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11. 发明申请

US20140217852A1 POWER-GENERATING SYSTEM 审中-公开
标题翻译：发电系统
公开(公告)号：US20140217852A1
公开(公告)日：2014-08-07
申请号：US14241324
申请日：2012-08-28
申请人： Yoonho Kim , Takeshi Serizawa , Hirohisa Tanaka , Tadachika Nakayama , Masatoshi Takeda , Noboru Yamada , Koichi Niihara , Kyohei Ogawa , Hiroya Nakata , Masashi Shida , Satoshi Ishizawa
发明人： Yoonho Kim , Takeshi Serizawa , Hirohisa Tanaka , Tadachika Nakayama , Masatoshi Takeda , Noboru Yamada , Koichi Niihara , Kyohei Ogawa , Hiroya Nakata , Masashi Shida , Satoshi Ishizawa
IPC分类号： H02N11/00
CPC分类号： H02N11/002 , F01N5/025 , H01L37/02 , H01L37/025 , Y02T10/16
摘要： A power-generating system includes a heat source which is able to produce temporal temperature variation; a first device which is able to produce temporal temperature variation so as to include at least partially a temperature range of −20° C. relative to the Curie temperature to +10° C. relative to the Curie temperature based on the temperature change of the heat source, and in which polarization occurs; and a second device for taking out a net generating power from the first device.
摘要翻译：发电系统包括能够产生时间温度变化的热源; 能够产生时间温度变化的第一装置，以便相对于居里温度至+ 10℃至少部分地包括-20℃的温度范围，相对于居里温度，基于温度变化热源，发生极化; 以及用于从第一装置取出净发电功率的第二装置。

12. 发明授权

US5854158A ZrO.sub.2 based ceramic material and method of producing the same 失效
标题翻译： ZrO2系陶瓷材料及其制造方法
公开(公告)号：US5854158A
公开(公告)日：1998-12-29
申请号：US873244
申请日：1997-06-11
申请人： Masahiro Nawa , Shoichi Nakamoto , Koichi Niihara , Tohru Sekino
发明人： Masahiro Nawa , Shoichi Nakamoto , Koichi Niihara , Tohru Sekino
IPC分类号： C04B35/48 , C04B35/488 , C04B35/482 , C04B35/49
CPC分类号： C04B35/4885
摘要： A ZrO.sub.2 based ceramic material having excellent mechanical strength and fracture toughness comprises a first phase of ZrO.sub.2 grains containing CeO.sub.2 as a stabilizer and having an average grain size of 5 .mu.m or less, a second phase of Al.sub.2 O.sub.3 grains having an average grain size of 2 .mu.m or less, and a third phase of elongated crystals of a complex oxide of Al, Ce, and one of Mg and Ca. At least 90 vol % of the first phase is composed of tetragonal ZrO.sub.2. An aluminum (Al) content in the ceramic material is determined such that when Al of the complex oxide is converted to Al.sub.2 O.sub.3, a total amount of Al.sub.2 O.sub.3 in the ceramic material is within a range of 0.5 to 50 vol %. A content of the third phase in the ceramic material is determined within a range of 0.5 to 5 by area %. It is preferred that fine Al.sub.2 O.sub.3 grains having an average grain size of 1 .mu.m or less of the second phase are dispersed within the ZrO.sub.2 grains at a dispersion ratio of at least 2%.
摘要翻译：具有优异的机械强度和断裂韧性的ZrO 2系陶瓷材料包括含有CeO 2作为稳定剂并具有5μm以下的平均粒径的ZrO 2粒子的第一相，平均粒径为2μm的Al 2 O 3粒子的第二相以及Al，Ce和Mg和Ca之一的复合氧化物的细长晶体的第三相。第一相的至少90体积％由四方晶ZrO 2组成。确定陶瓷材料中的铝（Al）含量，使得当复合氧化物的Al转化为Al 2 O 3时，陶瓷材料中Al 2 O 3的总量在0.5至50体积％的范围内。陶瓷材料中的第三相的含量在0.5〜5的面积％的范围内决定。优选第二相的平均粒径为1μm以下的细小的Al 2 O 3粒子以至少2％的分散比分散在ZrO 2粒子内。

