisan system no kenkyu kaihatsu ni kansuru hyoka hokokusho. Seika hokokuhen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1985-08-01

    Research, development, and evaluation were made on a composite production system applicable to manufacture products of a large number of types in small quantities. In the research and development of a total system, verification works were carried out by studying basic designs, operation of the composite production system, and experiment plant operation. Research and development on cutting and processing technologies included studies on composite cutting mechanisms, general purpose fitting technologies, control systems, and drive systems. In the research and development of laser applied technologies, studies were performed on large output laser oscillators, the control thereof, and laser processing technologies. In the research and development of automatic diagnosis technologies, studies were executed on failure diagnosis, accuracy compensation, automatic inspection, and accuracy diagnostic technologies. In the research and development of design and control technologies, studies were carried out on automatic designing, process designing, and process controlling technologies. In the study of operation of the Tsukuba experiment plant, discussions were given on configuration of the experiment plant, laser processing mechanism, composite assembly mechanism, production inspection mechanism, and system operation. Furthermore, design studies were also carried out on practically usable systems. (NEDO)

  18. Joint analysis of refraction seismic survey with multilevel hydrophone measurement (application for detecting the high velocity thin lid); Kussekiho jishin tansa data to kochu hydrophone data no fukugo kaiseki no rei

    Energy Technology Data Exchange (ETDEWEB)

    Mori, S; Harada, T; Hayashi, K [OYO Corp., Tokyo (Japan)

    1996-05-01

    During a refraction seismic survey conducted at a spot where a high-speed lava layer is supposedly concealed, the distribution of lava layer was estimated, and a composite analysis involving the vibration data received via hydrophones arranged in a bore hole was accomplished using a high-speed model based on an assumed geological section. The refraction survey centered on the bore hole and was accomplished using 250m-long traverse lines extending therefrom, one to the upstream and the other to the downstream of a river, producing a total length of 500m. The hydrophones were installed in the bore hole, and the measurement was carried out in an offset VSP-like observation pattern. In the analysis, the velocities obtained by the refraction survey and velocity logging were assigned to each layer on the basis of the assumed geological section for the construction of a velocity distribution model, which served as the early model for the repetition of calculation. Calculation was repeated with help of the said model, and a geological structure, capable of explaining the travel time data collected during the refraction survey and velocity logging, was successfully estimated. 1 ref., 5 figs.

  19. Research and development of basic technologies for next generation industries, 'composite materials'. Evaluation on final research and development (interim report); Jisedai sangyo kiban gijutsu kenkyu kaihatsu. Fukugo zairyo (saishu kenkyu kaihatsu hyoka 2)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1989-05-01

    Development was made on a technology to evaluate quality of composite materials. Few data are available for environmental resistance of composite materials, whereas identification of environmental deterioration behavior and establishment of a environmental resistance evaluating technology are a significant issue in utilizing these materials as new materials for space, aeronautics, and marine applications in the future. The present research was taken up with objectives to elucidate deterioration behavior of composite materials exposed to special environment in the atmosphere and space and to establish methods for acceleration tests and environmental performance evaluation by using simulated environments equivalent to the natural environment exposure. The former period (fiscal 1982 through 1984) has investigated environmental conditions in the atmosphere and space, prepared standard test specimens, performed design on environmental devices simulating the environmental elements, as well as tests on deterioration due to environmental elements, and systematized the deterioration characteristics to establish composite test conditions. The latter period (fiscal 1985 through 1988) has developed the composite environment testing device based on the result achieved in the former period, elucidated the deterioration behavior under the composite environmental conditions, and performed evaluation tests on the developed composite materials (FRP). (NEDO)

  20. Effect of release sheet on the preparation of CF paper/aluminium phosphate composite; Tanso sen`i paper/rinsan aluminium fukugo zairyo choseiji ni okeru hakurizai no eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Hoshii, S.; Kojima, A. [Gunma National College of Technology, Gunma (Japan); Otani, S. [Tokai University, Tokyo (Japan). School of High-Technology for Human Walfare

    1995-12-27

    A composite material was prepared with carbon fiber (CF) and a matrix of phosphate (as named ACP) mainly consisting of aluminum phosphate. CF was used in the form of felt cloth. Prepreg was made with CF and ACP, which was laminated and formed under pressure in a hot press into a composite. The prepreg was pretreated by drying at 80{degree}C to form a compact matrix and to increase the adhesion between laminated prepregs. At the hot press treatment thorough removal of water was tried by using absorbent sheet and release sheet to form a compact structure. Consequently, porosity of CF/ACP composite decreased, and its bulk density and bending strength increased. SEM observation showed the formation of vitreous and compact matrix. Besides, adhesion between prepregs and shear fracture resistance were improved. 24 refs., 3 figs., 3 tabs.

  1. Report on evaluation of research and development of combined production systems aided by superhighly functional laser. Evaluation; Chokoseino laser oyo fukugo seisan system no kenkyu kaihatsu ni kansuru hyoka hokokusho. Hyokahen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1985-08-01

    Described herein are combined production systems, capable of flexibly, quickly producing diversified types of machine members in small quantities in an integrated manner from raw stock processing to assembling/inspection. Development of the related techniques, including those for development of lasers of high output, has been implemented in an integrated manner for development of optical members, processing techniques and so on. The techniques developed by this project are expected to be applicable to various industrial purposes, because of their high synergistic effects. There was no oscillator of high output, when the project was started. This project has reduced device size and cost and improved their reliability, greatly contributing to expanded use of lasers. The solid-state lasers have been developed, not only for growing large-size crystals but also for transmission of light. The automation guidelines for assembling and inspection steps, which heavily depended on manual works, have been drawn. The machining functions have been improved by incorporating the processing techniques aided by lasers of high or medium output. One of the major problems involved in the conventional system is very time-consuming works required for establishing the software for the computer by which it is aided for operation. This problem has been solved by providing the modular structure machines developed by this project with flexibility of machining machine. (NEDO)

  2. Research and development of the industrial basic techniques of the next generation. Composite materials (Final research and development evaluation / Part 1); Jisedai dangyo kiban gijutsu kenkyu kaihatsu. Fukugo zairyo (Saishu kenkyu kaihatsu hyoka 1)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1989-05-01

    This R and D project is aimed at development of highly functional materials for aerospace devices, bringing into focus research and development of resin-based composite materials (FRPs), metal-based composite materials (FRMs), and evaluation of their properties and their design techniques. The basic target properties are heat resistance temperature of 250 degrees C or higher and tensile strength of 240 kg/mm{sup 2} or more for the FRPs, and heat resistance temperature of 450 degrees C or higher and tensile strength of 150 kgf/mm{sup 2} or more for the FRMs. This R and D program has been implemented for 8 years for development of raw materials, molding/processing techniques, quality evaluation and designs through information exchange and discussions of the experts in each area under integrated, close cooperation from raw materials to molding/processing. Most of the data indicate that the target properties and objects are satisfied or exceeded. It is therefore concluded that this project for the composite materials, extending for 8 years in 3 phases, has sufficiently achieved the initial objects. The unique techniques are incorporated in the raw materials, molding/processing processes, quality evaluation and designs. These efforts have produced the FRPs and FRMs of the world highest qualities. (NEDO)

  3. Research and development of basic technologies for next generation industries, 'composite materials'. Evaluation on final research and development (final report); Jisedai sangyo kiban gijutsu kenkyu kaihatsu. Fukugo zairyo (saishu kenkyu kaihatsu hyoka 3)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1989-05-01

    This paper carries the specifications for advanced composites in the investigation (SACOI), and lists the titles and organizations and persons in charge. The paper describes the specifications for test and measurement methods for each title. The titles are: testing methods of matrix resins for carbon fiber reinforced plastics, measurement method for thermogravimetry and glass transition temperature for the same plastics, measuring methods for specific gravity, fiber and void contents of carbon fiber reinforced plastics, testing methods for tensile properties, compression properties, apparent interlaminar shear strength, tension fatigue, interlaminar fracture toughness, crack propagation, high velocity impact, izod impact, and environmental resistance for the same plastics, evaluation methods for hot-press formability of prepreg, autoclave formability of prepreg for the same plastics, measuring methods for tex count, density, and fiber volume fraction of wire preform, testing methods for tensile strength at room temperature, tensile strength at elevated temperature of wire preform, measuring methods for thermal expansion coefficient, tension properties, compression properties, tensile shear strength, interlaminar shear strength, in-plane shear strength, tensile fatigue, high velocity impact and regular impact of wire preform. (NEDO)

  4. Achievement report on research and development of the industrial basic technologies of the next generation in fiscal 1981. Research and development of composite materials; 1981 nendo jisedai sangyo kiban gijutsu itaku kenkyu kaihatsu seika hokokusho. Fukugo zairyo no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1982-03-01

    Described herein are the results of the FY 1981 research and development for composite materials, established by the R and D system for the basic technologies of the next generation. The R and D project for resin-based composite materials involves basic researches on the matrix resins, and surface modification of the reinforcing fibers. The investigations and basic tests are conducted for monolithic molding, other types of molding, and cutting and boring by, e.g., laser beams and water jet. The other related efforts include researches on analysis theories for optimization of strength and rigidity of the composite structures, and development of the optimization programs. For the R and D project for the metal-based composite materials, the efforts are directed to understanding wettability and reactivity of the reinforcing fibers with metals, and development of the techniques for producing various types of preforms and compositing methods. The basic researches are conducted for hot pressing/rolling molding, extrusion/withdrawal, powder molding and melt molding of the composite materials with aluminum alloys as the matrices. The other R and D items include investigations on methods for evaluating qualities for the steps form the stock preparation to production of the final products. (NEDO)

  5. Natural convection and radiation heat transfer in a vertical porous layer with a hexagonal honeycomb core. 2nd Report. Experiment on heat transfer; Honeycomb core de shikirareta enchoku takoshitsu sonai no shizen tairyu - fukusha fukugo netsu dentatsu. 2. Dennetsu jikken

    Energy Technology Data Exchange (ETDEWEB)

    Yamaguchi, Y; Asako, Y [Tokyo Metropolitan Univ., Tokyo (Japan). Faculty of Technology

    1997-06-25

    The combined natural convection and radiation heat transfer characteristics in a vertical porous layer with a hexagonal honeycomb core were investigate experimentally. The temperature distributions on the honeycomb core wall and the combined heat transfer rates through the porous layer were measured. The measurements of the heat transfer were accomplished using the guarded hot plate (GHP) method. The honeycomb core wall was made of paper and large mesh foamed resins were inserted into the honeycomb enclosures. The measurements were performed while varying the radiation parameters between 0.5 to 0.65, varying the temperature ratios between 0.01 to 0.1 and varying the Darcy-Rayleigh numbers between 5 to 80, and for a fixed aspect ratio of H/L=1. The experimental results for Nusselt numbers agreed well with our available numerical results. 9 refs., 8 figs.

