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1. 发明授权

US5521016A Light weight boron carbide/aluminum cermets 失效
标题翻译：轻质碳化硼/铝金属陶瓷
公开(公告)号：US5521016A
公开(公告)日：1996-05-28
申请号：US377559
申请日：1995-01-24
申请人： Aleksander J. Pyzik , Uday V. Deshmukh , Stephen D. Dunmead , Jack J. Ott , Timothy L. Allen , Harold E. Rossow
发明人： Aleksander J. Pyzik , Uday V. Deshmukh , Stephen D. Dunmead , Jack J. Ott , Timothy L. Allen , Harold E. Rossow
IPC分类号： C22C1/10 , C22C29/06 , C22C29/14 , B22F3/26
CPC分类号： C22C1/1036 , C22C29/062 , C22C29/14 , Y10T428/12049 , Y10T428/12056 , Y10T428/12146 , Y10T428/12167
摘要： Subject boron carbide to a passivation treatment at a temperature within a range of 1350.degree. C. to less than 1800.degree. C. prior to infiltration with a molten metal such as aluminum. This method allows control of kinetics of metal infiltration and chemical reactions, size of reaction products and connectivity of B.sub.4 C grains and results in cermets having desired mechanical properties.
摘要翻译：将碳化硼在熔融金属如铝浸渍之前，在1350℃至低于1800℃的温度下进行钝化处理。这种方法可以控制金属渗透和化学反应的动力学，反应产物的大小和B4C晶粒的连通性，并导致金属陶瓷具有所需的机械性能。

2. 发明授权

US5580666A Cemented ceramic article made from ultrafine solid solution powders, method of making same, and the material thereof 失效
标题翻译：由超细固溶粉末制成的水泥陶瓷制品，其制造方法及其材料
公开(公告)号：US5580666A
公开(公告)日：1996-12-03
申请号：US375759
申请日：1995-01-20
申请人： Ellen M. Dubensky , Stephen D. Dunmead , Daniel F. Carroll
发明人： Ellen M. Dubensky , Stephen D. Dunmead , Daniel F. Carroll
IPC分类号： C22C29/06 , C22C1/05 , C22C29/08 , B22F7/06
CPC分类号： C22C29/08 , Y10T428/12014 , Y10T428/12028 , Y10T428/12049 , Y10T428/12056 , Y10T428/1216
摘要： A multi-phase cemented ceramic article, method of making same, and the material thereof is disclosed which is useful for machining and forming of metals, including ferrous metals, titanium, aluminum and other metals. The article and its material preferably includes novel microstructures including platelets, a range of grain sizes which yields superior hardness and other characteristics, and a lower tungsten concentration within the binder phase than has been seen in the prior art. The preferred composition includes ultrafine WC, an ultrafine solid solution of (Ti, Ta, W)C, and a cobalt binder. Platelets are formed in-situ, eliminating the need to add them during manufacture for improving toughness.
摘要翻译：公开了一种多相胶合陶瓷制品，其制造方法及其材料，其可用于包括黑色金属，钛，铝和其它金属的金属的机械加工和成型。该物品及其材料优选包括新颖的微结构，包括血小板，一系列晶粒尺寸，其产生优异的硬度和其它特性，以及在粘结相中比在现有技术中已经看到的更低的钨浓度。优选的组合物包括超细WC，（Ti，Ta，W）C和钴粘合剂的超细固溶体。血小板原位形成，无需在制造过程中添加血小板来提高韧性。

