公开(公告)号：US06303075B1

公开(公告)日：2001-10-16

申请号：US09534625

申请日：2000-03-27

申请人： Kazuhisa Shobu ,  Hisatoshi Hirai ,  Tatsuo Tabaru ,  Hidetoshi Ueno ,  Akira Kitahara

发明人： Kazuhisa Shobu ,  Hisatoshi Hirai ,  Tatsuo Tabaru ,  Hidetoshi Ueno ,  Akira Kitahara

IPC分类号： B22F310

CPC分类号： C22C27/02 ,  B22F2003/241 ,  B22F2998/00 ,  B22F2998/10 ,  C22C32/0031 ,  C23C8/10 ,  F01D5/28 ,  F01D5/288 ,  C22C1/05 ,  B22F3/23 ,  B22F3/24

摘要： A high temperature Nb-base alloy material which contains a ductile Nb-base metal phase to secure the toughness of the alloy at a normal temperature, and yet it can provide a dense oxide film in a high temperature oxidative atmosphere, thereby it can maintain excellent oxidation resistance even when the coating is broken, i.e. it has self repairing function, is provided. The high temperature oxidation resistant alloy material is constructed by adding a trace amount of metal Mg which is necessary to form a dense oxide film comprising MgO as a main component on the surface in an elevated temperature oxidative atmosphere, to a composite phase alloy comprising not less than 10% by volume of a Nb-base solid solution metal phase represented by atomic ratio as Nb—(15-40%)Ti—(5-20%)Al and the remainder of one or more kinds of intermetallic compound phases or ceramic phases having high oxidation resistance.

摘要翻译： 一种高温Nb基合金材料，其含有韧性Nb贱金属相以确保合金在常温下的韧性，但是它可以在高温氧化气氛中提供致密的氧化膜，从而可以保持优异的 即使涂层破裂也具有抗氧化性，即具有自修复功能。高温抗氧化合金材料是通过添加痕量的金属Mg构成的，这些金属是必需的，以形成包含MgO的致密氧化膜为主 成分为在高温氧化性气氛中的表面的复合相合金，包含不小于10体积％的由Nb-（15-40％）Ti-（5）的原子比表示的Nb基固溶体金属相的复合相合金 -20％）Al，剩余的一种或多种金属间化合物相或具有高抗氧化性的陶瓷相。

公开(公告)号：US5698143A

公开(公告)日：1997-12-16

申请号：US548042

申请日：1995-10-25

申请人： Eiji Tani ,  Kazuhisa Shobu

发明人： Eiji Tani ,  Kazuhisa Shobu

IPC分类号： C04B35/565 ,  C04B35/571 ,  C04B35/573 ,  C04B35/80

CPC分类号： C04B35/806 ,  C04B35/571 ,  C04B35/573

摘要： Disclosed is a method for the preparation of a fiber-reinforced silicon carbide-based composite ceramic body having outstandingly high mechanical strengths even without using any sintering aids or without undertaking the hot-press sintering method. The method comprises impregnating carbon fibers or silicon carbide fibers with a slurry containing an elementary silicon powder, an organic resin, e.g., phenolic resins, and an organosilicon polymer, e.g., polysilastyrenes, according to a specified formulation and shaping the impregnated fibers into a green body which is subjected to a calcination treatment at 1300.degree.-1500.degree. C. in an inert atmosphere under normal pressure.

摘要翻译： 公开了一种即使不使用任何烧结助剂也不进行热压烧结方法，制造具有优异的机械强度的纤维增强碳化硅系复合陶瓷体的方法。 该方法包括用含有基本硅粉末，有机树脂例如酚醛树脂和有机硅聚合物（例如聚脂肪酸）的淤浆浸渍碳纤维或碳化硅纤维，根据指定的配方，将浸渍的纤维成形为绿色 在常压下在惰性气氛中在1300〜1500℃进行煅烧处理。