  6. Natural convection and radiation heat transfer in a vertical porous layer with a hexagonal honeycomb core. 1st Report. Numerical analysis; Honeycomb core de shikirareta enchoku takoshitsu sonai no shizen tairyu - fukusha fukugo netsu dentatsu. 1. Suchi kaiseki

    Energy Technology Data Exchange (ETDEWEB)

    Yamaguchi, Y; Asako, Y [Tokyo Metropolitan Univ., Tokyo (Japan). Faculty of Technology; Faghri, M [University of Rhode Island, Kingston, RI (United States)

    1997-06-25

    Combined heat transfer characteristics are obtained numerically for three-dimensional natural convection and thermal radiation in a long and wide vertical porous layer with a hexagonal honeycomb core. The porous layer is assumed to be both homogeneous and isotropic. The pure Darcy law for the fluid flow and Rosseland`s approximation for the radiation are employed. The numerical methodology is based on an algebraic coordinate transformation technique and the transformed governing equations are solved using the SIMPLE algorithm. The effect of radiation on the beat transfer characteristics is investigated in a wide range of radiation numbers and temperature ratios, for two Darcy-Rayleigh number values (Ra*=100, 1000), and for a fixed aspect ratio of H/L=1. The results are presented in the form of combined and convection heat transfer coefficients, and are compared with the corresponding values for pure natural convection. 7 refs., 12 figs., 1 tab.

  7. Fiscal 1992 research report. Research trend survey of research and development of advanced materials for extreme environments (Carbon composite material); 1992 nendo chotaikankyosei senshin zairyo no kenkyu kaihatsu chosa hokokusho. Tansokei fukugo zairyo ni kakawaru kenkyu doko chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-03-01

    Trends of research on carbon based composite materials were surveyed through studying various reports and technical literature and evaluation of the project named above was conducted through holding interviews with researchers. In the survey of research trends for which technical literature perusal was the main tool, it was found that in most technical articles the important task was the enhancement of oxidation resistance, that SiC coating was in use for this purpose, that the technology would meet its limit at 1,600-1,700 degrees C, and that it would turn useless at temperatures beyond 1,800 degrees C. For the evaluation of the project, interviews were held with nine researchers not taking part in the project. The researchers favored the project as far as the popularity of the project and the main implementing body and system were concerned, but they negatively evaluated the project's goal of using such materials at 2,000 degrees C in the atmosphere. This research report comprises four chapters which cover (1) trends of research on C/C (carbon/carbon) composites, (2) a summarized research report on C/C composites, (3) survey of patents associated with C/C composites, and (4) opinions expressed toward the project and the results of evaluation conducted on the same. (NEDO)

  8. Preparation of amorphous-crystalline SiO{sub 2} composite by hot isostatic pressing (HIP). 2; HIP ho ni yoru SiO{sub 2} kei hishoshitsu-kesshoshitsu fukugo zairyo no sakusei. 2

    Energy Technology Data Exchange (ETDEWEB)

    Ito, S.; Nishii, J.; Fujii, T.; Akashi, K. [Science University of Tokyo, Tokyo (Japan). Faculty of Science and Tecnology

    2000-08-15

    The composites consisting of {alpha}-quartz crystallites and amorphous SiO{sub 2} were prepared by HIP technique, imitating the structure of natural agate. In the previous study, the K{sub IC} of the composite prepared from the mixed powder of crystallites and amorphous SiO{sub 2} was comparable to that of the natural agate (0.56MN/m{sup 1.5}). In this study, to increase the toughness of the composite, (1) the mixture of silica sol and {alpha}-quartz powder and (2) silica sol including nucleation promoter were examined as starting materials respectively. These starting materials were pressed into powder compacts with {phi} 10 multiplied 50mm in size. The Pyrex glass capsule containing the compact was hipped at 800-1,200 degrees C for 0-120 minutes under the pressure of 200 MPa. The K{sub IC} of the composite obtained from the mixture of silica sol and {alpha}-quartz powder was equivalent to that obtained in the previous study, while the maximum K{sub IC} (0.63 MN/m{sup 1.5}) was obtained when PbCl{sub 2} was used as a nucleation promoter. The nucleation promoter having low solubility in water was useful for the homogeneous generation of the crystallites. (author)

  9. Research and development of the industrial basic technologies of the next generation, 'composite materials (metal-based)'. Evaluation of the first phase research and development; Jisedai sangyo kiban gijutsu kenkyu kaihatsu 'fukugo zairyo (kinzokukei)'. Daiikki kenkyu kaihatsu hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1983-03-31

    The results of the first phase research and development project for developing the metal-based composite materials as the basic technologies of the next generation are evaluated. For development of highly functional materials, the efforts are directed to understanding the basic characteristics regarding wettability and reactivity of PAN-based carbon fibers and PCS-based silicon carbide fibers with metals, in which aluminum-based matrices are considered; preliminary tests for various composting methods; and development of wire preforms as the intermediate materials. Bright prospects have been obtained for improving problems involved in each technique. For development of molding/processing techniques, basic researches have been conducted for hot pressing/rolling, extrusion/withdrawal, powder molding and melt molding, using various reinforcing fibers. Bright prospects have been also obtained for combinations of adequate molding processes for individual materials. For development of design techniques, the basic data regarding mechanical characteristics of FRMs, both domestic and foreign, are collected, and analyzed by the trace tests with specimens, to set up the targets for FRM function improvements, viewed from the designs. (NEDO)

  10. Report on evaluation of research and development of combined production systems aided by superhigh-functional lasers. Abstract; Chokoseino laser oyo fukugo seisan system no kenkyu kaihatsu ni kansuru hyoka hokokusho. Gaiyohen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1985-04-01

    This research and development project is aimed at development of combined production systems, which can flexibly, quickly process metallic stock materials in an integrated manner, with the objectives to promote rationalization and manpower saving for producing diversified types of machine parts in small quantities. Application of laser techniques to metal processing area is another objective of this project. The techniques to be developed by this project include those for system designing/controlling to integrate/combine the steps of processing and cutting stock materials, assembling the parts, and heat treatment and examination of the assemblies; for diversified types of cutting/processing by the mechanisms in which exchangeable constituent elements are assembled; for diversified types of processing shaped stock materials by the mechanisms in which molds and rolls are integrated; for diversified types of automatic assembling and transfer; for applying lasers to cutting, welding, heat treatment and measurement; for precision compensation and failure prediction by automatically diagnosing working conditions throughout the system; and for designs and production management for efficient production. The test plant has started general trial operation. (NEDO)

  11. Research and development of the industrial basic technologies of the next generation, 'composite materials (quality evaluation techniques)'. Evaluation of the first phase research and development; Jisedai sangyo kiban gijutsu kenkyu kaihatsu 'fukugo zairyo (hinshitsu hyoka gijutsu)'. Zenki kenkyu kaihatsu hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1985-03-30

    The results of the first phase research and development project for developing composite materials as the basic technologies of the next generation are evaluated, and the directions of the R and D evaluation for the second phase are set up. The efforts in the first-phase R and D project are aimed at development of methods for measuring carbon fiber surface structure elements; confirmation of the relationship between adhesive shear strength and active surface area; development of methods for determining fracture toughness by standard specimens; estimation of allowable void fraction for inter-layer shear strength; defect detection and quality evaluation by electromagnetic, ultrasonic, laser holography and AE methods; development of methods for detecting resin setting reactions during the molding processes; and understanding deteriorated mechanical characteristics of the resin-based composites by environmental factors, among others. The objectives of the first-phase project have been almost achieved. It is decided that the second-phase R and D project are directed to investigations on the relationship between surface properties of the fibers in the composites and fiber/matrix adhesion; researches on mechanical characteristics involved in fracture of the structural elements; evaluation of mechanical properties of the metal-based composites and investigations on detecting their defects; elucidation of the effects of environmental factors on their strength; and development of the techniques for integrating detection of molding-induced cracking and that of setting reactivity, among others. (NEDO)

  12. Research and development of the industrial basic technologies of the next generation, 'composite materials (resin-based)'. Evaluation of the second phase research and development; Jisedai sangyo kiban gijutsu kenkyu kaihatsu 'fukugo zairyo (jushikei). Dainiki hyoka hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1987-03-31

    The results of the second phase research and development project for developing the resin-based composite materials as the basic technologies of the next generation are evaluated. The second phase (FY 1983 to 1986) project is carried out to achieve the objectives, which are set up based on the objectives for the basic designs and the results of the first phase project. As a result, the concrete (promotion objectives), including those related to mechanical characteristics, have been almost achieved. For development of the highly functional FRP materials, the R and D efforts are directed to improvement of their moldability while satisfying the requirements of high functions, e.g., resistance to heat, leading to development of the basic techniques for epoxy resin-based intermediate materials. These results indicate possibility of commercialization of highly heat-resistant polyimde resin-based and novel resin-based intermediate materials. The results of the novel molding/processing methods, taken up in the second phase project as the ones which use no autoclave, are rated that they are developed to suggest possibility of the eventual commercialization, although the products they give are not always showing sufficient mechanical properties. (NEDO)

  13. Fabrication of TiC-TiO{sub 2} composite powders by thermal plasma oxidation of titanium carbide powder; Tanka chitan funmatsu no plasma sanka hanno ni yori seiseishita TiC-TiO{sub 2} fukugo funmatsu

    Energy Technology Data Exchange (ETDEWEB)

    Ishigaki, T.; Li, Y.; Haneda, H. [National institute for Research Inorganic materials, Tsukuba (Japan); Kataoka, E. [Showa Cabot Supermetals K.K., Tokyo (Japan)

    2000-09-15

    TiC-TiO{sub 2} composite powders were prepared by in-flight oxidation of titanium carbide powder in RF induction thermal plasmas. Original titanium carbide powder of 20 - 38 {mu}m in particle size was axially injected into the center of argon-oxygen plasma. The powders were partially spheroidized and evaporated through the plasma treatment. X-ray diffraction of plasma-treated powders showed the formation of titanium dioxides, both rutile and anatase phases. The phase content of the plasma-prepared powders strongly depended on the plasma conditions, such as the plasma generating pressure and the oxygen flow rate in plasma generating gas. Especially, the increase of oxygen flow rate in plasma gas gave rise to the increase of heat transfer from plasma to powder particles, exothermic heat of oxidation reaction and cooling rate of plasma, giving the increase of spheroidization ratio, formation ratio of titanium dioxides, and content of anatase phases. (author)

  14. FY 1997 report on the improvement of toughness of silicide system intermetallic compounds by complex texture; 1997 nendo chosa hokokusho (fukugo soshikika ni yoru silicide kei kinzokukan kagobutsu no kyojinsei kaizen)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    In order to develop new materials superior in both room- temperature ductility and high-temperature strength, the basic data on MoSi2 intermetallic compounds with complex texture were stored. Intermetallic compound is one of the promising candidates of new super heat-resistant materials superior to conventional super heat-resistant alloys, however, it is extremely poor in ductility at room temperature. Based on available information on isothermal sectional phase diagrams of ternary system (Mo-Si-X system) composed of Mo silicide and the third element (X), some alloy systems were selected in consideration of use of carbide and nitride stably existing as dispersed phase of deposits at high temperature. A knowledge on phase diagrams of ternary system specimens with various compositions was obtained through arc melting, X-ray diffraction and texture observation, and heat treatment conditions for obtaining target complex textures were also determined. Storage of the basic data suggested that improvement of the ductility is possible by forming fine texture through addition of the third element and teat treatment. 21 refs., 58 figs., 15 tabs.