3. 发明授权

US5563107A Densified micrograin refractory metal or solid solution solution (mixed metal) carbide ceramics 失效
$Densified micrograin refractory metal or solid solution solution (mixed metal) carbide ceramics$
标题翻译：致密微晶难熔金属或固溶体（混合金属）碳化物陶瓷
公开(公告)号：US5563107A
公开(公告)日：1996-10-08
申请号：US530289
申请日：1995-09-22
申请人： Ellen M. Dubensky , Stephen D. Dunmead , Robert T. Nilsson
发明人： Ellen M. Dubensky , Stephen D. Dunmead , Robert T. Nilsson
IPC分类号： C04B35/56
CPC分类号： C04B35/6455 , C04B35/5607 , C04B35/5611 , C04B35/5622 , C04B35/5626 , C04B35/58007 , C04B35/645
摘要： Densified refractory carbide and solid solution carbide materials that have an average grain size of less than 1.1 .mu.m, a density of at least 98% of theoretical may be prepared by any conventional densification procedure. Pressure densified tungsten carbide ceramic materials exhibit a simultaneous increase in Vickers hardness and a toughness (K.sub.IC) with decreasing average grain size.
摘要翻译： PCT No.PCT / US94 / 04780 Sec。 371日期1995年9月22日 102（e）1995年9月22日PCT PCT 1994年4月26日PCT公布。 WO94 / 25412 PCT公开日期1994年11月10日可以通过任何常规的致密化程序制备平均粒径小于1.1μm的密实度为理论值的至少98％的难熔碳化物和固溶体碳化物材料。压力致密化的碳化钨陶瓷材料随着平均晶粒尺寸的减小而显示维氏硬度和韧性（KIC）的同时增加。

4. 发明授权

US4946643A Dense, finely, grained composite materials 失效
标题翻译：浓密，细小的复合材料
公开(公告)号：US4946643A
公开(公告)日：1990-08-07
申请号：US412973
申请日：1989-09-26
申请人： Stephen D. Dunmead , Joseph B. Holt , Donald D. Kingman , Zuhair A. Munir
发明人： Stephen D. Dunmead , Joseph B. Holt , Donald D. Kingman , Zuhair A. Munir
IPC分类号： C22C1/05 , C22C29/06 , C22C29/10 , C22C29/14 , C22C32/00
CPC分类号： C22C1/058 , C22C29/06 , C22C29/10 , C22C29/14 , C22C32/0047
摘要： Dense, finely grained composite materials comprising one or more ceramic phase or phase and one or more metallic and/or intermetallic phase or phases are produced by combustion synthesis. Spherical ceramic grains are homogeneously dispersed within the matrix. Methods are provided, which include the step of applying mechanical pressure during or immediately after ignition, by which the microstructures in the resulting composites can be controllably selected.
摘要翻译：通过燃烧合成制备包含一个或多个陶瓷相或相以及一个或多个金属和/或金属间相或相的致密的细粒复合材料。球形陶瓷颗粒均匀分散在基体内。提供了方法，其包括在点火期间或之后立即施加机械压力的步骤，由此可以可控地选择所得复合材料中的微结构。