公开(公告)号：US5036028A

公开(公告)日：1991-07-30

申请号：US511816

申请日：1990-04-18

申请人： Tadahiko Watanabe ,  Tsuyoshi Doutsu ,  Kazuhisa Shobu ,  Yukio Kai

发明人： Tadahiko Watanabe ,  Tsuyoshi Doutsu ,  Kazuhisa Shobu ,  Yukio Kai

IPC分类号： C04B35/58

CPC分类号： C04B35/5805 ,  C04B35/58064 ,  C04B35/58071 ,  C04B35/58078 ,  C04B35/645

摘要： A high density metal-boride based ceramic sintered body consists essentially of component (A) at least one of TiB.sub.2, ZrB.sub.2, CrB.sub.2, HfB.sub.2, VB.sub.2, TaB.sub.2, NbB.sub.2, MnB.sub.2, MoB.sub.2, YB.sub.2, AlB.sub.2, MgB.sub.2, CrB, VB, TaB, NbB, MoB, HfB, YB, ZrB, HfB, TiB, MnB, W.sub.2 B.sub.5 and Mo.sub.2 B.sub.5, componet (B) 0.1 wt. %-10 wt. % based on the total amount of a metal binder comprising at least one of cobalt boride, nickel boride and iron boride, and component (C) 0.1 wt. %-10 wt. % based on the total amount of at least one of a double carbide comprising Ti, Zr, W and C, ZrCN, HfCN, or a double carbo-nitride comprising Ti, Zr, Hf and C, N.The sintered body is not easily oxidized and has extremely few pores and high shock resistance even using a fine grain raw material powder because component (C) has an oxygen removing effect during sintering.

摘要翻译： 高密度金属硼化物系陶瓷烧结体主要由TiB 2，ZrB 2，CrB 2，HfB 2，VB 2，TaB 2，NbB 2，MnB 2，MoB 2，YB 2，AlB 2，MgB 2，CrB，VB，TaB ，NbB，MoB，HfB，YB，ZrB，HfB，TiB，MnB，W2B5和Mo2B5，组分（B）0.1wt。 ％-10wt。 基于包含钴硼化物，硼化镍和硼化物中的至少一种的金属粘合剂的总量的％，和组分（C）0.1重量％ ％-10wt。 基于包含Ti，Zr，W和C，ZrCN，HfCN或包含Ti，Zr，Hf和C，N的双碳氮化物中的至少一种的总量的％。烧结体不容易 氧化，并且即使使用细粒原料粉末也具有极少的孔和高抗冲击性，因为组分（C）在烧结期间具有除氧效果。

公开(公告)号：US4910171A

公开(公告)日：1990-03-20

申请号：US355883

申请日：1989-05-23

申请人： Tadahiko Watanabe ,  Kazuhisa Shobu ,  Hideki Yamamoto

发明人： Tadahiko Watanabe ,  Kazuhisa Shobu ,  Hideki Yamamoto

IPC分类号： C04B35/56 ,  C04B35/58

CPC分类号： C04B35/645 ,  C04B35/5607 ,  C04B35/5611 ,  C04B35/5622 ,  C04B35/5626 ,  C04B35/58014 ,  C04B35/58021 ,  C04B35/5805 ,  C04B35/58057 ,  C04B35/58064 ,  C04B35/58071 ,  C04B35/58078

摘要： The present invention is characterized by a ceramic sintered body consisting of (1) a primary mixed powder in which boride metal powder the MB.sub.2 type or M.sub.2 B.sub.5 type (M indicates the metal) is mixed with a titanium hafnium carbide powder; (2) a secondary mixed powder in which titanium carbonitride is mixed with the above-mentioned primary mixed powder; or (3) a tertiary mixed powder or a quaternary mixed powder in which carbide powder such as hafnium carbide or zirconium carbide is mixed with above-mentioned primary mixed powder or the secondary mixed powder. The resulting sintered bodies have high hardness and toughness.

摘要翻译： 本发明的特征在于：（1）主要混合粉末，其中MB2型或M2B5型（M表示金属）的硼化物金属粉末与钛酸铪粉末混合， （2）将碳氮化钛与上述初级混合粉末混合的二次混合粉末; 或者（3）将上述的初级混合粉末或二次混合粉末与碳化铪，碳化锆等碳化物粉末混合的三级混合粉末或四元混合粉末。 所得烧结体具有高硬度和韧性。

公开(公告)号：US4810676A

公开(公告)日：1989-03-07

申请号：US207890

申请日：1988-06-16

申请人： Tadahiko Watanabe ,  Kazuhisa Shobu ,  Yuji Enomoto

发明人： Tadahiko Watanabe ,  Kazuhisa Shobu ,  Yuji Enomoto

IPC分类号： C04B35/12 ,  C04B35/56

CPC分类号： C04B35/5607 ,  C04B35/12

摘要： Described herein is a chromium oxide-based ceramic material obtained by sintering a powder mixture consisting of chromium oxide powder and 0.1-90 wt % of chromium carbide powder based on the total amount of the powder mixture. The sintered product has not only a small coefficient of friction over a wide temperature range from normal to high temperature but also excellent deflection resistance and high density with less pores, which are suitable for application as a sliding material.