  15. FY 1998 annual report on the improvement of toughness of silicide-based intermetallic compounds by controlling their composite structures; 1998 nendo fukugo soshikika ni yoru shirisaidokei kinzokukan kagobutsu no kyojinsei kaizen chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    Intermetallic compounds, although attracting much attention as most promising materials serviceable at superhigh temperature, are very fragile at normal temperature, which is one of their major disadvantages. Structures of these compounds prepared by the melting method are controlled to improve their toughness by, e.g., changing phase ratio of the initial crystal for the Mo-Si-Nb system to prevent cracking during the melting and casting stages, addition of a third element (e.g., Zr, Ti or Hf) or a mixed component of Nb and Zr to control the structure of Mo{sub 5}Si{sub 3} considered to be a cause for the cracking, and controlling melting and solidification rates for the FZ melting method. The three-phase microstructures with added Hf or Zr show improved toughness, but need additional procedures for controlling solidification and cooling conditions. For the powder method, the MA conditions are investigated with a two-element system, and the effects of Al or Zr as the third element added to the base composition on the composite microstructures and constituent phases are also investigated. Unlike the melting method, the powder method causes no cracking problems during the stock preparation stage and hence is expected to be applicable to production of larger stocks. However, the products by this method are found to be insufficient both in toughness and high-temperature strength. It is necessary to develop methods for cutting down and controlling oxides in the grain boundaries, in order to prevent deterioration of their strength at high temperature. (NEDO)

  16. Fiscal 1993 achievement outline. Research and development of advanced materials for extreme environments (Advanced composite material); Chotaikankyosei senshin zairyo no kenkyu kaihatsu (senshin fukugo zairyo). 1993 nendo seika gaiyo

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    Efforts were made to develop technologies for C/C (carbon/carbon) composite materials and SiC fiber reinforced intermetallic compound composite materials. The efforts involved (1) creation of carbon based composite materials, (2) advanced composite materials, (3) fiber reinforced intermetallic compound composite materials, and (4) comprehensive research activities. In the research, coordination was established between the three technological fields, test standards common to the three were worked out, and relevant technologies were investigated. Studied for development under item (1) were coal pitch derived carbon fiber/carbon based matrix composite materials, PAN (polyacrylonitrile) based carbon fiber/carbon based matrix composite materials, and oxidation resistance enhancement technology. Studied for development under item (2) were oil pitch derived random structure carbon fiber, oil pitch derived onion structure carbon fiber, and oil pitch derived double structure carbon fiber/carbon based matrix composite materials. Studied for development under item (3) were SiC/SiMC (M=metal) silicon carbide based fibers and complexation of intermetallic compounds and the developed silicon carbide based fibers. (NEDO)

  17. Fundamental study on the same kind/different morphology composite material using knitted fabrics for a reinforcing pattern. Amimono wo kyoka keitai to shita doshu ikeitai fukugo zairyo no kisoteki kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Fujiwara, K.; Hamada, Y. (Kyoto Inst. of Technology, Kyoto (Japan))

    1998-05-21

    An experimental study was performed on a polyethylene composite material using knitted fabrics for a reinforcing pattern. The experiment used ultra polymeric polyethylene as a reinforcing material, and low-density polyethylene as a matrix. The reinforcing pattern used flat-knitted fabrics, fabricated by using a knitting machine. Formation temperature, which took melting points of both materials of 147 and 120 degC into account, was set to 145 degC with expectation on bonding of both materials. The tensile test was performed under displacement control of 10.0 mm/min, and after the test, SEM observation was conducted on fracture faces. The following findings were obtained as a result of the experiment: regardless of test piece cutting-out directions and the number of lamination, the fracture was observed in three stages; with two-layer test pieces, stress increased further from fracture strain at about 30%, and the test pieces ended up in final fracture while repeating increase and decrease in the stress; two-layer course test pieces showed tensile strength of 33 MPa, which is an enhancement by 51% of the strength of the matrix polyethylene; and fracture strain showed as high values as 70 to 90% in the two-layer test pieces. 2 refs., 6 figs.

  18. Broad research and application of composite materials. ; Future for textile reinforced resins, rubber, and intelligent composites. Fukugo zairyo no habahiroi kenkyu to oyo ni mukete. ; Textile kyoka jushi, gomu, intelligent composite no shorai

    Energy Technology Data Exchange (ETDEWEB)

    Kawabata, S. (Kyoto University, Kyoto (Japan). Faculty of Engineering)

    1994-02-15

    This paper presents several topics on composite materials and describes the ways the materials should be for the future. Composite materials are accomplishing great evolution, which owes a great deal to application and practical use, particularly the progress in materials. However, an impression is ineffaceable that the technology stays in a limited region as a science to pursue basic principles. A development of the 'post-classical theory' is expected in the future. While fiber technologies are related closely with composites, Japan who has a long history of weaving, knitting, and braiding threads stands behind in devising ideas. Fiber engineering education would have to be addressed with problems. Rubber materials are made and used by freely using composite technologies such as carbon black mixing, vulcanization, and reinforcing with fibrous chords, but no through-design theory has been established. While wool has a function of self-adjustment according to humidity and temperature, such intelligent composites as ones using optic glass fibers for example are expected for their future. 1 fig.

  19. Research and development of the industrial basic technologies of the next generation, 'composite materials (resin-based)'. Evaluation of the first phase research and development; Jisedai sangyo kiban gijutsu kenkyu kaihatsu 'fukugo zairyo (jushikei)'. Daiikki kenkyu kaihatsu hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1984-03-30

    The results of the first phase research and development project for developing the resin-based composite materials as the basic technologies of the next generation are evaluated. This project is aimed at development of the resin-based composite materials as light, high-strength and high-rigidity structural materials. Development of the basic techniques for these materials is of high significance, and highly rated. The first R and D phase efforts are directed to synthesis of new skeleton and terminal compounds, and their introduction into the matrices; application/combination of various fiber surface modification techniques; development of the basic techniques for intermediate materials for three-dimensional fabrics, triaxial fabrics and hybrid materials; improvement of the main techniques for a series of molding/processing steps; adoption of new methods; and development of design programs and elementary design techniques. The technical targets of improving functions of each item have been achieved, or bright prospects have been obtained therefor, each involving potentials of functional improvements by developing new functions. It is also considered that the parallel, competitive development and promotion of 7 routes in researches on the matrix resins have brought great effects. (NEDO)

  20. FY 1999 report on the basic survey of the promotion of Joint Implementation, etc. Beijing Yanshan Petrochemical Co./cogeneration; 1999 nendo Beijing Yanshan sekiyu kako yugen koji netsu heikyu fukugo hatsuden chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    For a combination with COP3 Clean Development Mechanism (CDM), the paper reported the FY 1999 survey of the cogeneration project of Beijing Yanshan Petrochemical Co. The existing two heavy oil fueled boilers (steam output: 240t/h) are dismantled, and two gas turbines and two waste heat boilers (steam output: 241t/h, electricity output: 136.9MW) are installed. The energy conservation effect is approximately 0.91 million tons/year of crude oil. The effect of reduction in greenhouse gas emissions is CO2 2.83 million tons/year. A plan on system interconnection, distribution, electricity, instrumentation control was drawn up. The construction term is planned to be about two and a half years. The initial investment amount is 700 million yuan {+-} 100 million yuan. The expense vs. energy conservation effect was calculated as 98t (crude oil conversion)/year/million yen, and the expense vs. greenhouse gas emission reduction effect 302t-CO2/year/million yen. Concerning the profitability, the generating cost was 0.4 yuan/kWh which dropped from the selling power cost of the Yanshan area, 0.45 yuan/kWh. As candidates of the natural gas fueled cogeneration, there are possibilities of 10 sites and 550MW scale only in the Beijing area. (NEDO)

  1. Fiscal 2000 achievement report. Development of comprehensive technologies for environmental conservation including prevention of global warming by the carbonization of wood, etc.; 2000 nendo jumoku nado no tanka ni yoru ondanka boshinado fukugo kankyo taisaku gijutsu no kaihatsu seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Efforts are exerted to develop new technologies whereby carbon dioxide is absorbed by and fixed in rapidly growing trees. The trees are felled and subjected to high-efficiency carbonization, and the thus-obtained carbonized material is used for environmental purification or the like and then buried in the ground. Studies are under way to find out if the cycle (operations) may be organized into an industry. Activities are conducted in the five fields of (1) carbonized materials, (2) carbonization, (3), industrial use of charcoal, (4) stabilization of charcoal, and (5) reports on surveys (mainly overseas). In field (2), following an introduction consisting of the carbonization mechanism and the definition of terms, surveys are conducted of the existence of carbonizable resources in Japan, distribution channels of imported charcoal and activated charcoal in Japan, various carbonization apparatuses, carbonization equipment incorporated into gasifying fusion furnaces, carbonization furnace as a system, and the trends of development of pyroligneous acid and development of its use. In field (3), studies are made on its use in industries, on its application to agriculture, forestry, and livestock industry, and on the utilization of its electromagnetic properties. (NEDO)

  2. Promotion of the formation of environmentally friendly energy community (FY 2000). Demonstration of the gas turbine repowering waste combined power generation technology; 2000 nendo kankyo chowagata energy community keisei sokushin seika hokokusho. Gas turbine repowering haikibutsu fukugo hatsuden gijutsu jissho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Demonstrative operation was conducted of the super waste power generation system in which the low temperature steam generated in waste incinerator is raised in temperature using the combustion exhaust gas emitted after the power generation using another gas turbine for conducting the steam turbine power generation with high efficiency. The FY 2000 results were summed up. In the demonstrative operation, operation and data acquisition/analysis were conducted following the previous fiscal year by 25MW class gas turbine repowering waste combined power generation facilities (Takahama power plant). Further, four years after the start of operation, the secular variation was studied by disassembly/inspection of equipment. As a result of the operation, the thermal efficiency was approximately 35%, much higher than the existing waste power generation. It was verified that the power system was maintained by the same maintenance as that of the ordinary power system. Moreover, the important point of this system is that no special corrosion resistant materials are used and that the high-efficiency waste power generation was demonstrated by combining the existing equipment. It can be said that the super waste power system has high qualities for forming energy community as a regionally dispersed stabilized power source. (NEDO)

  3. Research and development of the industrial basic technologies of the next generation, 'composite materials (metal-based)'. Evaluation of the second phase research and development; Jisedai sdangyo kiban gijutsu kenkyu kaihatsu 'fukugo zairyo (kinzoukei)'. Dainiki kenkyu kaihatsu hyoka

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1986-03-31

    The results of the second phase research and development project for developing the metal-based composite materials as the basic technologies of the next generation are evaluated. For development of highly functional materials, the efforts are directed to modification of PAN-based high-strength carbon fibers for aluminum-based FRMs, and also to development of the methods for controlling interfacial reactions at high temperature by modification of the base materials for titanium-based FRMs. For development of carbon fiber-based intermediate materials, the techniques are developed for continuous production of wire preforms of aluminum. For development of molding/processing techniques, the press molding and powder HIP molding techniques are developed to give a planar product of the FRM of titanium alloy reinforced with evaporated filaments of silicon carbide, which shows an average tensile strength exceeding the target level. Also developed are the press and roll molding techniques for the wire preforms of aluminum reinforced with silicon carbide fibers, the planar product therefrom showing a tensile strength of at least 99% of the base material. It is concluded that the objectives of the second-phase project are almost achieved. (NEDO)

  4. Development of hydriding alloys with multi-functionally-graded properties and their applications to energy conversion devices; Keishagata fukugo kino wo hyomen ni motsu suiso kyuzo gokin no kaihatsu to energy henkan gijutsu eno oyo

    Energy Technology Data Exchange (ETDEWEB)

    Suda, S; Kadoma, H; Nagamoto, H; Okura, T [Kogakuin University, Tokyo (Japan)

    1997-02-01

    This paper describes the formation of fluoride layer on the surface of hydriding alloys. The fluoride formation reaction consists of a reduction removal process of surface oxide and a fluorination process. Specific surface area of alloy grains can be increased by the hydrogenation reaction in the surface layer accompanied with the removal of surface oxide, which results in easier permeation of molecular hydrogen into fluoride layer. During the fluorination process, a large amount of Ni in the alloy components is eluted, which results in the reduction of Ni distribution immediately under the fluoride layer in the alloy. Consequently, collector sites near the surface are reduced, and conductivity among alloy grains is degraded. To enhance the hydrogen collector sites, specific surface area of alloy grains can be increased by controlling the pH value of fluorination treatment solution in a given range. Moreover, performance of fluoride layer can be advanced by electrochemically dispersing metal Ni in the fluoride layer using Ni complex ion mixed in the treatment solution. 2 refs., 3 figs.