5. 发明授权

US5649278A Aluminum nitride, aluminum nitride containing solid solutions and aluminum nitride composites prepared by combustion synthesis 失效
标题翻译：通过燃烧合成制备的氮化铝，含氮化铝的固溶体和氮化铝复合材料
公开(公告)号：US5649278A
公开(公告)日：1997-07-15
申请号：US532729
申请日：1995-09-26
申请人： Stephen D. Dunmead , William G. Moore , Kevin E. Howard , Kevin C. Morse
发明人： Stephen D. Dunmead , William G. Moore , Kevin E. Howard , Kevin C. Morse
IPC分类号： C04B41/83 , C01B21/06 , C01B21/072 , C01B21/076 , C04B35/581 , C04B35/65 , C04B35/80 , C04B41/50 , C04B41/85 , C04B41/88 , B22F1/00
CPC分类号： C04B41/009 , C01B21/0602 , C01B21/072 , C01B21/0722 , C04B35/651 , C04B35/806 , C04B41/5089 , C04B41/85 , C01P2002/50 , C01P2004/10 , C01P2004/20 , C01P2004/54 , C01P2004/61 , C01P2004/62 , C01P2006/10 , C01P2006/12 , C01P2006/80 , Y10T428/12042
摘要： Aluminum nitride powder, aluminum nitride platelets, powdered solid solutions of aluminum nitride and at least one other ceramic material such as silicon carbide, and composites of aluminum nitride and transition metal borides or carbides are prepared by combustion synthesis at low gaseous nitrogen pressures. Porous bodies of aluminum nitride or composites of aluminum nitride and transition metal borides or carbides are also prepared by combustion synthesis at these pressures. The porous bodies are suitable for infiltration, either as formed or after being coated with at least one layer of a silicate material, by polymers or metals.
摘要翻译： PCT No.PCT / US94 / 00925 Sec。 371日期：1995年9月26日 102（e）1995年9月26日PCT PCT 1994年1月27日PCT公布。 WO94 / 22786 PCT公开号日期1994年10月13日氮化铝粉末，氮化铝片状粉末状固体溶液和至少一种其他陶瓷材料如碳化硅，以及氮化铝和过渡金属硼化物或碳化物的复合材料通过低气体的燃烧合成氮气压力。氮化铝的多孔体或氮化铝和过渡金属硼化物或碳化物的复合物也通过在这些压力下的燃烧合成来制备。多孔体适合于通过聚合物或金属形成或涂覆有至少一层硅酸盐材料之后的渗透。

6. 发明授权

US5612264A Methods for making WC-containing bodies 失效
标题翻译：制作含WC体的方法
公开(公告)号：US5612264A
公开(公告)日：1997-03-18
申请号：US555944
申请日：1995-11-13
申请人： Robert T. Nilsson , Richard T. Fox , Stephen D. Dunmead
发明人： Robert T. Nilsson , Richard T. Fox , Stephen D. Dunmead
IPC分类号： C04B35/56
CPC分类号： C04B35/6455 , C04B35/5607 , C04B35/5611 , C04B35/5622 , C04B35/5626 , C04B35/58007 , C04B35/645
摘要： A method of forming a low level carbon high-density tungsten carbide-containing material includes sintering a preform which contains tungsten carbide powder and has a composition such that the resulting sintered material has at most 6.05 weight percent tungsten-bound carbon based on the total weight of tungsten and tungsten-bound carbon. This low level of carbon may be achieved by, prior to the sintering step, oxidizing the tungsten carbide powder sufficiently to achieve the desired substoichiometric carbon level in the sintered product or by adding a carbon-lowering material selected from the group consisting of tungsten, ditungsten carbide, and tungsten oxide. Optionally, other materials can be present in the preform such as carbon-getter metals and compounds thereof. The carbon-getter metals are those metals of which the carbides thereof are more thermodynamically stable than monotungsten carbide.
摘要翻译：形成低碳碳高密度碳化钨的材料的方法包括烧结含有碳化钨粉末的预成型体，并且具有使得所得烧结材料基于总重量具有至多6.05重量％的钨结合碳的组成的钨和钨结合的碳。这种低水平的碳可以通过在烧结步骤之前充分氧化碳化钨粉末以达到烧结产品中所需的亚化学计量碳水平，或通过添加选自钨，二钨的碳的降低材料碳化物和氧化钨。任选地，其它材料可以存在于预成型体中，例如碳吸收剂金属及其化合物。碳吸收剂金属是其碳化物比单碳化钨更具有热力学稳定性的金属。