13. 发明授权

US5376599A Carbon fiber reinforced silicon nitride based nanocomposite material and method for preparing same 失效
标题翻译：碳纤维增强氮化硅基纳米复合材料及其制备方法
公开(公告)号：US5376599A
公开(公告)日：1994-12-27
申请号：US960104
申请日：1992-10-13
申请人： Kenji Oshima , Tsugio Ito , Yoshitsugu Kato , Koichi Niihara , Atsushi Nakahira , Misao Iwata
发明人： Kenji Oshima , Tsugio Ito , Yoshitsugu Kato , Koichi Niihara , Atsushi Nakahira , Misao Iwata
IPC分类号： C04B35/584 , C04B35/597 , C04B35/599 , C04B35/80 , C04B35/52
CPC分类号： C04B35/806 , C04B35/597
摘要： Carbon fiber reinforced silicon nitride based nanocomposite material is produced by mixing a powder mixture of silicon nitride powders (with or without alumina powders), and fine silicon carbide powders, with a solution of a preceramic polymer containing silicon and nitrogen, to form a solution for impregnation, by passing carbon fibers through the solution to produce a mass of impregnated carbon fibers, forming the mass to a desired shape and by sintering in an inert atmosphere. Ultra-high strength and toughness are produced due to reinforcement by nanocompositization of the matrix phase, that by dispersion of fine particles and that by long carbon fibers, part of matrix phase is generated by thermal cracking of preceramic polymer.
摘要翻译：碳纤维增强氮化硅基纳米复合材料通过将氮化硅粉末（含或不含氧化铝粉末）和细小碳化硅粉末的粉末混合物与含有硅和氮的预陶瓷聚合物的溶液混合以形成溶液浸渍，通过使碳纤维通过溶液以产生大量浸渍的碳纤维，将物质形成所需形状并通过在惰性气氛中烧结。由于通过基体相的纳米复合而增强了超高强度和韧性，通过细颗粒的分散和通过长碳纤维，部分基质相通过预陶瓷聚合物的热裂化而产生。

14. 发明授权

US5322823A Ceramic composites and process for its production 失效
标题翻译：陶瓷复合材料及其生产工艺
公开(公告)号：US5322823A
公开(公告)日：1994-06-21
申请号：US27525
申请日：1993-03-08
申请人： Hisao Ueda , Ryuichi Matsuki , Takeyoshi Takenouchi , Hiroshi Sasaki , Koichi Niihara
发明人： Hisao Ueda , Ryuichi Matsuki , Takeyoshi Takenouchi , Hiroshi Sasaki , Koichi Niihara
IPC分类号： C04B35/10 , C04B35/117 , C04B35/80 , C04B35/56 , C04B35/58
CPC分类号： C04B35/117 , C04B35/803
摘要： A ceramics composites prepared by dispersing any one of the following materials (i) to (viii) in Al.sub.2 O.sub.3 which as a matrix-containing crystalline grains having a grain size of 0.5 to 100 .mu.m. (i) 3 to 40% by volume of fine TiN particles having a particle size of not more than 2 .mu.m and 3 to 40% by volume of fine SiC particles having a particle size of not more than 2 .mu.m. (ii) 3 to 40% by volume of fine TiN particles having a particle size of not more than 2 .mu.m and 3 to 40% by volume of fine Si.sub.3 N.sub.4 particles having a particle size of not more than 2 .mu.m. (iii) 2 to 35% by volume of fine TiC particles having a particle size of not more than 2 .mu.m and 5 to 40% by volume of SiC whiskers having a diameter of 0.05 to 2 .mu.m. (iv) 2 to 35% by volume of fine TiC particles having a particle size of not more than 2 .mu.m and 5 to 40% by volume of Si.sub.3 N.sub.4 whiskers having a diameter of 0.1 to 2 .mu.m. (v) 3 to 40% by volume of fine TiN particles having a particle size of not more than 2 .mu.m and 3 to 30% by volume of SiC whiskers having a diameter of 0.05 to 2 .mu.m. (vi) 3 to 40% by volume of fine TiN particles having a particle size of not more than 2 .mu.m and 3 to 30% by volume of Si.sub.3 N.sub.4 whiskers having a diameter of 0.1 to 2 .mu.m. (vii) 2 to 35% by volume of fine TiC particles having a particle size of not more than 2 .mu.m and 5 to 40% by volume of fine SiC particles having a particle size of not more than 2 .mu.m. (viii) 2 to 35% by volume of fine TiC particles having a particle size of not more than 2 .mu.m and 5 to 40% by volume of fine Si.sub.3 N.sub.4 particles having a particle size of not more than 2 .mu.m.
摘要翻译：通过在Al 2 O 3中分散以下材料（i）至（viii）中的任一种制备的陶瓷复合材料，其作为晶粒尺寸为0.5至100μm的基质的晶粒。（i）3〜40体积％的粒径为2μm以下的细TiN粒子和3〜40体积％的粒径为2μm以下的微细SiC粒子。（ii）3〜40体积％的粒径为2μm以下的细小TiN粒子和3〜40体积％的粒径为2μm以下的细小Si3N4粒子。（iii）2〜35体积％的粒径为2μm以下的细小TiC粒子和5〜40体积％的直径为0.05〜2μm的SiC晶须。（iv）2〜35体积％的粒径为2μm以下的细小TiC粒子和5〜40体积％的直径为0.1〜2μm的Si 3 N 4晶须。（v）3〜40体积％的粒径为2μm以下的细小TiN粒子和3〜30体积％的直径为0.05〜2μm的SiC晶须。（vi）3〜40体积％的粒径不大于2μm的细TiN粒子和3〜30体积％的直径为0.1〜2μm的Si 3 N 4晶须。（vii）2〜35体积％的粒径为2μm以下的细小TiC粒子和5〜40体积％的粒径为2μm以下的微细SiC粒子。（viii）2〜35体积％的粒径为2μm以下的细小TiC粒子和5〜40体积％的粒径为2μm以下的微细Si 3 N 4粒子。