  5. Research and development of basic technologies for next generation industries, 'composite materials'. Evaluation on final research and development (final report); Jisedai sangyo kiban gijutsu kenkyu kaihatsu. Fukugo zairyo (saishu kenkyu kaihatsu hyoka 3)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1989-05-01

    This paper carries the specifications for advanced composites in the investigation (SACOI), and lists the titles and organizations and persons in charge. The paper describes the specifications for test and measurement methods for each title. The titles are: testing methods of matrix resins for carbon fiber reinforced plastics, measurement method for thermogravimetry and glass transition temperature for the same plastics, measuring methods for specific gravity, fiber and void contents of carbon fiber reinforced plastics, testing methods for tensile properties, compression properties, apparent interlaminar shear strength, tension fatigue, interlaminar fracture toughness, crack propagation, high velocity impact, izod impact, and environmental resistance for the same plastics, evaluation methods for hot-press formability of prepreg, autoclave formability of prepreg for the same plastics, measuring methods for tex count, density, and fiber volume fraction of wire preform, testing methods for tensile strength at room temperature, tensile strength at elevated temperature of wire preform, measuring methods for thermal expansion coefficient, tension properties, compression properties, tensile shear strength, interlaminar shear strength, in-plane shear strength, tensile fatigue, high velocity impact and regular impact of wire preform. (NEDO)

  6. Fiscal 1991-1993 summary report on R and D on new forming technology of composite materials; Fukugo zairyo shinseikei gijutsu no kenkyu kaihatsu 1991 nendo - 1993 nendo sokatsu hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-09-01

    Developed were the materials which can be easily formed by manifesting superplasticity simultaneously with high toughness and high strength through selection of material composition and micronizing of the structure, in regard to composite materials answering to high strength and resistance to high temperature suitable for engines or the like. Developed for ceramic matrix composite materials were composite technology of silicon nitride matrix composites by a casting method, composite technology of Al{sub 2}O{sub 3}/TiC matrix composites by a material preparation method using aqueous slurry, and superplastic forming technology of yttria stabilized zirconia/alumina matrix composites; developed for metallic matrix composite materials were composite technology of reinforced ceramics particulate aluminum alloy matrix composites by a voltex method, composite technology of ceramic short fibers reinforced aluminum alloy composites by a high pressure casting method under reduced pressure, composite technology of titanium matrix composites by a mechanical alloying method, and composite technology of aluminum alloy composites by ceramics particles, superplastic forming technology of SiC whisker reinforced aluminum alloy reinforced composites, and superplastic forming technology of aluminum alloy matrix reinforced composites reinforced by SiC particles. (NEDO)

  7. FY 1999 report on the results of the project on the industrial science technology R and D. R and D of complex carbonhydrate production/utilization technology (Development of CO2 fixation/effective utilization technology by applying complex carbonhydrate); 1999 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo. Fukugo toushitsu seisan riyo gijutsu no kenkyu kaihatsu (Fukugo toushitsu oyo nisankatanso koteika yuko riyo gijutsu kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    For the purpose of making an industrial use of complex carbonhydrate performing an important function in substance recognition, etc., which cannot be realized by only nucleic acid, protein and lipid, the R and D of the basic technology related to the production/utilization were conducted, and the FY 1999 results were reported. In the study of synthesis/utilization/remodeling technology of complex carbonhydrate using the chemical synthesis method, the R and D were made not only on the synthesis of sugar chain but for the synthesis method of the peptide added with sugar chain, that is, glycopeptide. Further, as to the reaction with the aim of the application, there was hope for large-quantity synthesis of milk oligosaccharide by the oxygen method. In the study of the design technology of complex carbonhydrate molecules, the systematical analysis using the model glycopeptide was conducted of effects of the sugar chain addition part and sugar chain structure on the 3D structure and physiological activity. Concerning the synthesis/utilization/remodeling technology of complex carbonhydrate using the biological method, study was made of the animal cell utilization, microorganism utilization, technology of structural analysis of complex carbonhydrate, etc. (NEDO)

  8. Report on the results of research and development under a consignment from NEDO of glycoconjugate production utilizing technologies. Development of technologies to fix and effectively utilize carbon dioxide by applying glycoconjugates; 1997 nendo sangyo kagaku gijutsu kenkyu kaihatsu jigyo Shin energy Sangyo Gijutsu Sogo Kaihatsu Kiko itaku. Fukugo toshitsu seisan riyo gijutsu no kenkyu kaihatsu (fukugo toshitsu oyo nisanka tanso koteika yuko riyo gijutsu kaihatsu) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    This paper reports research results in fiscal 1997 for the `research and development of glycoconjugate production utilizing technologies`. In synthesizing, utilizing and remodeling technologies for glycoconjugates by means of chemical synthesis, studies were performed on developing methods to synthesize Gal {beta}1-3Gal NA(c {alpha})1-0-Serine in preparative scale, synthesizing high mannose type sugars of natural type without protection groups, and linking GlcNA or GalNAc onto partial peptide of fibroblast growth factor (FGF). In synthesizing, utilizing and remodeling technologies for glycoconjugates by using biological methods, studies were carried out, with regard to glycoconjugate synthesizing, utilizing and remodeling technologies utilizing animal cells, on identifying sugar structures of IFN-{gamma} produced from CHO cell line, and isolating CHO cell lines introduced with genes of sugar transferred enzyme GnTIV and/or GnTV. Furthermore, studies were conducted on glycoconjugate synthesizing, utilizing and remodeling technologies utilizing microorganisms, and glycoconjugate structure analyzing technologies. In addition, overall investigation was made on glycoconjugate production utilizing technologies. 113 refs., 76 figs., 18 tabs.

  9. Achievement report for fiscal 1998 on research and development of multifunction members structure control technologies. Development of advanced surface treatment technologies for methane-fueled aero engines (1. Microstructure control technologies for ultrahigh temperature members); 1998 nendo fukugo kino buzai kozo seigyo gijutsu no kenkyu kaihatsu. Methane nenryo kokukiyo engine buzai no kodo hyomen kako gijutsu kaihatsu (chokoon buzai mikuro kozo seigyo gijutsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The carbon fiber reinforced carbon composite materials (C/C composites) strong at ultrahigh temperatures are taken up. So as to improve on its resistance to oxidation, corrosion, and abrasion as well as on its strength at ultrahigh temperatures, an ion engineering-assisted technique is used to reform the C/C composite surface layer and a technology is developed for thin coating formation on the C/C composite surface. Next, technologies are developed for multifunction coating formation on top of the surface, for defect prevention or removal from the C/C composite, and for adhesion enhancement between the C/C composite fibers and the matrix. Technologies are further developed for evaluating hostile environment withstanding capabilities at ultrahigh temperatures. In this fiscal year, in the study of microstructure controlling multilayer coating technologies, development is conducted of technologies of ion engineering-assisted surface control and reform and of technologies of forming multifunctional coatings high in reliability and resistance to corrosion. In the field of microstructure control composition, 3-dimensional carbon fiber reinforced carbon composite materials are manufactured by way of trial and evaluated, and their behavior under rigorous conditions is evaluated. (NEDO)

  10. Achievement report on research and development of the industrial basic technologies of the next generation in fiscal 1985. Research and development of composite materials (Separate edition (1)); 1985 nendo jisedai sangyo kiban gijutsu itaku kenkyu seika hokokusho. Fukugo zairyo no kenkyu kaihatsu (bessatsu 1)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1986-03-01

    Described herein are the results of the research and development project for developing composite materials as the basic technologies of the next generation, for patent/utility application situations, know-how techniques, processing procedures, computer code lists, and database/file lists. A total of 81 inventions are applied for patents and 3 inventions for utilities, of which 8 inventions are applied to the foreign countries. The know-how techniques developed by the project include basic testers for continuous molding of closed sections, systems for continuously withdrawing the molded articles, hot rolling molding processes which use no rolling jigs, and HIP processes for aluminum-based powders. A total of 10 processing procedures are drawn, including those for monolithic molding of panel structures, monolithic molding of planar and angled PGI/CF, production of carbon fiber/aluminum-based wire reforms, pressing, rolling, HIP molding, and melt/extrusion molding. The computer code lists include strength/rigidity/vibration optimization programs, buckling optimization programs, and impact analysis/two-dimensional of the composite materials. (NEDO)

  11. Formation of fine aggregate structure by solid-state displacement reaction of Ti with CoO or NiO. CoO oyobi NiO to Ti kan no koso chikan hanno ni yoru bisai fukugo soshiki no seisei

    Energy Technology Data Exchange (ETDEWEB)

    Taimatsu, H; Kaneko, H [Akita Univ., Akita (Japan). Mining College; Wada, K [Akita Univ., Akita (Japan). Graduate School

    1992-09-20

    As a result of search for systems which have aggregate structures, the displacement reaction products of Ti with CoO or NiO are found to have aggregate structures in which the produced oxides and metals are entangled with each other. The displacement reaction of Ti with CoO or NiO is investigated at the temperature of 1273K. In the reaction of either couple, aggregate products are produced, and reacted layer is observed in the TiO2 matrix wherein Co or Ni phases are three dimensionally entangled in finely dispersed state of micron order. 2 layers of cavitated and dense TiO2 layers are found in the reacted layer. The thicknesses of the reacted layer are not constant according to locations, but thick portions are grown obeying the parabolic rate law. As a result of the study on the possibility of fabricating cermet by the reaction between powders, finely mixed characteristic structures are found to be easily obtained using systems which can produce aggregate structures. 24 refs., 9 figs.