7. 发明授权

US5525556A Silicon nitride/silicon carbide composite powders 失效
标题翻译：氮化硅/碳化硅复合粉末
公开(公告)号：US5525556A
公开(公告)日：1996-06-11
申请号：US484539
申请日：1995-06-07
申请人： Stephen D. Dunmead , Alan W. Weimer , Daniel F. Carroll , Glenn A. Eisman , Gene A. Cochran , David W. Susnitzky , Donald R. Beaman , Kevin J. Nilsen
发明人： Stephen D. Dunmead , Alan W. Weimer , Daniel F. Carroll , Glenn A. Eisman , Gene A. Cochran , David W. Susnitzky , Donald R. Beaman , Kevin J. Nilsen
IPC分类号： C04B35/565 , C01B21/068 , C04B35/584 , C04B35/593 , C04B35/626 , C04B35/596 , C04B35/577
CPC分类号： B82Y30/00 , C01B21/0685 , C04B35/584 , C04B35/593 , C01P2004/62 , C01P2004/64 , C01P2006/10 , C01P2006/12
摘要： Prepare silicon nitride-silicon carbide composite powders by carbothermal reduction of crystalline silica powder, carbon powder and, optionally, crystalline silicon nitride powder. The crystalline silicon carbide portion of the composite powders has a mean number diameter less than about 700 nanometers and contains nitrogen. The composite powders may be used to prepare sintered ceramic bodies and self-reinforced silicon nitride ceramic bodies.
摘要翻译：通过结晶二氧化硅粉末，碳粉末和任选的结晶氮化硅粉末的碳热还原制备氮化硅 - 碳化硅复合粉末。复合粉末的结晶碳化硅部分具有小于约700纳米的平均数直径，并含有氮。复合粉末可用于制备烧结陶瓷体和自增强氮化硅陶瓷体。

8. 发明授权

US5380688A Method for making submicrometer carbides, submicrometer solid solution carbides, and the material resulting therefrom 失效
标题翻译：制备亚微米碳化物，亚微米固溶体碳化物的方法及由此产生的材料
公开(公告)号：US5380688A
公开(公告)日：1995-01-10
申请号：US104511
申请日：1993-08-09
申请人： Stephen D. Dunmead , William G. Moore , Alan W. Weimer , Glenn A. Eisman , John P. Henley
发明人： Stephen D. Dunmead , William G. Moore , Alan W. Weimer , Glenn A. Eisman , John P. Henley
IPC分类号： C01B31/30 , C01B31/34 , C04B35/56 , C22C1/05
CPC分类号： C04B35/5622 , B82Y30/00 , C01B31/303 , C01B31/305 , C01B31/34 , C04B35/5607 , C04B35/5611 , C04B35/5626 , C04B35/62615 , C04B35/6265 , C04B35/62675 , C04B35/6268 , C04B2235/3232 , C04B2235/3244 , C04B2235/3251 , C04B2235/3256 , C04B2235/3258 , C04B2235/3839 , C04B2235/3843 , C04B2235/3847 , C04B2235/424 , C04B2235/5445 , C04B2235/5454 , C04B2235/761
摘要： A method for making submicrometer metallic carbides and submicrometer solid solution metallic carbides from sources of at least one metallic oxide and carbon involves the rapid heating of a reactive particulate mixture of at least one metallic oxide and carbon in order to achieve a resulting particulate size of less than 1 micrometer. Submicrometer sized metallic carbides and solid solution metallic carbides have found great use in commercial ceramic applications. It has been found that the smaller sized particles produce a product having superior toughness and hardness. In addition, the submicrometer sized solid solution metallic carbide resulting from this method is also disclosed.
摘要翻译：从至少一种金属氧化物和碳的来源制造亚微米金属碳化物和亚微米固体金属碳化物的方法涉及快速加热至少一种金属氧化物和碳的反应性颗粒混合物，以获得较少的颗粒尺寸超过1微米。亚微米尺寸的金属碳化物和固溶金属碳化物在商业陶瓷应用中已被广泛使用。已经发现，较小尺寸的颗粒产生具有优异韧性和硬度的产品。此外，还公开了由该方法得到的亚微米尺寸的固溶体金属碳化物。