15. 发明授权

US4118539A Super hard-highly pure silicon nitrides having a preferred crystal face orientation 失效
标题翻译：具有优选晶面取向的超硬度高纯氮化硅
公开(公告)号：US4118539A
公开(公告)日：1978-10-03
申请号：US756282
申请日：1977-01-03
申请人： Toshio Hirai , Koichi Niihara
发明人： Toshio Hirai , Koichi Niihara
IPC分类号： C01B21/068 , C04B35/584 , C23C16/34 , C23C16/44 , C23C16/455 , C30B25/02 , C30B28/14 , C30B29/38 , H01M2/08 , C01B21/06 , B01J17/32
CPC分类号： C23C16/45563 , C04B35/584 , C23C16/345 , C23C16/455 , C23C16/45576 , C30B25/02 , C30B29/38 , C30B29/605 , H01M2/08 , Y10S117/902 , Y10S117/915
摘要： A super hard-highly pure silicon nitride includes a preferentially oriented crystalline silicon nitride having a grain size of 1-50 .mu.m and a micro Vickers hardness of 3,000 kg/mm.sup.2 under a load of 100 g, a finely grained crystalline silicon nitride having an average grain size of less than 1 .mu.m and a micro Vickers hardness of 3,500 kg/mm.sup.2 under a load of 100 g, and an amorphous silicon nitride having a micro Vickers hardness of 2,200 kg/mm.sup.2 under a load of 100 g, and is produced by blowing a nitrogen depositing source and a silicon depositing source on a substrate heated at 500.degree.-1,900.degree. C with a blowpipe composed of a pipe assembly wherein a first pipe for the nitrogen depositing source is surrounded with a second pipe for the silicon depositing source and the distance from an opening end of the first pipe to the substrate is shorter than the distance from an opening end of the second pipe to the substrate.
摘要翻译：超硬度高的氮化硅包括在负载为100g的情况下，晶粒尺寸为1-50μm和微维氏硬度为3,000kg / mm 2的优先取向的结晶氮化硅，具有平均粒度小于1μm，微维氏硬度为3500kg / mm2，负荷为100g时，微观维氏硬度为2200kg / mm2的非晶氮化硅，负荷为100g，为通过在由500℃-100℃加热的基板上吹入氮气沉积源和硅沉积源而制成，其中管道组件包括用于氮沉积源的第一管道用于硅沉积的第二管道源和从第一管的开口端到基板的距离比从第二管的开口端到基板的距离短。

