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31. 发明授权

US5384292A Silicon nitride composite sintered body and process for producing the same 失效
标题翻译：氮化硅复合烧结体及其制造方法
公开(公告)号：US5384292A
公开(公告)日：1995-01-24
申请号：US220457
申请日：1994-03-31
申请人： Jin-Joo Matsui , Osamu Komura , Akira Yamakawa , Masaya Miyake
发明人： Jin-Joo Matsui , Osamu Komura , Akira Yamakawa , Masaya Miyake
IPC分类号： C04B35/584 , C04B35/58
CPC分类号： C04B35/584
摘要： A silicon nitride composite sintered which comprises crystal grains of silicon nitride and/or sialon having an average minor axis length of 0.05 to 3 .mu.m and an aspect ratio of 10 or less and foreign particles dispersed in the crystal grains and/or the grain boundary phase, said particles having a thermal expansion coefficient of 5.times.10.sup.-6 /.degree.C. or more and an average particle size of 1 to 500 nm. The sintered body is produced by wet mixing silicon nitride powder, at least two sintering aids selected from among Y.sub.2 O.sub.3, Al.sub.2 O.sub.3, AlN and MgO and at least one compound selected from among the oxides, nitrides, carbides and silicides of the elements, excluding Si and C, of the groups IIa, IIIa, IVa, Va, VIa, IIb, IIIb and IVb of the Periodic Table to form a molding; and heat treating under the specified conditions. The sintered body can also be obtained by coating the surfaces of silicon nitride crystal grains with an organometallic compound convertible to the above foreign particles, heat treating and sintering with the sintering aid.
摘要翻译：一种氮化硅复合材料，其包含平均短轴长度为0.05〜3μm，长径比为10以下的氮化硅和/或赛隆的晶粒和分散在晶粒和/或晶界中的异物的氮化硅复合体所述颗粒的热膨胀系数为5×10 -6 /℃以上，平均粒径为1〜500nm。烧结体通过湿式混合氮化硅粉末，至少两种选自Y 2 O 3，Al 2 O 3，AlN和MgO的烧结助剂和选自元素的氧化物，氮化物，碳化物和硅化物中的至少一种化合物，除Si和 C，元素周期表IIa，IIIa，IVa，Va，VIa，IIb，IIIb和IVb族中的一种，形成一个成型体; 并在规定条件下进行热处理。烧结体也可以通过用可转化为上述外来颗粒的有机金属化合物涂覆氮化硅晶粒表面，用烧结助剂进行热处理和烧结来获得。

32. 发明授权

US5370907A Forming a metallized layer on an AlN substrate by applying and heating a paste of a metal composed of W and Mo 失效
标题翻译：通过施加和加热由W和Mo组成的金属的糊料，在AlN衬底上形成金属化层
公开(公告)号：US5370907A
公开(公告)日：1994-12-06
申请号：US147820
申请日：1993-11-02
申请人： Akira Yamakawa , Nobuo Ogasa
发明人： Akira Yamakawa , Nobuo Ogasa
IPC分类号： C04B41/51 , C04B41/88 , H05K1/09 , B05D3/02
CPC分类号： C04B41/5133 , C04B41/88 , H05K1/092
摘要： A metallized layer is to be formed on a surface of an aluminum nitride base material, which may be a sintered body or a nonsintered compact. A mixture is prepared from an oxide component consisting of at least one of Al.sub.2 O.sub.3, SiO.sub.2, CaO, and Y.sub.2 O.sub.3, an iron family component consisting of at least one of Fe, Co and Ni and high melting temperature metal consisting of W and Mo. The content of each component is within a specified range. A paste is prepared by adding an organic binder substance to the mixture. The paste is applied to the surface of the base material and heated under specified conditions to form a metallized layer having a high adhesive peel strength on the surface of the base material.
摘要翻译：在氮化铝基材的表面上形成金属化层，其可以是烧结体或非烧结体。由由Al 2 O 3，SiO 2，CaO和Y 2 O 3中的至少一种组成的氧化物组分，由Fe，Co和Ni中的至少一种组成的铁族成分和由W和Mo组成的高熔点金属制成混合物。每个组件的内容在指定范围内。通过向混合物中加入有机粘合剂物质制备糊料。将糊状物施加到基材的表面，并在特定条件下加热，以在基材的表面上形成具有高粘合剥离强度的金属化层。