9. 发明授权

US5710382A Aluminum nitride, aluminum nitride containing solid solutions and aluminum nitride composites prepared by combustion synthesis and sintered bodies prepared therefrom 失效
标题翻译：通过燃烧合成制备的氮化铝，含氮化铝的固溶体和氮化铝复合材料，由其制备的烧结体
公开(公告)号：US5710382A
公开(公告)日：1998-01-20
申请号：US593310
申请日：1996-01-31
申请人： Stephen D. Dunmead , William G. Moore , Kevin E. Howard , Kevin C. Morse , Theresa A. Guiton
发明人： Stephen D. Dunmead , William G. Moore , Kevin E. Howard , Kevin C. Morse , Theresa A. Guiton
IPC分类号： C01B21/072 , C04B35/581 , C04B35/80 , C22C29/14 , B22F3/00 , C04B35/58
CPC分类号： C01B21/072 , C04B35/581 , C04B35/806 , C01P2004/10 , C01P2004/20 , C01P2004/61 , C01P2006/10 , C01P2006/12 , C01P2006/80 , Y10T428/12042
摘要： Aluminum nitride powder, aluminum nitride platelets, powdered solid solutions of aluminum nitride and at least one other ceramic material such as silicon carbide, and composites of aluminum nitride and transition metal borides or carbides are prepared by combustion synthesis at low gaseous nitrogen pressures. Porous bodies of aluminum nitride or composites of aluminum nitride and transition metal borides or carbides are also prepared by combustion synthesis at these pressures. The porous bodies are suitable for infiltration, either as formed or after being coated with at least one layer of a silicate material, by polymers or metals. The powders are also suitable for preparing dense sintered bodies. The aluminum nitride powder is also used to prepare AlN sintered bodies.
摘要翻译：通过在低气态氮气压力下的燃烧合成来制备氮化铝粉末，氮化铝薄片，氮化铝粉末状固溶体和至少一种其它陶瓷材料如碳化硅，以及氮化铝和过渡金属硼化物或碳化物的复合材料。氮化铝的多孔体或氮化铝和过渡金属硼化物或碳化物的复合物也通过在这些压力下的燃烧合成来制备。多孔体适合于通过聚合物或金属形成或涂覆有至少一层硅酸盐材料之后的渗透。粉末也适用于制备致密的烧结体。氮化铝粉末也用于制备AlN烧结体。

10. 发明授权

US5643843A Silicon nitride/silicon carbide composite densified materials prepared using composite powders 失效
标题翻译：使用复合粉末制备的氮化硅/碳化硅复合致密材料
公开(公告)号：US5643843A
公开(公告)日：1997-07-01
申请号：US678199
申请日：1996-07-12
申请人： Stephen D. Dunmead , Alan W. Weimer , Daniel F. Carroll , Glenn A. Eisman , Gene A. Cochran , David W. Susnitzky , Donald R. Beaman , Kevin J. Nilsen
发明人： Stephen D. Dunmead , Alan W. Weimer , Daniel F. Carroll , Glenn A. Eisman , Gene A. Cochran , David W. Susnitzky , Donald R. Beaman , Kevin J. Nilsen
IPC分类号： C04B35/565 , C01B21/068 , C04B35/584 , C04B35/593 , C04B35/626 , C04B35/577 , C04B35/596
CPC分类号： B82Y30/00 , C01B21/0685 , C04B35/584 , C04B35/593 , C01P2004/62 , C01P2004/64 , C01P2006/10 , C01P2006/12
摘要： Prepare silicon nitride-silicon carbide composite powders by carbothermal reduction of crystalline silica powder, carbon powder and, optionally, crystalline silicon nitride powder. The crystalline silicon carbide portion of the composite powders has a mean number diameter less than about 700 nanometers and contains nitrogen. The composite powders may be used to prepare sintered ceramic bodies and self-reinforced silicon nitride ceramic bodies.
摘要翻译：通过结晶二氧化硅粉末，碳粉末和任选的结晶氮化硅粉末的碳热还原制备氮化硅 - 碳化硅复合粉末。复合粉末的结晶碳化硅部分具有小于约700纳米的平均数直径，并含有氮。复合粉末可用于制备烧结陶瓷体和自增强氮化硅陶瓷体。

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