  12. Structure and hardness of TiAl-TiB2 composite prepared by hot isostatic pressing of mechanically alloyed powders. Mekanikaru aroingu funmatsu no HIP shoketsu ni yori sakuseishita TiAl/TiB2 fukugo zairyo no soshiki to kodo

    Energy Technology Data Exchange (ETDEWEB)

    Sato, T; Shimakage, K [Muroran Inst. of Technology, Hokkaido (Japan). Faculty of Engineering; Miyakawa, S [Muroran Inst. of Technology, Hokkaido (Japan). Graduate Student

    1992-11-20

    The practical application of Ti-Al system intermetallic compounds is expected as an advanced light heat resistant material. TiAl group out of them, as for the specific strength, has an equivalent maximum working temperature as that of the nickel base alloy, which is utilized as a turbine material for the current aircraft, and moreover it is also said that it is superior in the creep and rupture properties to the latter. In this study, by mechanical alloying (MA) of each mixed powder of Ti-Al and Ti-B, by suing heptane as a grinding aid, each MA powder of the amorphous TiAl containing carbon and extremely fine compound TiB2 were prepared, and subsequently the true density sintering by the hot isostatic pressing (HIP) was performed, and by doing these, the preparation of TiAl/TiB2 system composite material with a high composite ratio of TiO2 was tried. Consequently, by the MA treatment of the mixed powder of Ti and B for more than 50 hours, the compound powder of TiB2 mixed with TiB could be prepared, and its hardness has shown the maximum value Hmv=l200 with a composition of TiAl/25 mol % TiB2. 14 refs., 10 figs., 2 tabs.

  13. FY 1995 development of fluorinated hydriding alloys with multi functional and functionally-graded surface and their application to energy conversion devices; 1995 nendo keishagata fukugo kino wo hyomen ni motsu suiso kyuzo gokin no kaihatsu to energy henkan gijutsu eno oyo

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    The project is the extended researches of a fluorination technique invented by the project leader (Suda) for improving the surface properties and characteristics of conventional hydriding alloys from the following viewpoints; (1) To investigate the roles of fluorinated surface during hydrogen uptake both in the gas-solid and the electrochemical reactions. (2) To elucidate the factors which increase the protective nature of the surface. (3) To develop a material design procedure for synthesizing thin layer of functionally graded surface which is composed of metallic Ni and the fluoride compound. (1) An advanced fluorination technique was developed to incorporate metallic Ni in the surface fluoride layer. (2) Metallic Ni was successfully distributed in a functionally graded manner in the Surface fluoride layer. (3) Through the technique developed, the following properties and characteristics were successfully donated in the fluorinated hydriding alloys such as AB{sub 5}, AB{sub 2}, and AB; (3-1)Surface oxides which act as the resistant layer to the hydrogen up take was completely eliminated to result in the enhancement of the initial activation characteristics. (3-2) Hydrogen selectivity and permeability was greatly improved. (3-3) Surface protective nature against the impurity gases and contaminants was significantly improved. (3-4) Initial activation characteristics both in the gas-solid and the electrochemical reactions were distinguishably improved. (3-5) Fluorinated surface was found to function as the catalyst for a methanation reaction between the CO{sub 2} gas adsorbed over the fluorinated surface and the monatomic hydrogen absorbed in the metal lattice of the crystalline structure of the hydriding alloys. (4) A technique was developed for increasing the specific surface area and decreasing the specific surface diameter of the fluorinated hydriding alloy articles. (NEDO)

  14. Fiscal 1998 industrial science and technology R and D project. Research report on R and D of genome informatics technology (Development of stable oil supply measures using complex biosystem); 1998 nendo genome informatics gijutsu kenkyu kaihtsu seika hokokusho. Fukugo seibutsukei riyo sekiyu antei kyokyu taisaku kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    This report describes the fiscal 1998 result on development of genome informatics technology. As comparative analysis technique of genes, the combination of electrophoresis and PCR was used. For improvement of the throughput and reproducibility of the technique, module- shuffling primers were used, and the multi(96)-arrayed capillary fragment analyzer was devised. The system detecting SNPs rapidly was also developed successfully. As analysis technology of DNA sequence by use of triple- stranded DNA formation, study was made on construction of long cDNA libraries, selective subtraction of specific sequences from libraries, and the basic technology of homologous cloning. Study was also made on each reaction step of IGCR technique for fast analysis, and specifications of a fluorescence transfer monitor. As modeling technique of genetic sequence information, the simulation model was developed for gene expression regulatory networks during muscle differentiation, and feedback regulation of period genes. Such support systems as transcription factor prediction and gene regulatory network inference were developed from existing data. (NEDO)

  15. Developments of DPF systems with mesh laminated structures. Performances of DPF systems which consist of the metal-mesh laminated filter combustion with the alumina-fiber mesh, and the combustion device of trapped diesel particles; Mesh taso kozo no DPF no kaihatsu. Kinzokusen to arumina sen`i mesh ni yoru fukugo filter to filter heiyo heater ni yoru DPF no seino

    Energy Technology Data Exchange (ETDEWEB)

    Kojima, T; Tange, A; Matsuda, K [NHK Spring Co. Ltd., Yokohama (Japan)

    1997-10-01

    For the purpose of continuous run without any maintenance, new DPF (diesel particulate filter)systems laminated by both metal-wire mesh and alumina-fiber mesh alternately, are under the developments. The perfect combustion of trapped diesel particulate can be achieved by a couple of the resistance heating devices inserted into the filter. 5 refs., 7 figs., 3 tabs.

  16. FY 2000 report on the research cooperation project - Research cooperation in developmental support for oil producing countries. Development of the new field of usage of Orinoco oil for fuel of gas turbine combined power generation; 2000 nendo san'yukoku kaihatsu shien kenkyu kyoryoku jigyo seika hokokusho. Gasu tabin fukugo hatsuden nenryo muke Orinoko oil no shin yoto kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-09-01

    For the purpose of spreading the usage of Orinoco crude oil which is suffering from sluggishness in the export and heightening the economical efficiency in Venezuela, research cooperation was made for a project for reduction of the power cost and environmental loads in Japan by producing the advanced gas turbine use fuel oil from Orinoco oil and exporting it to Japan. In this project, conducted were the technical verification that the gas turbine use fuel oil (GTF) can be produced from Orinoco oil and the economical verification based on the result thereof. As a result of the technical verification, it was confirmed that from the Orinoco crude oil which is heavy, high in sulfur and high in heavy metal concentration, a refined oil satisfying the following properties of the advanced gas turbine fuel oil could be trial-produced using the distilling unit, SDA unit, desulfurizer and de-metaling unit: vanadium concentration: 0.5 wtppm or below; sodium + potassium concentration: 1.0 wtppm or below; viscosity: 20 cSt or below at 135 degrees C. Further, from the economical verification, the good result was obtained that the price was lower than the LNG price and the domestic price of A heavy oil/C heavy oil. (NEDO)

  17. Study on fabrication methods of composite structures (1st. report); Joule effect curing of CFRP composite structures and its application to bonding and repair. Fukugo zai kozo no seikei kako ho ni kansuru kenkyu (Dai 1po); CFRP kozo no Joule koka wo riyo shita cure ho to setsugoter dot hoshu e no oyo ni tsuite

    Energy Technology Data Exchange (ETDEWEB)

    Moriya, K. (The National Defense Academy, Kanagawa (Japan))

    1990-07-05

    A method for curing CFRP composite structures by using Joule effect is presented. Due to the presence of fiber to fiber contact, CFRP composites and their prepregs exhibit electrical conductivity in the direction transverse to fibers as well as in the fiber direction, and they can be considered as electrically homogeneous on a gross scale. Therefore, passing an electric current through a CFRP prepreg, it is self-heated due to the Joule effect. Feedback current control maintains the prepreg temperature at a desired level and makes the prepreg be cured by a specified cure cycle. Experimental verifiactions have been carried out to demonstrate the feasibility of the present technique. The applications to the bonding of CFRP components and to the patch repairs of effective CFRP structure are also described. 12 refs., 12 figs.

  18. Fiscal 1993 achievement report on next-generation industrial structure technology. Research and development of advanced materials for extreme environments (Research and development of advanced composite materials using oil as raw material); 1993 nendo chotaikankyosei senshin zairyo no kenkyu kaihatsu seika hokokusho. Sekiyu genryokei senshin fukugo zairyo no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    There was a progress in the development of oil based C/C (carbon/carbon) composite technology. Studied in a comprehensive endeavor were coordination between various technology developing activities, surveys of trends of relevant technologies, and technological tasks to discharge for the development of materials usable under extreme environments. Technologies developed for advanced composite materials involved (1) oil pitch derived random structure carbon fibers, (2) oil pitch derived onion structure carbon fibers, and (3) oil pitch derived double structure carbon fiber/carbon based matrix composite materials. Under item (1), random structure carbon fibers were examined for high reproducibility of physical properties, continuous surface coating technology for fibers, and weavability. Under item (2), onion structure carbon fibers were studied for development into C/C composite reinforced fibers. Under item (3), the mechanical structure of double structure carbon fibers was clarified, and C/C composite materials were fabricated using experimental prepregs worked out after studying matrix composition and impregnation techniques. (NEDO)

  19. FY 1991 report on the results of the development of the entrained bed coal gasification power plant. Part 1. Element study/investigational study of technology/study of the integrated coal gasification combined cycle power system; 1991 nendo seika hokokusho. Funryusho sekitan gaska hatsuden plant kaihatsu - Sono 1. Youso kenkyu hen, gijutsu chosa hen, sekitan gaska fukugo hatsuden system kento hen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-01-01

    For the purpose of establishing the technology of integrated coal gasification combined cycle power generation, the following were conducted: element study of a 200t/d entrained bed coal gasification pilot plant, survey of technology of the coal gasification power generation, study of the practical scale IGCC, etc. The FY 1991 results were summarized. In the gasification test using 2t/d furnace equipment, evaluation test on the test coal for pilot plant was made. In the study of gas turbine combustor for demonstration machine use, measuring duct was fabricated for measurement of combustion gas temperature/pressure, etc. In the simulational study of the total system of combined cycle power generation, review/modification of part of the simulation model and detailing of the model were conducted by comparison with the data on pilot plant operation. In the technology study, joint technology conferences were held for discussions between Japan and Australia, Japan and the U.S., and Japan and Canada. As to the practical scale IGCC, the initially planned output capacity and thermal efficiency were studied based on the knowledge/information obtained through the R and D on the 200t/d pilot plant. (NEDO)

  20. Effects of Al and Mn, alone and in combination, on growth and nutrient status of red pine seedlings hydroponically grown in nutrient culture solution; Suiko saibaishita akamatsunae no seicho oyobi eiyo jotai ni taisuru Al to Mn no tandoku oyobi fukugo eikyo

    Energy Technology Data Exchange (ETDEWEB)

    Lee, C.; Izuta, T.; Aoki, M.; Totsuka, T. [Tokyo University of Agriculture and Technology, Tokyo (Japan). Faculty of Agriculture

    1997-09-10

    Experiments have made clear the effects of Al and Mn on growth of red pine seedlings hydroponically grown. Analysis was performed on components of plants grown in culture solution into which Al and Mn were added alone or in combination. Photosynthesis velocity and dark respiration velocity of the seedlings were measured when they have fully grown. The following results were obtained: the Al addition reduces dry seedling weight, the T/R ratio (T is dry weight of a seedling above the ground and R is that under the ground) decreases as the addition amount is increased, and the photosynthesis velocity decreases; Al accumulates in roots reducing physiological function of the roots and concentrations of Ca and Mg; the dry weight decreases with increasing Mn addition, but does not affect the T/R ratio; the Mn addition reduces the photosynthesis velocity lowering chlorophyll content in needle leaves; the dark respiration velocity decreases as the Mn amount is increased, but does not affect that for trunks; Ca and Mg concentrations decrease in the trunks and roots; no significant compound effects of Al and Mn are recognized, and the effects are additive; and the concentration at which growth decrease appears is 10 ppm or higher for Al and 60 ppm or higher for Mn. 32 refs., 2 figs., 11 tabs.

