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51. 发明授权

US5858523A Porous ceramic film and process for producing the same 失效
标题翻译：多孔陶瓷膜及其制造方法
公开(公告)号：US5858523A
公开(公告)日：1999-01-12
申请号：US538738
申请日：1995-10-03
申请人： Chihiro Kawai , Takahiro Matsuura , Akira Yamakawa
发明人： Chihiro Kawai , Takahiro Matsuura , Akira Yamakawa
IPC分类号： B01D71/02 , B01D39/20 , B01J35/04 , C04B38/00 , C04B41/45 , C04B41/52 , C04B41/81 , C04B41/85 , C04B41/89 , B32B29/02
CPC分类号： C04B41/009 , B01D39/2075 , B01D39/2086 , C04B41/4582 , C04B41/52 , C04B41/81 , C04B41/89 , C04B2111/00793 , Y10T428/249969 , Y10T428/24997 , Y10T428/24999 , Y10T428/252 , Y10T428/259 , Y10T442/69 , Y10T442/691
摘要： A porous ceramic film which is formed onto and bonded to an oxide layer provided on the surface of a porous base, the film composed of finely deposited particles comprising at least one compound including (a) at least one selected from the group consisting of Si, B and Al or the group consisting of the metals of the Groups IVa, Va and VIa and (b) at least one selected from the group consisting of C and N in which the particles are intertwined with each other and bonded to each other through the component of the oxide layer to form a three-dimensionally intertwined structure. This porous ceramic film is produced by forming the oxide layer on the base surface and then heating it to a temperature of at least of the liquid-phase formation temperature of the oxide layer in a gaseous atmosphere containing the above elements (a) and (b). The porous ceramic film has a high porosity, a good pressure resistance and a regulated pore size and is appropriate for a filter, a catalyst support, bioreactor or a structural material.
摘要翻译：一种多孔陶瓷膜，其形成在多孔基材的表面上并与其结合的氧化物层上，所述多孔陶瓷膜由精细沉积的颗粒构成，所述微粒包含至少一种化合物，所述至少一种化合物包括（a）选自Si， B和Al或由IVa，Va和VIa族金属组成的组，和（b）选自C和N中的至少一种，其中颗粒彼此缠结并通过氧化物层的组分以形成三维缠结的结构。该多孔陶瓷膜通过在基体表面上形成氧化物层，然后在含有上述元素（a）和（b）的气体气氛中将其加热至至少氧化物层的液相形成温度的温度）。多孔陶瓷膜具有高孔隙率，良好的耐压性和调节的孔径，适用于过滤器，催化剂载体，生物反应器或结构材料。

52. 发明授权

US5780374A High-strength porous silicon nitride body and process for producing the same 失效
标题翻译：高强度多孔氮化硅体及其制造方法
公开(公告)号：US5780374A
公开(公告)日：1998-07-14
申请号：US774612
申请日：1996-12-30
申请人： Chihiro Kawai , Takahiro Matsuura , Akira Yamakawa
发明人： Chihiro Kawai , Takahiro Matsuura , Akira Yamakawa
IPC分类号： C04B35/584 , C04B38/00 , C04B38/06
CPC分类号： C04B38/00 , C04B38/06
摘要： A high-porosity and high-strength porous silicon nitride body comprises columnar silicon nitride grains and an oxide bond phase containing 2 to 15 wt. %, in terms of oxide based on silicon nitride, of at least one rare earth element, and has an SiO.sub.2 /(SiO.sub.2 +rare earth element oxide) weight ratio of 0.012 to 0.65 and an average pore size of at most 3.5 .mu.m. The porous silicon nitride body is produced by compacting comprising a silicon nitride powder, 2 to 15 wt. %, in terms of oxide based on silicon nitride, of at least one rare earth element, and an organic binder while controlling the oxygen content and carbon content of said compact; and sintering said compact in an atmosphere comprising nitrogen at 1,650.degree. to 2,200.degree. C. to obtain a porous body having a three-dimensionally entangled structure made up of columnar silicon nitride grains and an oxide bond phase, and having an SiO.sub.2 /(SiO.sub.2 +rare earth element oxide) weight ratio of 0.012 to 0.65.
摘要翻译：高孔隙率和高强度多孔氮化硅体包括柱状氮化硅颗粒和含有2至15wt。至少一种稀土元素为基于氮化硅的氧化物的％，SiO 2 /（SiO 2 +稀土元素氧化物）的重量比为0.012〜0.65，平均孔径为3.5μm以下。多孔氮化硅体通过压制而制成，其包含氮化硅粉末，2〜15重量％％，基于氮化硅的氧化物，至少一种稀土元素和有机粘合剂，同时控制所述成型体的氧含量和碳含量; 并在包含氮气的气氛中在1650℃-2200℃下烧结所述成型体，得到由柱状氮化硅晶粒和氧化物结合相构成的三维缠结结构的多孔体，并具有SiO 2 /（SiO 2 + 稀土元素氧化物）重量比为0.012〜0.65。

