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公开(公告)号：US5178647A
公开(公告)日：1993-01-12
申请号：US762081
申请日：1991-09-19
申请人： Michiyasu Komatsu , Tadashi Miyano , Syoji Okada , Shun-ichiro Tanaka , Kazuo Ikeda , Akio Sayano
发明人： Michiyasu Komatsu , Tadashi Miyano , Syoji Okada , Shun-ichiro Tanaka , Kazuo Ikeda , Akio Sayano
IPC分类号： C04B35/584 , C04B35/593 , C04B37/02
CPC分类号： C04B35/645 , C04B35/584 , C04B35/593 , C04B35/638 , C04B37/021 , C04B37/026 , C04B2235/3217 , C04B2235/3225 , C04B2235/3839 , C04B2235/3865 , C04B2235/3869 , C04B2235/3878 , C04B2235/3891 , C04B2235/767 , C04B2235/80 , C04B2235/85 , C04B2235/95 , C04B2235/96 , C04B2237/122 , C04B2237/124 , C04B2237/125 , C04B2237/368 , C04B2237/40 , C04B2237/407 , C04B2237/72 , C04B2237/76 , Y10T428/12576 , Y10T428/12806
摘要： A wear-resistant member formed comprises a sintered ceramic body essentially consisting of 0.1 to 15% by weight of at least one material selected from the group comprising molybdenum carbide, niobium carbide, hafnium carbide, tantalum carbide, tungsten carbide, molybdenum silicide, niobium silicide, hafnium silicide, tantalum silicide, tungsten silicide, molybdenum boride, niobium boride, hafnium boride, tantalum boride, and tungsten boride, 2 to 20% by weight of a boundary phase selected from the group consisting of Si--Y--Al--O--N and Si--Y--Al--O--N--B, and a balance of .beta.-silicon nitride. The wear-resistant member preferably has a metal member bonded to the sintered ceramic body. The wear-resistant member can perform high-load work such as high-speed cutting.
摘要翻译： 形成的耐磨构件包括基本上由0.1至15重量％的至少一种选自碳化钼，碳化铌，碳化铪，碳化钽，碳化钨，硅化钼，硅化铌的材料组成的烧结陶瓷体 ，硅化铪，硅化钽，硅化钨，硼化钼，硼化铌，硼化铪，硼化硼和硼化钨，2〜20重量％的选自Si-Y-Al-ON和 Si-Y-Al-ONB，其余为β-氮化硅。 耐磨构件优选具有结合到烧结陶瓷体的金属构件。 耐磨构件可以进行高速切割等高负载工作。
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公开(公告)号：US5238885A
公开(公告)日：1993-08-24
申请号：US764302
申请日：1991-09-24
IPC分类号： C04B35/584 , C04B35/597
CPC分类号： C04B35/597 , C04B35/584
摘要： Sintered bodies with the primary phase of .beta. and/or .alpha. prime sialon. In the sialon phase which is the primary phase, hafnium oxide and silicon carbide are dispersedly contained as dispersion phases. 1 to 60 parts by weight of hafnium oxide are contained in 100 parts by weight of the primary phase. 5 to 30 parts by weight of silicon carbide are contained in 100 parts by weight of the primary phase. Hafnium oxide suppresses decrease of sintering characteristic which is caused by silicon carbide. Thus, a large amount of silicon carbide can be added, thereby improving the fracture toughness value.
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公开(公告)号：US4671912A
公开(公告)日：1987-06-09
申请号：US831725
申请日：1986-02-21
IPC分类号： C04B35/622 , C04B35/584 , C04B35/626 , C04B35/634 , C04B35/636 , C04B35/638 , C04B33/32
CPC分类号： C04B35/63404 , C04B35/584 , C04B35/634 , C04B35/63432 , C04B35/636 , C04B35/638
摘要： A sintered ceramic body is manufactured first by preparing a composition containing a binder and a ceramic powder having a particle size distribution given such that 0 to 1 weight % of ceramic particles with a particle size of less than 0.2 .mu.m, 0 to 2 weight % of ceramic particles with a particle size of 0.2 .mu.m to less than 0.5 .mu.m, 5 to 15 weight % of ceramic particles with a particle size of 0.5 .mu.m to less than 1.0 .mu.m, 5 to 15 weight % of ceramic particles with a particle size of 1.0 .mu.m to less than 1.5 .mu.m, 5 to 15 weight % of ceramic particles with a particle size of 1.5 .mu.m to less than 2.0 .mu.m, and 50 to 80 weight % of ceramic particles with a particle size of not less than 2.0 .mu.m. The prepared composition is then injection-molded into a predetermined shape. The binder is removed from the molded body, and the binder-free molded body is sintered.