33. 发明授权

US5369065A Silicon nitride sintered body and process for producing the same 失效
标题翻译：氮化硅烧结体及其制造方法
公开(公告)号：US5369065A
公开(公告)日：1994-11-29
申请号：US118023
申请日：1993-09-08
申请人： Masashi Yoshimura , Jin-Joo Matsui , Takehisa Yamamoto , Akira Yamakawa
发明人： Masashi Yoshimura , Jin-Joo Matsui , Takehisa Yamamoto , Akira Yamakawa
IPC分类号： C04B35/584 , C04B35/593 , C04B35/58
CPC分类号： C04B35/5935
摘要： A silicon sintered body comprising a matrix phase consisting of silicon nitride and a grain boundary phase in which the silicon nitride consists of 66 to 99% by volume of .beta.-Si.sub.3 N.sub.4 and/or .beta.'-sialon with the balance being .alpha.-Si.sub.3 N.sub.4 and/or .alpha.'-sialon, the .beta.-Si.sub.3 N.sub.4 and/or .beta.'-sialon consisting of hexagonal rod-like grains having a diameter of 500 nm or less in the minor axis and an aspect ratio 5 to 25, the .alpha.-Si.sub.3 N.sub.4 and/or .alpha.'-sialon consisting of equi-axed grains having an average diameter of 300 nm or less, and titanium compounds are contained within the grains of the matrix phase and in the grain boundary phase. The sintered body is produced by mixing (1) 100 parts by weight of .alpha.-Si.sub.3 N.sub.4 powder, (2) 0.1 to 10 parts by weight of titanium oxide having an average particle size of 100 nm or less and (3) 2 to 15 parts by weight, in total, of specified sintering aids; molding the resultant powder mixture into a green compact; subjecting the green compact to primary sintering and secondary sintering under the prescribed conditions.
摘要翻译：一种硅烧结体，包括由氮化硅和晶界相组成的基质相，其中氮化硅由66-99体积％的β-Si 3 N 4和/或β' - 赛隆组成，余量为α-Si 3 N 4和/ 或α' - 塞隆，β-Si 3 N 4和/或β'-Sialon由短轴具有500nm或更小直径的六角棒状晶粒和5至25的长宽比组成，α-Si 3 N 4和/ 或由平均直径为300nm以下的等轴晶粒组成的α'-Sialon，并且钛化合物包含在基质相的晶粒内和晶界相中。烧结体通过混合（1）100重量份的α-Si 3 N 4粉末，（2）0.1〜10重量份的平均粒径为100nm以下的氧化钛和（3）2〜15重量份总共为指定的烧结助剂; 将所得粉末混合物成型为生坯; 在规定的条件下对生坯进行一次烧结和二次烧结。

34. 发明授权

US5346869A Sintered silicon nitride bodies suitable for use as high impact materials 失效
标题翻译：适用于高冲击材料的烧结氮化硅体
公开(公告)号：US5346869A
公开(公告)日：1994-09-13
申请号：US175490
申请日：1993-12-29
申请人： Takao Nishioka , Takehisa Yamamoto , Kenji Matsunuma , Akira Yamakawa , Masaya Miyake
发明人： Takao Nishioka , Takehisa Yamamoto , Kenji Matsunuma , Akira Yamakawa , Masaya Miyake
IPC分类号： C04B35/584 , C04B35/593 , C04B35/597 , F01L1/20 , F02B3/06 , F02F7/00 , C04B35/58
CPC分类号： C04B35/584 , C04B35/5935 , C04B35/597 , F01L1/205 , F02F7/0087 , F02B3/06 , F05C2203/0895
摘要： Described are sintered silicon nitride bodies useful as materials for parts required to have strength, especially excellent impact strength for items such as automobile parts and machine parts. The sintered Si.sub.3 N.sub.4 bodies contain 80-98 wt. % of silicon nitride and have a porosity not higher than 3% and an shock compressive elasticity limit of at least 15 GPa.
摘要翻译：描述了可用作对于诸如汽车部件和机器部件的物品具有强度，特别优异的冲击强度的部件的材料的烧结氮化硅体。烧结的Si 3 N 4体含有80-98wt。％的氮化硅，并且具有不高于3％的孔隙率和至少15GPa的冲击压缩弹性极限值。