53. 发明授权

US5482905A Aluminum nitride sintered body and method of producing the same 失效
标题翻译：氮化铝烧结体及其制造方法
公开(公告)号：US5482905A
公开(公告)日：1996-01-09
申请号：US178642
申请日：1994-01-05
申请人： Seiji Nakahata , Takahiro Matsuura , Kouichi Sogabe , Akira Yamakawa
发明人： Seiji Nakahata , Takahiro Matsuura , Kouichi Sogabe , Akira Yamakawa
IPC分类号： C04B35/581 , C04B35/58
CPC分类号： C04B35/581
摘要： An aluminum nitride sintered body comprising aluminum nitride crystals belonging to a Wurtzite hexagonal crystal system wherein the 3 axes a, b and c of the unit lattice of the crystal are defined such that the ratio b/a of the lengths of the axes b and a is 1.000 near the center of the crystal grain and lies within the range 0.997-1.003 in the vicinity of the grain boundary phase. Aluminum nitride sintered body is produced by sintering a molded body of a raw material powder having aluminum and nitrogen as its principal components at a temperature of 1700.degree.-1900.degree. C. in a non-oxidizing atmosphere having a partial pressure of carbon monoxide or carbon of not more than 200 ppm and then cooling the sintered body to 1500.degree. C. or a lower temperature at a rate of 5.degree. C./min or less. The aluminum nitride sintered body has a greatly improved thermal conductivity and, therefore, is suitable for heat slingers, substrates or the like for semiconductor devices.
摘要翻译：一种氮化铝烧结体，其包含属于纤锌矿六方晶系的氮化铝晶体，其中晶体的单位晶格的3轴a，b和c被定义为使得轴b和a的长度的比率b / a 在晶粒中心附近为1.000，位于晶界相附近的0.997-1.003范围内。氮化铝烧结体通过在具有一氧化碳或碳分压的非氧化性气氛中，在1700〜1900℃的温度下烧结以铝和氮为主要成分的原料粉末的成型体不超过200ppm，然后以5℃/分钟以下的速度将烧结体冷却至1500℃或更低温度。氮化铝烧结体具有大大提高的导热性，因此适用于半导体器件的热引脚，基板等。

54. 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。

55. 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。

56. 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。

57. 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。

58. 发明授权

US06315843B1 Method of manufacturing a sliding component 失效
标题翻译：制造滑动部件的方法
公开(公告)号：US06315843B1
公开(公告)日：2001-11-13
申请号：US09454640
申请日：1999-12-06
申请人： Takashi Matsuura , Akira Yamakawa
发明人： Takashi Matsuura , Akira Yamakawa
IPC分类号： C21D118
CPC分类号： F01L3/20 , C04B37/026 , C04B2235/52 , C04B2235/656 , C04B2235/666 , C04B2235/667 , C04B2235/963 , C04B2237/121 , C04B2237/125 , C04B2237/368 , C04B2237/406 , C04B2237/704 , C04B2237/708 , C04B2237/76 , F01L1/14 , F01L1/16 , F01L1/18 , F01L2101/00 , F01L2101/02 , F01L2103/00 , Y10S228/903
摘要： A method of manufacturing a sliding component comprising a main body made of a non-carburized heat-hardened steel and a member adapted to form at least one sliding face of sliding faces of the sliding component and heat-joined to the main body, in which the steel-made main body is heat-hardened before heat-joining to the member and the heat-joining between the main body made of the heat-hardened steel and the member is conducted at a lower temperature than the temperature at which the heat-hardened main body has been heat-hardened. The sliding component is superior in hardness and abrasion resistance and is readily manufactured at a reduced cost.
摘要翻译：一种滑动部件的制造方法，其特征在于，包括由非渗碳热硬化钢构成的主体和适于形成所述滑动部件的滑动面的至少一个滑动面并热连接到所述主体的部件，钢制主体在与构件接合之前被加热硬化，并且由热硬化钢构成的主体与构件之间的热连接在比加热硬化钢的温度低的温度下进行，硬化主体已经被加热硬化。滑动部件的硬度和耐磨性优异，并且以较低的成本容易地制造。