摘要翻译： 首先制备烧结陶瓷体，制备含有粘合剂和陶瓷粉末的组合物，该组合物的粒度分布为使得0〜1重量％的粒径小于0.2μm的陶瓷粒子，0〜2重量％ 的颗粒尺寸为0.2μm至小于0.5μm的陶瓷颗粒，5至15重量％的粒径为0.5μm至小于1.0μm的陶瓷颗粒，5至15重量％的具有 粒径为1.0μm以上且小于1.5μm的粒径为5μm以下，5〜15重量％的粒径为1.5μm以上且小于2.0μm的陶瓷粒子，以及50〜80重量％的具有粒径的陶瓷粒子 不小于2.0亩。 然后将制备的组合物注塑成预定形状。 将粘合剂从成形体中除去，无粘合剂的成型体进行烧结。
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公开(公告)号：US4284432A
公开(公告)日：1981-08-18
申请号：US78584
申请日：1979-09-21
IPC分类号： C04B35/584 , C04B35/593 , C04B35/58 , C04B35/50
CPC分类号： C04B35/593 , C04B35/584
摘要： Ceramic powder material mainly consists of silicon nitride wherein the content of oxygen combined with generally unavoidable impurities as measured by activation analysis accounts for less than 2% by weight. The above-mentioned ceramic powder material can also be prepared preferably by the method which comprises the step of heating raw ceramic powder material mainly consisting of silicon nitride to 1,400.degree. C. to 1,900.degree. C. in the presence of a separately prepared nonsintered molding of ceramic material or sintered molding of ceramic material having a porosity of at least 10%.
摘要翻译： 陶瓷粉末材料主要由氮化硅组成，其中通过活化分析测量的与通常不可避免的杂质结合的氧含量低于2重量％。 上述陶瓷粉末材料也可以优选通过以下方法制备：在单独制备的非烧结成型体的存在下，将主要由氮化硅组成的原料陶瓷粉末材料加热至1400℃至1900℃ 陶瓷材料或具有至少10％的孔隙率的陶瓷材料的烧结成型体。
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公开(公告)号：US4168449A
公开(公告)日：1979-09-18
申请号：US845716
申请日：1977-10-26
CPC分类号： H01J35/108 , H01J2235/084
摘要： A rotary anode for an X-ray tube comprising an anode body formed of graphite, a target layer formed of tungsten or alloy thereof, and an intermediate layer containing rhenium and molybdenum, the intermediate layer being interposed between and bonded with the anode body and target layer. This rotary anode may be obtained by forming over a target area of the graphite anode body a paste layer containing rhenium powder and molybdenum powder, laminating over the paste layer a layer formed of tungsten or alloy thereof, and then hot-pressing the resultant laminated body under vacuum or in an inert gas by means of a pressure transmitting powder.
摘要翻译： 一种用于X射线管的旋转阳极，包括由石墨形成的阳极体，由钨或其合金形成的靶层，以及包含铼和钼的中间层，所述中间层插入在阳极体中并与阳极体接合 层。 该旋转阳极可以通过在石墨阳极体的目标区域上形成包含铼粉末和钼粉末的糊料层，在糊料层上层叠由钨或其合金形成的层，然后热压所得到的层叠体 在真空下或通过压力传递粉末在惰性气体中。
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公开(公告)号：US4156051A
公开(公告)日：1979-05-22
申请号：US939773
申请日：1978-09-05
IPC分类号： C04B35/575 , C04B35/581 , C04B35/593 , C04B35/645 , C04B37/00 , F01D5/28 , B32B9/04 , B32B13/04 , C04B39/12
CPC分类号： C04B37/001 , C04B35/575 , C04B35/581 , C04B35/593 , C04B35/645 , C04B37/021 , F01D5/284 , C04B2235/6562 , C04B2235/6567 , C04B2237/365 , C04B2237/366 , C04B2237/368 , C04B2237/401 , C04B2237/64 , C04B2237/704 , C04B2237/76 , Y10T29/49321 , Y10T428/31663 , Y10T428/8305
摘要： Composite ceramic articles formed by integrally assembling a plurality of previously molded constituent members without applying an adhesive to their joints and designed to have a density than higher 98% of the theoretical value, and a flexural strength greater than 50 kg/cm.sup.2 at 1200.degree. C., and a method of producing ceramic articles of particularly complicated shape which comprises the steps of previously molding a plurality of constituent members of complicated shape and later integrally assembling said constituent members without applying an adhesive to their joints.