35. 发明授权

US5297365A Method of machining silicon nitride ceramics and silicon nitride ceramics products 失效
标题翻译：氮化硅陶瓷和氮化硅陶瓷制品的加工方法
公开(公告)号：US5297365A
公开(公告)日：1994-03-29
申请号：US921255
申请日：1992-07-29
申请人： Takao Nishioka , Kenji Matsunuma , Akira Yamakawa
发明人： Takao Nishioka , Kenji Matsunuma , Akira Yamakawa
IPC分类号： B24B1/00 , B24B7/22 , B24B19/22 , B24D3/00 , C04B35/584
CPC分类号： B24B19/22 , B24B1/00
摘要： An industrially feasible method of grinding silicon nitride ceramics, is disclosed and provides a sufficiently smooth surface. Namely, the surface has a maximum height-roughness Rmax of 0.1 microns or less and a ten-point mean roughness Rz of 0.05 microns. Further, with this method, surface damage can be repaired while grinding. The vertical cutting feed rate of a grinding wheel into a workpiece should be within the range of 0.005-0.1 micron for each rotation of the working surface of the wheel and change linearly or stepwise. The cutting speed of the grinding wheel in a horizontal (rotational) direction should be within the range of 25 to 75 m/sec. With this arrangement, the contact pressure and grinding heat that is generated between the workpiece and the hard abrasive grains during grinding are combined. In other words, mechanical and thermal actions are combined.
摘要翻译：公开了一种工业上可行的研磨氮化硅陶瓷的方法，并提供了足够光滑的表面。即，表面的最大高度粗糙度Rmax为0.1微米以下，十点平均粗糙度Rz为0.05微米。此外，通过该方法，可以在磨削时修复表面损伤。砂轮进入工件的垂直切削进给速率应在车轮工作表面的每次旋转时在0.005-0.1微米的范围内，并且线性或逐步改变。砂轮在水平（旋转）方向上的切割速度应在25至75米/秒的范围内。通过这种布置，在磨削期间在工件和硬磨粒之间产生的接触压力和磨削热被组合。换句话说，组合了机械和热动作。

36. 发明授权

US5293509A Sintered body of aluminum nitride 失效
标题翻译：氮化铝烧结体
公开(公告)号：US5293509A
公开(公告)日：1994-03-08
申请号：US87927
申请日：1993-07-06
申请人： Akira Yamakawa , Masaya Miyake , Hitoyuki Sakanoue , Koichi Sogabe
发明人： Akira Yamakawa , Masaya Miyake , Hitoyuki Sakanoue , Koichi Sogabe
IPC分类号： C04B35/581 , H01L23/15 , H05K1/03 , H01L23/02
CPC分类号： C04B35/581 , H01L23/15 , H01L2924/0002 , H05K1/0306 , Y10S428/901
摘要： The present invention provides a sintered body of aluminum nitride comprising (i) aluminum nitride as a main component and (ii) at least one component selected from the group consisting of Zr, Hf, V, Nb, Ta, Cr, Mo, W, Fe, Co, Ni, Nd, Ho, Ti and compounds thereof in the total amounts of not greater than 1.0 wt. % and not less than 0.01 wt. % in terms of elements on the basis of sintered body, the sintered body being colored and having a thermal conductivity of at least 150 W/mK. The sintered body is useful for the preparation of circuit boards having printed circuits thereon and highly heat-releasing ceramic packages for semiconductive devices.
摘要翻译：本发明提供一种氮化铝烧结体，其包含（i）氮化铝作为主要成分，和（ii）选自Zr，Hf，V，Nb，Ta，Cr，Mo，W， Fe，Co，Ni，Nd，Ho，Ti及其化合物的总量不大于1.0wt。％且不小于0.01wt。基于烧结体的元素的％，烧结体着色并具有至少150W / mK的导热率。该烧结体可用于制备其上具有印刷电路的电路板和用于半导体器件的高度散热的陶瓷封装。

37. 发明授权

US5085923A Heat-conductive aluminum nitride sintered body and method of manufacturing the same 失效
标题翻译：热传导性氮化铝烧结体及其制造方法
公开(公告)号：US5085923A
公开(公告)日：1992-02-04
申请号：US686658
申请日：1991-04-17
申请人： Akira Yamakawa , Masaya Miyake , Hitoyuki Sakanoue , Hisao Takeuchi , Koichi Sogabe , Akira Sasame
发明人： Akira Yamakawa , Masaya Miyake , Hitoyuki Sakanoue , Hisao Takeuchi , Koichi Sogabe , Akira Sasame
IPC分类号： C04B35/58 , C04B35/581 , H01L21/48 , H01L23/15 , H05K1/03
CPC分类号： H01L23/15 , C04B35/581 , C04B35/64 , C04B37/026 , H01L21/4807 , C04B2235/3208 , C04B2235/3224 , C04B2235/3225 , C04B2235/3229 , C04B2235/3865 , C04B2235/3895 , C04B2235/449 , C04B2235/5445 , C04B2235/6567 , C04B2235/6583 , C04B2235/721 , C04B2235/723 , C04B2235/761 , C04B2235/77 , C04B2235/85 , C04B2235/9607 , C04B2235/963 , C04B2237/122 , C04B2237/123 , C04B2237/366 , C04B2237/403 , C04B2237/407 , C04B2237/55 , C04B2237/72 , H01L2224/48091 , H01L24/48 , H01L2924/00014 , H01L2924/01014 , H01L2924/01019 , H01L2924/0102 , H01L2924/01021 , H01L2924/01039 , H01L2924/01046 , H01L2924/01057 , H01L2924/01063 , H01L2924/01067 , H01L2924/01068 , H01L2924/01078 , H01L2924/01079 , H01L2924/10253 , H01L2924/14 , H01L2924/15153 , H01L2924/15165 , H01L2924/16152 , H05K1/0306 , Y10S428/901 , Y10T428/24917
摘要： An aluminum nitride sintered body is mainly composed of aluminum nitride, contains 0.01 to 1.0 percent by weight of a rare earth element and 0.001 to 0.5 percent by weight of oxygen, and has thermal conductivity of at least 180 W/mK. According to a method of manufacturing such an aluminum nitride sintered body, aluminum nitride powder (201) is first prepared. At least one compound (203) containing a rare earth element is added to the aluminum nitride powder (201) to contain 0.01 to 1.0 percent by weight, in rare earth element conversion, of the compound, to be homogeneously mixed with each other. A formed body obtained by forming such mixed powder is sintered in a non-oxidizing atmosphere containing nitrogen at a temperature of 1500 to 2200.degree. C.