  1. Fiscal 1993 report on technological results. R and D on new forming technology of composite materials (Development of innovative technology for producing members for high efficiency power generation); 1993 nendo fukugo zairyo shinseikei gijutsu no kenkyu kaihatsu seika hokokusho. Kokoritsu hatsuden'yo buzai sosei gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    A forming technology was developed which uses superplasticity of composite materials, i.e., high-functional materials for power generating equipment for example. Activities were conducted in the three areas of (1) ceramic based composite materials, (2) development of metal-based composite forming technology, and (3) comprehensive investigation and adjustment. In (1), with a view to finding a composite forming technology, in which high tenacity materials are obtained by evenly dispersing particles or whiskers as reinforcements in a matrix, a room temperature forming technique using fine particles was exploited, as were a high temperature forming technique using fused bodies and a possibility of manifestation of superplasticity in the prepared composite materials. The materials used were Si{sub 3}N{sub 4} matrix-SiC, Al{sub 2}O{sub 3} matrix-TiC, and glass matrix composite based materials filling ceramics in fine holes of porous glass. In (2), composite forming technologies were examined for such composite materials as Al alloy matrix-SiC particulate-based by a molten metal stirring method, Al alloy matrix-ceramics short fiber-based by a high pressure forging method, Ti alloy matrix-ceramics particulate-based by a mechanical alloying method, and Al alloy matrix-ceramics particulate-based by an alkoxide method/powder metallurgy method. (NEDO)

  2. Fiscal 1991 achievement report on next-generation industrial structure technology. Research and development of advanced materials for extreme environments (Research and development of advanced composite materials using oil as raw material); 1991 nendo chotaikankyosei senshin zairyo no kenkyu kaihatsu seika hokokusho. Sekiyu genryokei senshin fukugo zairyo no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1992-03-01

    Development of oil based C/C (carbon/carbon) composite technology was carried out. In a comprehensive survey, studies were conducted of the trends of associated technologies and tasks to discharge for the development of materials usable under ultrahigh temperature environments. For the development of advanced composite materials, efforts were exerted to develop technologies in the three fields of (1) oil pitch derived random structure carbon fiber/carbon based matrix composite materials, (2) oil pitch derived onion structure carbon fiber/carbon based matrix composite materials, and (3) oil pitch derived double structure carbon fiber/carbon based matrix composite materials. In Field (1), physical properties and the like of a specimen fiber were clarified by studying conditions for manufacturing random structure carbon fibers, and the specimen was provided with a surface coating for the study of oxidation resisting performance improvement. In Field (2), onion structure carbon fiber forming conditions and basic technologies for structure manifestation were established, and basics of fiber surface coating technology were studied. In Field (3), double structure carbon fiber forming conditions were studied, specimen fabrication was carried out, and fiber surface coating technology was studied. (NEDO)

  3. FY 1999 report on the results of the R and D of genom informatics technology. Development of measures for stabilized supply of petroleum using compound living organisms; 1999 nendo genom informatics gijutsu kenkyu kaihtsu seika hokokusho. Fukugo seibutsukei riyo sekiyu antei kyokyu taisaku kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    In this R and D, studies were made on the following: 1) comparative analysis of genes - a system based on PCR coupled with high-speed and high-throughput fragment analyzer; 2) development of the system which detects SNPs rapidly; 3) study of the technique for DNA analysis and comparison of DNA sequence by use of the triple-stranded DNA formation; 4) improvement of a genomic DNA subtraction method, the In-Gel Competitive Reassociation technique; 5) development of computer simulation system which has capability of predicting changes in gene expression; 6) development of a workbench system assisting at gene regulatory network construction; 7) analysis of a gene expression control network; 8) general R and D issues. In 1), PCR method was developed to confirm the principle. In 2), micro plant was developed. In 3), new long cDNA library was constructed. In 4), basic experiment on FRET technology was conducted. In 5), basic model was developed of clock gene expression oscillation simulation. In 6), system was developed of gene information subtraction. In 7), workbench was designed for support of transcription control network analysis. (NEDO)

  4. Fiscal 1999 achievement report. Important regional technology research and development--Research and development of eco-tailored tribo-material creation process technology (High-order composite structure material creation process technology); 1999 nendo eco tailored tribo material sosei process gijutsu seika hokokusho. Koji fukugo kozo material sosei process gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    Research and development is carried out for the creation of tribo-materials light in weight and free of harmful substances for the manufacture of brakes and rolling bearings for transportation equipment. In the study of the manufacture of tribo-materials by the powder sintering process, various intermetallic compound powers of Fe, Ti, and Al are prepared and sintered by the mechanical alloying method and the gas atomization method, and the compounds are examined for mechanical and tribological properties. In the study of the melting method, different specimens of the same alloy are melted and cast using high frequency, plasma arc, etc., and their mechanical properties and tribological properties are measured. In the study of the manufacture of brake disk materials and the manufacturing process, a small high-temperature abrasion tester is experimentally built and installed, and friction test materials free of Cu and Sb, suitable for the construction of light-weight rotors, are manufactured and tested for abrasion. In the study of the manufacture of materials for roller bearings and the manufacturing process, candidate materials are selected, pulverized by gas atomization, mechanical alloying, etc., and then sintered, and are tested for their bonding capability. (NEDO)

  5. FY1998 results report on the priority area research and development of 'innovative processing technologies for producing ecologically tailored tribo-materials'. Innovation processing technologies for producing high-order composite structured material; 1998 nendo eco tailored tribo material sosei process gijutsu seika hokokusho. Koji fukugo kozo material sosei process gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    With research and development conducted for the purpose of improving performance of tribology-related parts in outdoor industrial equipment and transportation machinery, the results for fiscal 1998 were summarized. In the trial manufacturing of tribo-materials by a powder metallurgical method, since Fe-Ti-Al based intermetallic compound was promising, four kinds of powder samples were manufactured by mechanical alloying. Tribo-materials by a melting and casting method were also manufactured using the same samples and found to be inferior to the powder sintered materials in dynamic properties. In the evaluation of trial manufacturing of materials for brake disks, the result of measurement on abrasion loss and a friction coefficient by a high temperature abrasion tester revealed that Ti-Al based alloys were promising as composition metal. In the examination of the trial manufacturing of materials for bearings, in dealing with high loading of bearings, investigations were conducted on the physical properties of a low carbon steel backing with heating and rolling applied as well as on overlay materials. For materials for bearing alloys, Cu based powders were examined which were manufactured by a gas atomizing method. (NEDO)

  6. Fiscal 1990 achievement report on next-generation industrial structure technology. Research and development of advanced materials for extreme environments (Research and development of advanced composite materials using oil as raw material); 1990 nendo chotaikankyosei senshin zairyo no kenkyu kaihatsu seika hokokusho. Sekiyu genryokei senshin fukugo zairyo no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1991-03-01

    Efforts were made to develop technologies of oil based C/C (carbon/carbon) composites. In a comprehensive survey, studies were conducted of the trends of associated technologies and tasks to discharge for the development of materials usable at ultrahigh temperatures. For the development of advanced composite materials, efforts were exerted to develop technologies in the three fields of (1) oil pitch derived random structure carbon fiber/carbon based matrix composite materials, (2) oil pitch derived onion structure carbon fiber/carbon based matrix composite materials, and (3) oil pitch derived double structure carbon fiber/carbon based matrix composite materials. In Field (1), random structure fiber manufacturing conditions were studied, basics of their relations with fiber thermal properties and the like were understood, carbon fibers were provided with surface coating, and studies were made to enhance the oxidation resistance of carbon fibers. In Field (2), fiber forming conditions were studied and their relations with fiber physical properties, such as strength, in an oxidizing atmosphere were grasped. In Field (3), manufacturing conditions and their relations with fiber physical properties were learned, and a technology was developed to manufacture composite rods. (NEDO)

  7. Development of reader for the demand data from compound demand meter for power supply/demand (CDM). Development of recommended tools for load leveling in existing works; Denryoku jukyuyo fukugo keiki kara no demand data yomitori sochi no kaihatsu. Kisetsu kojo no fuka heijunka suisho tool no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    Sakamoto, S. [Kansai Electric Power Co. Inc., Osaka (Japan)

    1997-10-10

    Kansai Electric Power has developed a system which reads the demand data for 30min. stored in the compound demand meter for power supply/demand (CDM), and prints the load curves. It is for customers of high-voltage power of less than 500kW, where load management is less extensive than that in larger users, for initial consulting on improvement of load factor (recommendation of heat storage contracts). It is to be installed on the spot to display the load curves, to allow the expert visiting the site to issue initial proposals immediately. It displays `daily demands by time zone` instead of `monthly power consumption` previously provided, and makes the graph of demands by time zone. It is designed to be compact, light, and easily and safely handled. The field test results indicate that the system can be sufficiently practical with the major performance items. 4 figs., 1 tab.

  8. Achievement report for fiscal 1997 on the development of technologies for utilizing biological resources such as complex biosystems. Development of technologies for producing substitute fuel for petroleum by utilizing organisms; 1997 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Seibutsu riyo sekiyu daitai nenryo seizo gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    Technologies of producing useful substances using the substance decomposing/producing functions of complex biosystems and methods of their handling are developed. In the utilization of microbes in the digestive tracts of termites and longicorns, it is made clear that several kinds of termites cleave the {beta}-O-4 ether linkage. In relation to technologies for wood decomposing complex microbial system construction and complex vector system development, a screening system is constructed in which strains that exhibit complex actions are combined. Concerning the advanced utilization of tropical oil plants, conditions are determined for inducing callus out of oil palm tissues. Out of oil palm sarcocarp tissues, mRNA (messenger ribonucleic acid) is isolated for the construction of a cDNA (complementary deoxyribonucleic acid) library. For the purpose of isolating a powerful promoter, a partial base sequence is determined for ubiquitin that frequently expresses itself in cells. A pathogenic bacterium ailing the oil palm is sampled for identification, and it is inferred that the bacterium is a kind of Ganoderma boninense. (NEDO)

  9. Fiscal 1997 report on the results of the international standardization R and D. R and D of the basic evaluation method of functional composite particles; 1997 nendo seika hokokusho kokusai hyojun soseigata kenkyu kaihatsu. Kinosei fukugo biryushi no kibanteki hyoka hoho no kenkyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The paper established the basic evaluation method of composite particles manifesting functions which the existing mono-componet particles do not have and aimed at the international standardization of the measuring method of them. To be concrete, the development was studied of methods to evaluate the mechanical bonding state of different composition in composite particles, the chemical bonding state of different composition and the electromagnetic state of the surface of composite particles. As a result, in the evaluation method of the mechanical bonding state of different composition in composite particles, methods to evaluate the bonding state and the large composite bonding state of the coated particle layer were developed to clarify the details to be standardized for each method. In the evaluation method of the chemical bonding state of different composition in composite particles, the electronic energy loss spectroscopy was an effective method to evaluate the chemical bonding state in composite particles of oxide ceramics. Further, in the evaluation method of the electromagnetic field of the surface of composite particles, standard experimental procedures for observing the electromagnetic field by interference of electronic waves were proposed, and the evaluation of the electromagnetic field state of composite particles used ranging from low temperature to high temperature was made possible. 41 refs., 85 figs., 14 tabs.