16. 发明授权

US5728636A Zirconia based ceramic material 失效
标题翻译：氧化锆基陶瓷材料
公开(公告)号：US5728636A
公开(公告)日：1998-03-17
申请号：US544285
申请日：1995-10-17
申请人： Masahiro Nawa , Shoichi Nakamoto , Keiichi Yamasaki , Koichi Niihara , Atsushi Nakahira , Tohru Sekino
发明人： Masahiro Nawa , Shoichi Nakamoto , Keiichi Yamasaki , Koichi Niihara , Atsushi Nakahira , Tohru Sekino
IPC分类号： C04B35/49 , C04B35/119 , C04B35/48 , C04B35/488
CPC分类号： C04B35/488 , C04B35/119
摘要： A zirconia based ceramic material having improved and well-balanced mechanical strength and toughness consists essentially of 0.5 to 50 vol % of Al.sub.2 O.sub.3 having an average grain size of 2 .mu.m or less and the balance of a partially stabilized zirconia having an average grain size of 5 .mu.m or less. The partially stabilized zirconia consists essentially of 8 to 12 mol % of CeO.sub.2, 0.05 to 4 mol % of TiO.sub.2 and the balance of ZrO.sub.2. Fine Al.sub.2 O.sub.3 grains having an average grain size of 1 .mu.m or less are dispersed within the grains of the partially stabilized zirconia at a dispersion ratio. The dispersion ratio is defined as a ratio of the number of Al.sub.2 O.sub.3 grains dispersed within the grains of the partially stabilized zirconia relative to the number of the entire Al.sub.2 O.sub.3 grains dispersed in the ceramic material, and at least 2% in the present invention. The ceramic material can be made by the following process. A first constituent formed of the partially stabilized zirconia is mixed with a second constituent formed of Al.sub.2 O.sub.3 to obtain a mixture. The mixture is molded into a desired shape, and then sintered in the air under an atmospheric pressure to obtain the ceramic material.
摘要翻译：具有改善的良好平衡的机械强度和韧性的氧化锆基陶瓷材料基本上由平均粒径为2μm或更小的0.5至50vol％的Al 2 O 3组成，平均晶粒尺寸为 5亩以下。部分稳定的氧化锆基本上由8〜12mol％的CeO 2，0.05〜4mol％的TiO 2和余量的ZrO 2组成。平均粒径为1μm以下的细Al 2 O 3粒子以分散比分散在部分稳定化的氧化锆的晶粒内。分散比定义为分散在部分稳定的氧化锆的晶粒内的Al 2 O 3颗粒的数量相对于分散在陶瓷材料中的整个Al 2 O 3颗粒的数量的比率，并且在本发明中至少为2％。陶瓷材料可以通过以下方法制成。由部分稳定的氧化锆形成的第一组分与由Al 2 O 3形成的第二组分混合以获得混合物。将混合物成型为所需形状，然后在大气压下在空气中烧结，得到陶瓷材料。

17. 发明授权

US5459111A Composite ceramics sintered body 失效
标题翻译：复合陶瓷烧结体
公开(公告)号：US5459111A
公开(公告)日：1995-10-17
申请号：US159804
申请日：1993-11-30
申请人： Masashi Yoshimura , Koichi Niihara
发明人： Masashi Yoshimura , Koichi Niihara
IPC分类号： C04B35/505 , C04B35/645
CPC分类号： C04B35/645 , C04B35/505
摘要： The strength of a composite sintered body including yttrium oxide is improved. A composite ceramics sintered body includes a matrix of yttrium oxide and silicon carbide particles dispersed within the matrix. A compound oxide phase including yttrium and silicon is present at the surface of the sintered body. A sintered body is obtained by compression-molding mixed powder including yttrium oxide powder and silicon carbide powder in an inert gas atmosphere of at least 1550.degree. C. The sintered body is subjected to a heat treatment for at least 0.5 hour and not more than 12 hours in an atmosphere including oxygen gas in the range of at least 900.degree. C. and less than 1200.degree. C.
摘要翻译：提高了包含氧化钇的复合烧结体的强度。复合陶瓷烧结体包括分散在基质内的氧化钇和碳化硅颗粒的基体。在烧结体的表面存在包含钇和硅的复合氧化物相。通过在至少1550℃的惰性气体气氛中将含有氧化钇粉末和碳化硅粉末的混合粉末压缩成型而获得烧结体。烧结体经受至少0.5小时且不超过12的热处理在包括氧气在900℃以上且小于1200℃的气氛中的小时。