59. 发明授权

US6001759A Silicon nitride sintered body, method of preparing the same and nitrided compact 失效
标题翻译：氮化硅烧结体，其制备方法和氮化压实体
公开(公告)号：US6001759A
公开(公告)日：1999-12-14
申请号：US144116
申请日：1998-08-31
申请人： Michimasa Miyanaga , Seiji Nakahata , Akira Yamakawa
发明人： Michimasa Miyanaga , Seiji Nakahata , Akira Yamakawa
IPC分类号： C04B35/591 , C04B35/597 , C04B35/599
CPC分类号： C04B35/591 , C04B35/597
摘要： A silicon nitride sintered body prepared through a nitriding reaction of Si, consists of crystal grains mainly composed of silicon nitride and/or SIALON and a grain boundary phase. The grain boundary phase includes a first component including at least one element selected from a group of Na, K, Mg, Ca and Sr and a second component including at least one element selected from a group of Y and lanthanoid series elements. The molar ratio of the first component to the second component is in the range of 1:1 to 6:1 in terms of oxides. The mean breadth and the mean length of the crystal grains are not more than 0.1 .mu.m and not more than 3 .mu.m respectively, and the standard deviation of the mean length in the sintered body is within 1.5 .mu.m. Especially, the mean breadth of the crystal grains is at least 0.4 .mu.m and not more than 0.9 .mu.m.
摘要翻译：通过Si的氮化反应制备的氮化硅烧结体由主要由氮化硅和/或SIALON组成的晶粒和晶界相组成。晶界相包括包含选自Na，K，Mg，Ca和Sr中的至少一种元素的第一成分和包含选自Y和镧系元素的至少一种元素的第二成分。第一组分与第二组分的摩尔比以氧化物换算为1：1至6：1。晶粒的平均宽度和平均长度分别不大于0.1μm，不大于3μm，烧结体平均长度的标准偏差在1.5μm以内。特别是，晶粒的平均宽度至少为0.4μm，不大于0.9μm。

60. 发明授权

US5846460A Method of preparing silicon nitride porous body 失效
标题翻译：氮化硅多孔体的制备方法
公开(公告)号：US5846460A
公开(公告)日：1998-12-08
申请号：US686818
申请日：1996-07-26
申请人： Takahiro Matsuura , Chihiro Kawai , Akira Yamakawa
发明人： Takahiro Matsuura , Chihiro Kawai , Akira Yamakawa
IPC分类号： B01D39/20 , B01D71/02 , B01J27/24 , B01J32/00 , B01J35/04 , C04B35/584 , C04B38/00 , C04B38/04
CPC分类号： B01D67/0041 , B01D39/2079 , B01D71/02 , B01J27/24 , C04B38/00 , B01D2323/10 , C04B2111/00793 , C04B2111/0081
摘要： A silicon nitride ceramic porous body having excellent acid and alkali resistance, mechanical strength, and durability can be employed as a filter or a catalytic carrier. The silicon nitride porous body contains a plurality of silicon nitride crystal grains with pores formed in grain boundary parts thereof, or includes a body part and a pore part wherein the body part is formed by a plurality of silicon nitride crystal grains and the pore part forms a three-dimensional network structure. The body part is formed by at least 90 vol. % of silicon nitride crystal grains, which are directly bonded to each other. In order to prepare the finished ceramic porous body, a porous body compact which is mainly composed of silicon nitride, is brought into contact with an acid and/or an alkali so that a component other than silicon nitride is partially or entirely dissolved and removed from the compact. The compact is prepared from a mixed powder of silicon nitride powder and at least one of a rare earth compound powder, a transition metal compound powder, and a bismuth compound, which is heat treated in the temperature range from 1600.degree. C. to 2100.degree. C.
摘要翻译：可以使用具有优异的耐酸碱性，机械强度和耐久性的氮化硅陶瓷多孔体作为过滤器或催化载体。氮化硅多孔体含有在其晶界部分形成有孔的多个氮化硅晶粒，或包括主体部分和孔部分，其中主体部分由多个氮化硅晶粒形成并且孔部分形成一个三维网络结构。身体部位形成至少90体积。％的氮化硅晶粒直接接合。为了制备成品陶瓷多孔体，将主要由氮化硅组成的多孔体压块与酸和/或碱接触，使得除了氮化硅以外的成分部分或全部溶解并从其中去除紧凑型。该压块由氮化硅粉末和稀土化合物粉末，过渡金属化合物粉末和铋化合物中的至少一种的混合粉末制备，其在1600℃至2100℃的温度范围内进行热处理 C。

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