  10. FY 1997 report on the results of the industrial technology R and D project. Development of technology to use biological resources such as the complex biological system (Development of biological use petroleum substitution fuel production technology); 1997 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Seibutsu riyo sekiyu daitai nenryo seizo gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    Experimental researches were conducted and the FY 1997 results were reported with the aim of establishing analytical technology for the complex biological system by which the complex biological system can be analyzed in such a state as it is using the molecular biological method. In the study of the molecular genetic analytical technology, PCR primers used for amplification of topoisomerase II genes of the whole eukaryote was designed. As to the histochemical analytical technology, a study was made on the new constitution microorganism detection method by the hybridization method and the antibody specific dyeing method, and the following were conducted: manifestation in quantity of colibacillus and the recovery, refining, and construction of peptide library by fuzzy display method. Concerning the functional analytical technology, technological researches were made such as the environmental adaptation mechanism of high thermophile and the information transfer mechanism among bacteria through cell membranes for elucidation of the special environment detection/response mechanism and the special environment adaptation/resistance mechanism. As to the separation/culture technology, various anaerobic microorganisms were separated from marine sponge for the development of a method of culturing in 3D matrices. (NEDO)

  11. FY 1992 Report on results of the research and development of the technologies for forming composite materials. Development of the technologies for creating parts for high-efficiency power generation systems; 1992 nendo fukugo zairyo shinseikei gijutsu no kenkyu kaihatsu seika hokokusho. Kokoritsu hatsuden'yo buzai sosei gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-03-01

    This project is aimed at development of the technologies for producing ceramic- and metal-based composite materials, and also technologies for superplastic processing by utilizing the phenomenon of superplasticity. The methods studied for development of the ceramic-based composites include casting and powder-utilizing forming at low temperature, and melt forming at high temperature. Those for the metal-based composites include melting at normal and high pressure, powder metallurgy type mechanical alloying and alkoxide methods. The composites studied for development of the superplastic processing are the whisker- and particle-reinforced ones. The composite reinforced with silicon nitride/SiC whiskers is found to be electrophoretically cast to have a bending strength of 497MPa at 1,250 degrees C. The parts of simple shape, e.g., rod and disk, having the target strength are produced by isostatically pressing at normal temperature and high pressure (CIP) and subsequently firing the granules, produced by spray drying the TiC particle/alumina-based slurry. (NEDO)

  12. Fiscal 1989 achievement report on next-generation industrial structure technology. Research and development of advanced materials for extreme environments (Research and development of advanced composite materials using oil as raw material); 1989 nendo chotaikankyosei senshin zairyo no kenkyu kaihatsu seika hokokusho. Sekiyu genryokei senshin fukugo zairyo no kenkhyu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1990-03-01

    The research and development of advanced composite materials succeeds the composite material development project initiated in fiscal 1981, and activities were conducted in the two domains of advanced composite material development and comprehensive survey implementation. In the comprehensive survey, trends of associated technologies were investigated, and technical tasks were studied relative to the development of advanced materials. In the effort to develop advanced composite materials, activities were conducted in the three fields of (1) oil pitch derived random structure carbon fiber/carbon based matrix composite materials, (2) oil pitch derived onion structure carbon fiber/carbon based matrix composite materials, and (3) oil pitch derived double structure carbon fiber/carbon based matrix composite materials. In Field (1), relations between conditions of forming carbon fibers out of pitch and carbon fiber random structure were elucidated, and development was started of technologies for providing fibers with oxidation resisting surface coatings. In Field (2), relations between conditions of forming carbon fibers out of pitch and carbon fiber onion structure were elucidated, and development was started of technologies for providing fibers with oxidation resisting surface coatings. In Field (3), efforts were started to elucidate oxidation resistance governing factors. (NEDO)

  13. Research on fabrication technology for thin film solar cells for practical use. Research on low-cost fabrication technology for large-area modules (Over-layered TCO on tempered glass for solar cell); Usumaku taiyo denchi seizo gijutsu no jitsuyoka kenkyu. Daimenseki module no tei cost seizo gijutsu (kyoka class fukugo tomei doden kiban seizo no gijutsu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    Tatsuta, M [New Energy and Industrial Technology Development Organization, Tokyo (Japan)

    1994-12-01

    This paper reports the study results on the fabrication technology of over-layered TCO on tempered glass in fiscal 1994. (1) On the fabrication technology of heat-resistant over-layered TCO, thermal deformation of TCO substrates was studied by both experiment and numerical computation. The thermal deformation increased with carrier concentration. As the observation result on change in lattice strain of heated TCO films by high-temperature X-ray diffraction, lattice strain was largely affected by thermal expansion. (2) On development of the low-temperature heat treatment method of TCO films, a technological prospect was obtained for fabrication of low-resistance TCO films by heat treatment without strength deterioration of tempered TCO substrates. (3) On development of cost reduction technology, the large-area CVD equipment was devised on the basis of the inline tempering method which tempers substrate glass by air cooling after formation of SnO2 film as fabrication method of tempered TCO. The TCO substrate tempered by air cooling could endure the drop test of 227g and 1.5m. 5 figs., 1 tab.

  14. FY 1998 report on the results of the development of the utilization technology of biological resources such as bioconsortia. Development of the petroleum substituting fuel production technology using biology; 1998 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Seibutsu riyo sekiyu daitai nenryo seizo gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    For the purpose of establishing the analysis technology and industrial utilization technology required for the establishment of the utilization technology of consortia's high functions which are already used in the fermentation technology field over the limit of the conventional bio-technology using functions of single biological species, study was made. As a part of the study, the establishment was aimed at of the high-grade utilization technology of seaweed/algae using the degradation/conversion functions of the consortium base and the useful substance production technology by interaction of the consortium base of organism and flora/fauna. Studies for the establishment of the technology were made in the following two fields: technology to use unused resources such as lignocellulose and technology to produce petroleum substituting useful resources. As to the technology to use unused resources, the establishment was proceeded with of the technology to degrade/convert the seaweed-origin acidic polysaccharide into the useful substance using the consortium system. In FY 1998, in search of the excellent microorganism consortia which can degrade/solubilize carageenan, samples were picked up from the underwater of the Republic of Palau and incubated in the flat culture medium. Thirty-eight kinds of the degraded bacterium group were acquired. Using the degraded bacterium group, {kappa}-carrageenan was degraded and analyzed of the products. (NEDO)

  15. Fiscal 1994 report on results of R and D on new forming technology of composite materials. Development of innovative technology for producing members for high efficiency power generation; 1994 nendo fukugo zairyo shinseikei gijutsu no kenkyu kaihatsu seika hokokusho. Kokoritsu hatsuden buzai sosei gijutsu kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-03-01

    Activities were conducted in the three areas of (1) R and D on ceramic matrix composite forming technology, (2) R and D on metallic matrix composite forming technology, and (3) comprehensive investigation and adjustment, for the purpose of developing materials that manifest superplasticity among ceramic and metallic matrix composites as well as developing the forming and fabrication technology and also of improving productivity by simplifying the fabrication processes. In (1), upon discovering that the superplastic properties of zirconia (3Y-ZrO{sub 2}) sold in the market is affected by the grain size and impurities (Al{sub 2}O{sub 3}) of the material, a zirconia was developed in which a trace of Al{sub 2}O{sub 3} and SiO{sub 2} were added, with a method detected capable of the fabrication through a low deforming stress. In (2), development was carried forward for a new high specific strength high-temperature material applicable to aircraft engines for example, as well as its forming and fabrication technology, by making a composite between metals and between metal and ceramics by a mechanical alloying (MA) method. Metalcarbide, nitride and oxide made by the MA method were sintered by hot press or the like, and a sintered material was thereby obtained that was superplastic and capable of the near net-shape forming. (NEDO)

  16. Study on the improvement of high temperature mechanical properties of carbon fiber reinforced ceramics composites through texture and interface controls; Tanso sen`i kyoka ceramics fukugo zairyo no soshiki kaimen seigyo ni yoru koon rikigaku tokusei kaizen ni kansuru kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    To improve the tenacity and reliability of ceramics, the fiber reinforced ceramics composites compounding high strength long fibers and ceramics have been investigated. In this study, carbon fibers were selected as reinforcement fibers. The hexagonal boron nitride (hBN) was selected as a matrix having the plastic deformation performance. To intend to control the composition of the fiber/matrix interface, composites were created by adding polysilazane which was an organic Si (Si3N4) source. Relationships between the condition of interface of each phase and the high temperature mechanical properties were examined by changing the fabrication condition, to grasp the technical problems, such as the optimization of fabrication condition. Knowledge on the fabrication of long fiber reinforced ceramics composites was obtained including the arbitrary control technology of interface consistency of ceramics composites for super high temperature structures. The carbon fiber reinforced hBN composites developed in this study have excellent strength up to 1,500 centigrade and fracture energy, and they are new prospective materials as well as C/C composites. 4 refs., 37 figs., 13 tabs.