摘要翻译： 这里描述的是基于粉末混合物的总量烧结由氧化铬粉末和0.1-90重量％的碳化铬粉末组成的粉末混合物获得的氧化铬基陶瓷材料。 烧结产品在普通到高温的宽温度范围内不仅具有小的摩擦系数，而且具有优异的抗挠曲性和高密度，孔隙少，适用于滑动材料。

公开(公告)号：US4808557A

公开(公告)日：1989-02-28

申请号：US68740

申请日：1987-06-30

申请人： Tadahiko Watanabe ,  Kazuhisa Shobu ,  Yuko Tsuya ,  Yuji Enomoto ,  Junshiro Hayakawa ,  Osamu Yagishita ,  Hideki Yamamoto ,  Eiichi Sudoh

发明人： Tadahiko Watanabe ,  Kazuhisa Shobu ,  Yuko Tsuya ,  Yuji Enomoto ,  Junshiro Hayakawa ,  Osamu Yagishita ,  Hideki Yamamoto ,  Eiichi Sudoh

IPC分类号： C04B35/56 ,  C04B35/58

CPC分类号： C04B35/5607 ,  C04B35/58021

摘要： The present invention is characterized by ceramic materials comprising ceramic sintered bodies consisting of (1) 1-90 wt % chromium carbide and the remainder carbonic titanium nitride; (2) 1-90 wt % chromium carbide, 0.1-5 wt % B.sub.4 C and the remainder titanium carbo-nitride; or (3) either of the above compositions plus less than 95 wt % of a metal boride such as Ti or Zr. Such ceramic sintered bodies are used for cutting tools or wear-resistant machine parts because of their high density, high hardness and high strength.

摘要翻译： 本发明的特征在于包括由（1）1-90重量％碳化铬和其余为碳氮化钛组成的陶瓷烧结体的陶瓷材料; （2）1-90重量％碳化铬，0.1-5重量％B4C和其余钛碳氮化物; 或（3）上述组合物中的任一种加上小于95wt％的金属硼化物如Ti或Zr。 这种陶瓷烧结体由于其高密度，高硬度和高强度而用于切割工具或耐磨机器部件。

公开(公告)号：US20050074561A1

公开(公告)日：2005-04-07

申请号：US10765831

申请日：2004-01-29

申请人： Tatsuo Tabaru ,  Kazuhisa Shobu ,  Hisatoshi Hirai ,  Michiru Sakamoto

发明人： Tatsuo Tabaru ,  Kazuhisa Shobu ,  Hisatoshi Hirai ,  Michiru Sakamoto

IPC分类号： C23C4/02 ,  C23C8/80 ,  C23C28/00 ,  B05D1/08

CPC分类号： C23C28/345 ,  C23C4/02 ,  C23C8/80 ,  C23C28/324

摘要： A method for easily and uniformly forming a film at a low cost, which is comprising a diffusion-barrier layer 3 and a coating layer 4, on a surface of a substrate 1. The method has a preliminary oxidation step of forming a substrate oxide layer 2 by oxidizing the substrate 1, and a step of coating the surface thereof with a coating material containing at least one alloy or a compound, which includes an element forming an oxide having a low enthalpy of formation as compared to that of the oxide of the substrate oxide layer 2, and as a result.

摘要翻译： 在基板1的表面上以低成本容易且均匀地形成膜的方法，其包括扩散阻挡层3和涂层4.该方法具有形成基板氧化物层的预氧化步骤 2，通过氧化基板1，并且用包含至少一种合金或化合物的涂层涂覆其表面的步骤，该涂层材料包括形成具有低的形成焓的氧化物的元素， 底物氧化物层2，结果。

公开(公告)号：US5294460A

公开(公告)日：1994-03-15

申请号：US961311

申请日：1992-10-15

申请人： Eiji Tani ,  Kazuhisa Shobu ,  Tadahiko Watanabe

发明人： Eiji Tani ,  Kazuhisa Shobu ,  Tadahiko Watanabe

IPC分类号： C04B35/565 ,  C01B31/36 ,  C04B35/52 ,  C04B35/571 ,  C04B35/573 ,  C04B35/80 ,  C04B41/87 ,  C04B41/88 ,  C09K3/14 ,  D01F9/08 ,  D01F9/10 ,  D01F11/12 ,  D01F11/14 ,  D06M11/00 ,  D06M11/73 ,  D06M11/77 ,  D06M101/00 ,  D06M101/40 ,  B05D3/02

CPC分类号： C04B35/806 ,  C04B35/571 ,  C04B35/573 ,  D01F11/126

摘要： A novel method is disclosed for the preparation of a silicon carbide-based composite ceramic body reinforced with carbon fibers having an outstandingly high mechanical strength. The method comprises impregnating carbon fibers with a mixture of fine silicon particles and a thermosetting resin such as a phenolic resin to give a carbon fiber compact body impregnated with the mixture, which is then subjected to a heat treatment at about 1400.degree. C. in an inert atmosphere so that the thermosetting resin is thermally decomposed to produce free carbon capable of reacting with the silicon particles without affecting the carbon fibers embedded in the matrix due to the preferential reactivity of the silicon particles with the free carbon produced from the resin thus not to decrease the recinforcing effect of the carbon fibers.