摘要翻译： 复合陶瓷制品通过将多个预先模制的构成构件整体地组装而不在其接头上施加粘合剂并且设计成具有比理论值高98％的密度，并且在1200℃下的弯曲强度大于50kg / cm 2 以及一种特别复杂形状的陶瓷制品的制造方法，其特征在于包括以下步骤：预先模制多个复杂形状的构成部件，然后在不对其接合部施加粘合剂的情况下整合组装所述构成部件。
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公开(公告)号：US4911870A
公开(公告)日：1990-03-27
申请号：US916935
申请日：1986-10-07
申请人： Michiyasu Komatsu , Tadashi Miyano
发明人： Michiyasu Komatsu , Tadashi Miyano
IPC分类号： C04B35/626 , C01B21/068 , C04B35/584
CPC分类号： C01B21/0685 , C04B35/584
摘要： A method for the production of a silicon nitride ceramics exhibiting high mechanical strength at elevated temperature is disclosed. This production is effected by a method which comprises preparing a mixture of silicon dioxide with excess carbon as a silicon nitride material for the silicon nitride ceramic, reducing this mixture in an atmosphere of nitrogen, roasting the resulting mixture of silicon nitride with carbon thereby giving rise to a silicon nitride-carbon mixture with the free carbon content thereof adjusted in the range of 0.1 to 3% by weight, molding the produced mixture in combination with a sintering aid in a prescribed shape, calcining the molded mixture, and thereafter sintering the calcined mass.
摘要翻译： 公开了一种用于生产在高温下表现出高机械强度的氮化硅陶瓷的方法。 该生产通过包括制备二氧化硅与过量碳的混合物作为氮化硅陶瓷的氮化硅材料的方法实现，在氮气气氛中还原该混合物，用碳进行焙烧所得到的氮化硅混合物，从而产生 将其游离碳含量调节在0.1〜3重量％范围内的氮化硅 - 碳混合物，将所制备的混合物与规定形状的烧结助剂组合，煅烧模塑混合物，然后烧结煅烧 质量
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8.发明授权
公开(公告)号：US4341874A
公开(公告)日：1982-07-27
申请号：US221813
申请日：1980-12-31
IPC分类号： C04B35/584 , C04B35/593 , C04B35/58
CPC分类号： C04B35/584 , C04B35/593
摘要： Ceramic powder material mainly consists of silicon nitride wherein the content of oxygen combined with generally unavoidable impurities as measured by activation analysis accounts for less than 2% by weight. The above-mentioned ceramic powder material can also be prepared preferably by the method which comprises the step of heating raw ceramic powder material mainly consisting of silicon nitride to 1,400.degree. C. to 1,900.degree. C. in the presence of a separately prepared nonsintered molding of ceramic material or sintered molding of ceramic material having a porosity of at least 10%.
摘要翻译： 陶瓷粉末材料主要由氮化硅组成，其中通过活化分析测量的与通常不可避免的杂质结合的氧含量低于2重量％。 上述陶瓷粉末材料也可以优选通过以下方法制备：在单独制备的非烧结成型体的存在下，将主要由氮化硅组成的原料陶瓷粉末材料加热至1400℃至1900℃ 陶瓷材料或具有至少10％的孔隙率的陶瓷材料的烧结成型体。
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公开(公告)号：US4172107A
公开(公告)日：1979-10-23
申请号：US800952
申请日：1977-05-26
IPC分类号： C04B35/575 , C04B35/581 , C04B35/593 , C04B35/645 , C04B37/00 , F01D5/28
CPC分类号： C04B35/581 , C04B35/575 , C04B35/593 , C04B35/645 , C04B37/001 , F01D5/284 , C04B2235/6562 , C04B2235/6565 , C04B2235/6567 , C04B2237/365 , C04B2237/366 , C04B2237/368 , C04B2237/64 , C04B2237/704 , C04B2237/76 , Y10S264/50
摘要： Composite ceramic articles formed by integrally assembling a plurality of previously molded constituent members without applying an adhesive to their joints and designed to have a density higher than 98% of the theoretical value, and a flexural strength greater than 50 kg/cm.sup.2 at 1200.degree. C., and a method of producing ceramic articles of particularly complex shape which comprises the steps of previously molding a plurality of constituent members of complex shape and later integrally assembling said constituent members without applying an adhesive to their joints.