  17. Report on the FY 1999 research survey of durability and life estimation of continuous fiber reformed ceramics base composites (CFCC); 1999 nendo renzoku sen'i kaishitsu ceramics ki fukugo zairyo (CFCC) no taikyusei to jumyo yosoku ni kansuru kenkyu chosa hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    The paper described the results of the FY 1999 research on continuous fiber reformed ceramics base composites (CFCC). As reinforced fiber, ZMI grade fiber was used. Polyzirconocarbosilane, raw material of that fiber, as matrices, was dispersed with zircon powder. The composite has remarkably more excellent heat resistance, oxidation resistance, corrosion resistance, and fracture resistance than metal, but so far there are seen no examples of the actual use. One of the causes is the shortage of the database for design of actual parts, especially, of the data on durability under actual environmental loads, and the reduction in reliability by a lack of life estimation technology. Accordingly, the basic experiments were carried out for the elucidation of environmental degradation and for the durability and development of life estimation technology. The experiments were made a step to the promotion of commercialization. As material form, minicomposite was used for unidirectional reinforcement for analytical convenience. Further, as a process to improve the durability of CFCC, minicomposite with glass seal put on was also evaluated. The experiments evaluated the residual strength after basic environmental exposure conditions, and the empirical formula for life estimation was proposed. (NEDO)

  18. Fiscal 2000 achievement report on the important regional technology research and development. Research and development of eco-tailored tribo-material creation process technology (Higher order composite structure material creation process); 2000 nendo juyo chiiki gijutsu kenkyu kaihatsu seika hokokusho. Eco tailored tribo material sosei process gijutsu (koji fukugo kozo material sosei process gijutsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Efforts are made to develop novel tribo-material creation processes through the application of an inclined constitution/structure control, a nonstoichiometric constitution control, or the like, to the manufacture of materials having excellent tribological characteristics for the purpose of improving on the performance of tribology related parts. In fiscal 2000, activities are conducted in the four fields of (1) the experimental manufacture of tribo-materials by powder sintering and the review of the process, (2) the experimental manufacture of tribo-materials by melting and the review of the process, (3) the experimental manufacture of brake disk materials and the review of the process, and (4) the experimental manufacture of bearing materials and the review of the process. In field (1), the preparation of an Fe{sub 3}Al/FeAl intermetallic compound powder by mechanical alloying and gas atomization and the conditions of pressure sintering by HIP (hot isostatic press) or the like are established. Concerning the melting method, basic techniques are established and an experimentally built rotor is evaluated for braking characteristics. In field (3), efforts are made to develop Cu/Sb free brake linings that will match TiAl-made rotors and then an MgO/C system is discovered, which is found to be on the same level as the conventional materials. (NEDO)

  19. Study on transmitting mechanisms for CVT using a dry hybrid belt. Numerical simulation of transmitting forces and pulley thrusts at steady and transitional states; Kanshiki fukugo belt wo mochiita CVT ni kansuru kenkyu. Teijo oyobi hensokuji ni okeru dentatsuryoku to pulley suiryoku no suchi simulation

    Energy Technology Data Exchange (ETDEWEB)

    Miyazawa, T; Kuwabara, S; Fujii, T [Doshisha University, Kyoto (Japan); Nonaka, K [Bando Chemical Industries, Ltd., Kobe (Japan)

    1997-10-01

    A numerical model was developed to analyze the power transmitting mechanisms for CVT (Continuous Variable Transmissions) using a dry hybrid belt. The model consists of linear springs representing the rigidities of blocks, rubber and cord, and interface elements which identify slippage between pulleys and blocks. By using the present model, forces acting on the belt were calculated not only at steady but also transitional states. Calculated results well coincide with experimental ones. It is revealed that there is a great change of the pulley thrust when the speed ratio is shifting. Little radial slippage occurs when the pulley groove is reduced. 1 ref., 9 figs.

  20. FY 2000 report on the results of the regional consortium R and D project - Regional consortium energy R and D field. First year report. R and D of new composite polymer electrolyte for battery; 2000 nendo chiiki consortium kenkyu kaihatsu jigyo - chiiki consortium energy kenkyu kaihatsu bun'ya. Denchiyo shinki fukugo polymer kei denkaishitsu no kenkyu kaihatsu (dai 1 nendo) seika hokokusho

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    The development was proceeded with of new composite polymer electrolyte for Li secondary battery. The ultimate target of the development using this electrolyte is to get Li secondary battery markedly improved in safety/reliability which works at low temperature and controls thermal runaway. The composite polymer base electrolyte is composed of high molecular weight polyethylene oxide copolymer, ethylene oxide oligomer and Li salt, and it is finally cross-linked by heat or light. Studies were made in the following 6 fields: 1) R and D of the creation and optimization of new composite polymer electrolyte; 2) R and D of the commercialization of composite polymer electrolyte battery; 3) R and D on the safety of composite polymer electrolyte; 4) study of the synthesis of new electrolyte and catalytic activity of electrolyte-electrode interface; 5) R and D on polymer/oligomer composite electrolyte; and 6) comprehensive investigational research. (NEDO)

  1. FY 1998 industrial technology R and D project. Report on the results of the development of utilization technology of biological resource such bioconsortia system (Development of production technology of biological use petroleum substituting fuels); 1998 nendo sangyo gijutsu kenkyu kaihatsu jigyo. Fukugo seibutsukeinado seibutsu shigen riyo gijutsu kaihatsu (seibutsu riyo sekiyu daitai nenryo seizo gijutsu no kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    Technology development was conducted for production of useful substances using the bioconsortia system. In FY 1998, the development of element technology was studied. As to the utilization technology of gut symbiotic microorganisms such as termite and longhorn beetle, clone types of gut microorganism complex system were analyzed to find out the diversification. In the decay of wood, co-culture of two species of mold fungus was increased in efficiency than single culture. More than 90% was classified/identified of the mold fungi accumulated (in wood piece)/separated for the utilization of plant symbiotic microorganisms. For the production of petroleum substituting useful resource, conditions were established of callus induction from immature embryos of tropical oil crops, especially oil palm, and of regeneration of a lot of small plants from the callus. To establish the Agrobacterium-mediated transformation system of oil palm, the binary vector harboring the reporter gene and selectable marker gene was constructed. Using the vector, oil palm tissues are inoculated and infected with agrobacteria. To heighten the function of palm oil, 10 particular clones were selected from the complementary DNA library obtained from oil palm fruit tissues. The genetic study of germs was also made. (NEDO)

  2. FY 1998 report on the results of the development of the utilization technology of biological resources such as bioconsortia. Development of the petroleum substituting fuel production technology using biology; 1998 nendo fukugo seibutsukei nado seibutsu shigen riyo gijutsu kaihatsu seika hokokusho. Seibutsu riyo sekiyu daitai nenryo seizo gijutsu no kaihatsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    For the purpose of establishing the analysis technology and industrial utilization technology required for the establishment of the utilization technology of consortia's high functions which are already used in the fermentation technology field over the limit of the conventional bio-technology using functions of single biological species, study was made. As a part of the study, the establishment was aimed at of the high-grade utilization technology of seaweed/algae using the degradation/conversion functions of the consortium base and the useful substance production technology by interaction of the consortium base of organism and flora/fauna. Studies for the establishment of the technology were made in the following two fields: technology to use unused resources such as lignocellulose and technology to produce petroleum substituting useful resources. As to the technology to use unused resources, the establishment was proceeded with of the technology to degrade/convert the seaweed-origin acidic polysaccharide into the useful substance using the consortium system. In FY 1998, in search of the excellent microorganism consortia which can degrade/solubilize carageenan, samples were picked up from the underwater of the Republic of Palau and incubated in the flat culture medium. Thirty-eight kinds of the degraded bacterium group were acquired. Using the degraded bacterium group, {kappa}-carrageenan was degraded and analyzed of the products. (NEDO)

  3. Fiscal 1998 achievement report on regional consortium research and development project. Research and development for developing basic technologies of composite laser-aided metal machining into highly advanced system (Technology of machining process systematization for furnishing titanium and titanium alloys with advanced functions - 2nd year); 1998 nendo fukugo laser nado ni yoru kinzoku kako kiban gijutsu no kodo system ka no kenkyu kaihatsu seika hokokusho. 2. Chitan oyobi chitan gokin eno kokino fuyo kako system ka gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    For the creation of new industries and for their expansion to the consumer market, efforts are made to develop laser-aided technology of bonding titanium with other metals and CAD/CAM (computer-aided design/computer-aided manufacture)-aided technology of high-precision multidimensional laser machining for titanium. In the development of technology for bonding titanium and other metals, combinations of titanium and stainless steel and titanium and copper are examined, and a dissimilar metal joint is successfully manufactured, free of cracks at a tension shear strength level of approximately 4200N/40mm and shear stress of 200MPa or higher. In the study of the mechanism of bonding, it is found that a sound weld metal is created with the formation of intermetallic compounds well inhibited by allowing titanium to be on the upper surface. In the study of laser-aided titanium cutting, a dross-free cutting process is realized by optimizing cutting conditions such as those involving laser excitation and assist gas application. Three-dimensional laser-aided cutting is carried out in compliance with a 3-dimensional laser cutting program incorporating metal pattern data, and the process is found to reduce the number of necessary dies to 1/4 to shorten and simplify the process. (NEDO)

  4. FY 1993 research and development of the technology for controlling structures of functional composite members. R and D of advanced surface processing for methane-fueled aircraft engine members (Technology for controlling the microscopic structures of superhigh-temperature members); 1993 nendo fukugo kino buzai kozo seigyo gijutsu no kenkyu kaihatsu (methane nenryo kokukiyo engine buzai no kodo hyomen kako gijutsu kaihatsu). Chokoon buzai micro kozo seigyo gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    Described herein are the results of the FY1993 research and development project, implemented for development of the technologies for modification of material surfaces and interfaces, with the objectives to develop the optimum members for methane-fueled aircraft engines. For R and D of multi-layered films with controlled microscopic structures, the tests are conducted for forming thin-film layers by, e.g., ion implantation, ion mixing and implantation of large quantities of ions as the surface controlling/modification techniques based on, e.g., ionic techniques. The tests are conducted for, e.g., chemical vapor-phase reaction evaporation and low-pressure plasma spraying as the technologies for forming multi-functional films of, e.g., high reliability and resistance to corrosion. For development of the technologies for controlling/compositing the microscopic structures, the tests are conducted for, e.g., selection of the matrix materials, and prevention/removal of defects by the chemical vapor-phase reaction penetration treatment effected for extended periods. For development of the technologies for evaluation of the characteristics under superhigh-temperature environments, the tests are conducted to investigate the mechanical characteristics of isotropically uniform metallic materials under multi-dimensional stresses and evaluation thereof, and mechanical and thermal characteristics of carbon-fiber-reinforced carbon composites and evaluation thereof. (NEDO)

  5. Fiscal 1997 survey report / R and D of important region technology. R and D of technologies giving multi-functional characteristics to C/C composites (development of high-grade surface processing technology for engine members for methane fueled air craft. 1. control technology of micro structures of ultra-high temperature members); 1997 nendo seika hokokusho juyo chiiki gijutsu kenkyu kaihatsu. Fukugo kino buzai kozo seigyo gijutsu no kenkyu kaihatsu (methane nenryo kokukiyo engine buzai no kodo hyomen kako gijutsu kaihatsu). 1. chokoon buzai micro kozo seigyo gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    For the purpose of developing members most suitable for aircraft use engines with methane as fuel, the R and D were conducted of technology to reform surfaces and interfaces of materials. In the R and D, the paper took up carbon fiber reinforced carbon composite materials (C/C composites). In the surface control and reformation technology using the ion engineering method, etc., in the sealing processing of C/C composites, tried was the formation of a C/SiC/Si3N4 composite layer which was formed by Si3N4 much smaller in thermal expansion coefficient than SiC. Further, technologies on ion injection, thin film formation, giving of oxidation resistance/corrosion resistance, improving/giving of thermal shock resistance, etc. In the multi-functional coating formation technology such as high liability and corrosion resistance, the study was carried out of the dense composite functionally-gradient layer as thermal stress relaxation layer and the fiber reinforced layer by carbon fiber using pores. Besides, studies were made of technologies of the micro structure control combination, evaluation of ultra-high temperature resistant environmental characteristics, etc. 61 refs., 198 figs., 44 tabs.