摘要翻译： 公开了一种用于制备用具有极高机械强度的碳纤维增强的碳化硅基复合陶瓷体的新方法。 该方法包括用细硅颗粒和酚醛树脂等热固性树脂的混合物浸渍碳纤维，得到浸渍有混合物的碳纤维紧凑体，然后在约1400℃下进行热处理 惰性气氛使得热固性树脂被热分解以产生能够与硅颗粒反应的游离碳，而不影响嵌入基质中的碳纤维，这是由于硅颗粒与由树脂产生的游离碳的优先反应性而不是 降低碳纤维的增强效果。

公开(公告)号：US4929417A

公开(公告)日：1990-05-29

申请号：US341461

申请日：1989-04-21

申请人： Tadahiko Watanabe ,  Kazuhisa Shobu ,  Yukio Kai ,  Hideki Yamamoto ,  Eiichi Sudoh ,  Osamu Yagishita ,  Junshiro Hayakawa

发明人： Tadahiko Watanabe ,  Kazuhisa Shobu ,  Yukio Kai ,  Hideki Yamamoto ,  Eiichi Sudoh ,  Osamu Yagishita ,  Junshiro Hayakawa

IPC分类号： C04B35/58

CPC分类号： C04B35/645 ,  C04B35/58071 ,  C04B35/58078

摘要： A powder of at least one of TiB.sub.2, ZrB.sub.2 and HfB.sub.2 is mixed with at least one of Ti, Zr, Hf, TiB, ZrB and HfB, or with at least one of Ti, Zr, Hf, TiB, ZrB and HfB and a powder of boron, to prepare a mixed powder which can form a sintered product having a boron content of 65 to 67 atom %. Alternatively, a powder of at least one of Ti, Zr, Hf, TiB, ZrB and HfB is mixed with a powder of boron to prepare the mixed powder. The mixed powder may further contain up to a maximum of 30% by weight of a powder of AlN. Then, the mixed powder is sintered to make metal diboride ceramics. The lower-melting metal or compound which the mixed powder contains melts to form a liquid phase and enables the manufacture of a sintered product of high density by a customary sintering operation employing a low temperature. The sintered product having a boron content of 65 to 67 atom % consists solely of metal diboride crystals having a structure of the hexagonal system.

摘要翻译： 将TiB2，ZrB2和HfB2中的至少一种的粉末与Ti，Zr，Hf，TiB，ZrB和HfB中的至少一种，或与Ti，Zr，Hf，TiB，ZrB和HfB中的至少一种混合，以及 硼粉末，制成可形成硼含量为65〜67原子％的烧结体的混合粉末。 或者，将Ti，Zr，Hf，TiB，ZrB和HfB中的至少一种的粉末与硼粉末混合以制备混合粉末。 混合粉末还可以含有最多达30重量％的AlN粉末。 然后，将混合粉末烧结成金属二硼化物陶瓷。 混合粉末含有的低熔点金属或化合物熔融形成液相，并且能够通过采用低温的常规烧结操作制造高密度烧结产品。 硼含量为65〜67原子％的烧结体仅由具有六方晶系结构的金属二硼化物晶体构成。

公开(公告)号：US4704372A

公开(公告)日：1987-11-03

申请号：US712184

申请日：1985-03-15

申请人： Tadahiko Watanabe ,  Kazuhisa Shobu

发明人： Tadahiko Watanabe ,  Kazuhisa Shobu

IPC分类号： C04B35/58 ,  C04B35/52

CPC分类号： C04B35/58092 ,  C04B35/58021 ,  C04B35/58071 ,  C04B35/645

摘要： This invention relates to a high-strength molybdenum silicide-based ceramic material and a process for producing such ceramic material. A powder mixture obtained by adding to titanium carbonitride 0-100% by weight of a specific metal boride compound is added to powder of molybdenum silicide used as base component, and the obtained mixed powder composition is sintered. Both strength and density of molybdenum silicide are increased while maintaining its low-temperature sinterability.

摘要翻译： 本发明涉及一种高强度硅化钼系陶瓷材料及其制造方法。 向作为基础成分的硅化钼粉末中添加0-100重量％的特定金属硼化物的碳氮化钛所得的粉末混合物，烧结所得的混合粉末组合物。 钼硅化物的强度和密度均提高同时保持其低温烧结性。