38. 发明授权

US4994418A Ceramic compact and a process for the production of the same 失效
标题翻译：陶瓷紧凑件和生产过程相同
公开(公告)号：US4994418A
公开(公告)日：1991-02-19
申请号：US453158
申请日：1989-12-18
申请人： Akira Yamakawa , Yoshihiko Doi , Masaya Miyake
发明人： Akira Yamakawa , Yoshihiko Doi , Masaya Miyake
IPC分类号： C04B35/58 , C04B35/584 , C04B35/591 , C04B35/80
CPC分类号： C04B35/584 , C04B35/591 , C04B35/806
摘要： A ceramic compact having a more excellent high temperature strength, toughness and reliability, which comprises a silicon nitride matrix and ceramic fibers uniformly dispersed in the matrix and orientated in a desired direction, said matrix and fibers being closely bonded by sintering, is provided. This compact is produced, for example, by preparing a shaped body of silicon in which ceramic fibers are uniformly dispersed and then bearing and nitriding the shaped body in a nitrogen atmosphere to form a fiber-reinforced silicon nitride sintered compact.

39. 发明授权

US4769350A Silicon nitride sintered material for cutting tools and process for making the same 失效
标题翻译：用于切削刀具的氮化硅烧结材料及其制造方法
公开(公告)号：US4769350A
公开(公告)日：1988-09-06
申请号：US102922
申请日：1987-09-30
申请人： Takao Nishioka , Akira Yamakawa , Masaya Miyake
发明人： Takao Nishioka , Akira Yamakawa , Masaya Miyake
IPC分类号： C04B35/584 , C04B35/593 , C04B35/58
CPC分类号： C04B35/584 , C04B35/593
摘要： A silicon nitride sintered material for cutting tools comprising from about 3 to 10 wt % of partially stablized zirconium oxide, from about 1 to 5 wt % of aluminum oxide, and from about 1 to 10 wt % of yttrium oxide, the balance being silicon nitride, and the process for making the same.

40. 发明授权

US4598053A Ceramic compacts 失效
标题翻译：陶瓷压块
公开(公告)号：US4598053A
公开(公告)日：1986-07-01
申请号：US706166
申请日：1985-02-27
申请人： Akira Yamakawa , Eiji Kamijo
发明人： Akira Yamakawa , Eiji Kamijo
IPC分类号： C04B35/486 , C04B35/48
CPC分类号： C04B35/486
摘要： A ceramic compact having a high transverse rupture strength is provided by a low cost sintering method. This ceramic compact comprises 55 to 96% by volume of a first component, 4 to 45% by volume of a second component and at most 3% by volume of unavoidable impurities:First Component: ZrO.sub.2 consisting of at least 80% by weight of at least one of tetragonal system and cubic system and the balance of mono-clinic system, in which at least one member selected from the group consisting of oxides of Group IIIa (Including Sc, Y, La) elements of the Periodic Table, CaO, MgO, and mixtures thereof are dissolved to form a solid solution.Second Component: at least one member selected from the group consisting of carbonitrides, oxycarbides, oxynitrides and carboxynitrides of group IVa (Including Ti, Zr, Hf), Va (Including V, Nb, Ta) and VIa (Including Cr, Mo, W) elements of the Periodic Table, and mixtures or solid solutions thereof.
摘要翻译：通过低成本烧结方法提供具有高横向断裂强度的陶瓷压块。该陶瓷压块包括55至96体积％的第一组分，4至45体积％的第二组分和至多3体积％的不可避免的杂质：第一组分：由至少80重量％的至少一种四方晶系和立方体系以及单一临床体系的余量，其中选自元素周期表IIIa族（包括Sc，Y，La）元素的氧化物中的至少一种，CaO，MgO ，及其混合物溶解形成固溶体。第二成分：选自第Ⅳa族（包括Ti，Zr，Hf），Va（包括V，Nb，Ta）和VIa（包括Cr，Mo，W）的碳氮化物，碳氧化物，氮氧化物和氮氧化物中的至少一种）元素，以及它们的混合物或固溶体。

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