摘要翻译： 复合陶瓷制品通过将多个预先模制的构成构件整体地组装而不在其接头上施加粘合剂并且设计成具有高于理论值的98％的密度，并且在1200℃下的弯曲强度大于50kg / cm 2 以及一种制造特别复杂形状的陶瓷制品的方法，其包括以下步骤：预先模制复数形状的多个构成构件，然后在不向其接头处施加粘合剂的情况下整合组装所述构成构件。
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10.发明授权
公开(公告)号：US5744410A
公开(公告)日：1998-04-28
申请号：US700358
申请日：1996-10-04
申请人： Michiyasu Komatsu , Kazuo Ikeda , Nobuyuki Mizunoya , Yoshitoshi Sato , Tatsuya Imaizumi , Kazuyuki Kondo
发明人： Michiyasu Komatsu , Kazuo Ikeda , Nobuyuki Mizunoya , Yoshitoshi Sato , Tatsuya Imaizumi , Kazuyuki Kondo
IPC分类号： C04B35/584 , C04B35/593 , H01L23/15
CPC分类号： H01L24/33 , C04B35/584 , C04B35/5935 , H01L23/15 , H01L2924/01004 , H01L2924/01005 , H01L2924/01006 , H01L2924/01011 , H01L2924/01012 , H01L2924/01013 , H01L2924/01018 , H01L2924/01019 , H01L2924/0102 , H01L2924/01021 , H01L2924/01023 , H01L2924/01024 , H01L2924/01025 , H01L2924/01029 , H01L2924/01033 , H01L2924/01038 , H01L2924/01039 , H01L2924/0104 , H01L2924/01041 , H01L2924/01042 , H01L2924/0105 , H01L2924/01056 , H01L2924/01057 , H01L2924/01058 , H01L2924/01059 , H01L2924/0106 , H01L2924/01064 , H01L2924/01066 , H01L2924/01067 , H01L2924/01068 , H01L2924/0107 , H01L2924/01072 , H01L2924/01073 , H01L2924/01074 , H01L2924/01105 , H01L2924/04953 , H01L2924/1301 , H01L2924/13034 , H01L2924/14 , H01L2924/181 , H01L2924/3025
摘要： A high thermal conductive silicon nitride sintered body of this invention is characterized by containing more than 7.5 wt % to at most 17.5 wt % of a rare earth element in terms of the amount of an oxide thereof, if necessary, at most 1.0 wt % of at least one of aluminum nitride and alumina, if necessary, 0.1-3.0 wt % of at least one compound selected from the group consisting of oxides, carbides, nitrides, silicides and borides of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W, and at most 0.3 wt % of Li, Na, K, Fe, Ca, Mg, Sr, Ba, Mn and B as impurity cationic elements in terms of total amount thereof, containing a .beta.-type silicon nitride crystal and a grain boundary phase. The sintered body has a ratio of a crystal compound phase in the grain boundary phase to the entire grain boundary phase of at least 20%, a porosity of at most 2.5% by volume, a thermal conductivity of at least 80 W/m.multidot.K and a three-point bending strength of at least 650 MPa at a room temperature.
摘要翻译： PCT No.PCT / JP96 / 01559 Sec。 371日期：1996年10月4日 102（e）日期1996年10月4日PCT PCT 1996年6月7日PCT公布。 出版物WO97 / 00837 日本1997年1月9日本发明的高导热性氮化硅烧结体的特征在于，如果需要，以其氧化物的量含有大于7.5重量％至最多17.5重量％的稀土元素，如果需要， 大多数1.0重量％的氮化铝和氧化铝中的至少一种，如果需要，0.1-3.0重量％的选自Ti，Zr，Hf，V的氧化物，碳化物，氮化物，硅化物和硼化物中的至少一种化合物 ，Nb，Ta，Cr，Mo和W以及0.3重量％以下的Li，Na，K，Fe，Ca，Mg，Sr，Ba，Mn和B作为杂质阳离子元素， β型氮化硅晶体和晶界相。 所述烧结体的晶界相与晶界相的结晶化合物相的比例为至少20％，孔隙率为2.5体积％以下，导热系数为80W / m×K以上， 在室温下三点弯曲强度至少为650MPa。
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