18. 发明授权

US5296301A Sintered ceramic-metal composite product and method of fabricating the same 失效
标题翻译：烧结陶瓷 - 金属复合材料及其制造方法
公开(公告)号：US5296301A
公开(公告)日：1994-03-22
申请号：US769398
申请日：1991-10-01
申请人： Masahiro Nawa , Koichi Niihara , Atsushi Nakahira , Tohru Sekino
发明人： Masahiro Nawa , Koichi Niihara , Atsushi Nakahira , Tohru Sekino
IPC分类号： C04B35/76 , C22C29/12 , C04B35/00
CPC分类号： C04B35/76 , C22C29/12
摘要： A sintered ceramic-metal composite product has a ceramic matrix of polycrystalline ceramic in which a metal phase is dispersed for adding improved toughness. The metal phase has a higher melting point than the sintering temperature of the ceramic matrix and comprises at least one metal selected from the groups IVa, Va and VIa of the periodic table. The metal phase is dispersed intragranular within the grains of the ceramic matrix to realize nano-order dispersion of the metal phase which is responsible for remarkably improved toughness as well as strength. The ceramic-metal composite product is successfully fabricated by several unique methods utilizing the mixture of the ceramic and metal or metal oxide, hydride or alkoxide.
摘要翻译：烧结的陶瓷 - 金属复合材料具有多晶陶瓷的陶瓷基体，其中分散有金属相以增加韧性。金属相具有比陶瓷基体的烧结温度更高的熔点，并且包含选自周期表的IVa，Va和VIa族中的至少一种金属。金属相粒内分散在陶瓷基体的晶粒内，实现了金属相的纳米级分散，这导致了显着提高的韧性和强度。通过使用陶瓷和金属或金属氧化物，氢化物或醇盐的混合物的几种独特的方法成功地制造了陶瓷 - 金属复合产品。

19. 发明授权

US5134097A Silicon nitride-silicon carbide composite material and process for production thereof 失效
标题翻译：氮化硅 - 碳化硅复合材料及其制造方法
公开(公告)号：US5134097A
公开(公告)日：1992-07-28
申请号：US787129
申请日：1991-11-04
申请人： Koichi Niihara , Kansei Izaki , Takamasa Kawakami
发明人： Koichi Niihara , Kansei Izaki , Takamasa Kawakami
IPC分类号： C04B35/584 , C04B35/593
CPC分类号： C04B35/593
摘要： A sintered silicon nitride-silicon carbide composite material is provided comprising a matrix phase of silicon nitride and silicon carbide where silicon carbide grains having an average diameter of not more than 1 .mu.m are present at grain boundaries of silicon nitride grains and silicon carbide grains having a diameter of several nanometers to several hundred nanometers, typically not more than about 0.5 micrometers, are dispersed within the silicon nitride grains and a dispersion phase where (a) silicon carbide grains having an average diameter of 2 to 50 .mu.m and/or (b) silicon carbide whiskers having a short axis of 0.05 to 10 .mu.m and an aspect ratio of 5 to 300 are dispersed in the matrix phase. A process for the production of the composite material is also provided.
摘要翻译：提供了一种烧结氮化硅 - 碳化硅复合材料，其包括氮化硅和碳化硅的基体相，其中平均直径不大于1μm的碳化硅晶粒存在于氮化硅晶粒和碳化硅晶粒的晶界处，几纳米至几百纳米，通常不超过约0.5微米的直径分散在氮化硅晶粒和分散相中，其中（a）平均直径为2至50微米的碳化硅颗粒和/或（ b）短轴为0.05〜10μm，纵横比为5〜300的碳化硅晶须分散在基体相中。还提供了生产复合材料的方法。

20. 发明授权

US5130277A Ceramic composite material and process of manufacturing thereof 失效
标题翻译：陶瓷复合材料及其制造方法
公开(公告)号：US5130277A
公开(公告)日：1992-07-14
申请号：US393937
申请日：1989-08-15
申请人： Hisao Ueda , Hiroshi Sasaki , Koichi Niihara
发明人： Hisao Ueda , Hiroshi Sasaki , Koichi Niihara
IPC分类号： C04B35/043 , C04B35/04 , C04B35/053 , C04B35/78
CPC分类号： C04B35/053 , C04B35/645 , C04B35/78
摘要： A MgO/SiC composite material in which SiC particles with nano-meter order in size are dispersed within MgO matrix grains can be prepared by hot-pressing the mixture of fine MgO and SiC powders. Addition of SiC particles in the range of 5 volume percent to 50 volume percent to the MgO matrix increased remarkably the fracture strength and the hardness in a nanometer-order structure of the composite.

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