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1. 发明授权

US4762558A Production of reactive sintered nickel aluminide material 失效
标题翻译：反应性烧结镍铝化合物的生产
公开(公告)号：US4762558A
公开(公告)日：1988-08-09
申请号：US50914
申请日：1987-05-15
申请人： Randall M. German , Animesh Bose , David Sims
发明人： Randall M. German , Animesh Bose , David Sims
IPC分类号： B22F3/23 , C22C1/04 , B22F3/00
CPC分类号： C22C1/0433 , B22F3/23
摘要： Reactive sintering process for producing a shaped body containing the nickel aluminide compound Ni.sub.3 Al, which comprises sintering a compacted shaped mass containing an intimate mixture of substances, e.g. including elemental nickel powder and elemental aluminum powder in a stoichiometric atomic ratio generally corresponding to the compound Ni.sub.3 Al, by heating the mass, e.g. in a vacuum, to an elevated sintering temperature, e.g. 500-750.degree. C., sufficiently to initiate an exothermic reaction, and at a heating rate sufficiently for consequent progressive generation of a transient liquid below the melting point of the aluminum powder and at the corresponding eutectic temperature, and upon initiation of the exothermic reaction continuing the sintering sufficiently to form a densified shaped body containing the nickel aluminide compound Ni.sub.3 Al, and having a porosity of at most about 8%, or alternatively having an essentially fully densified structure where the heating is carried out under simultaneously applied mechanical pressure for hot isostatic compaction of the compacted shaped mass.
摘要翻译：用于生产含有镍铝化合物Ni3Al的成形体的反应性烧结方法，其包括烧结含有物质的紧密混合物的压实成形物质，例如，包括通常对应于化合物Ni3Al的化学计量原子比的元素镍粉和元素铝粉，通过加热该质量，例如在真空中，升高的烧结温度，例如 500-750℃，足以引发放热反应，并以足够的加热速率逐渐产生低于铝粉熔点并在相应共晶温度下的瞬时液体，并且在引发放热反应继续充分烧结以形成包含镍铝化合物Ni3Al的致密成形体，并且具有至多约8％的孔隙率，或者具有基本上完全致密化的结构，其中在同时施加的机械压力下进行热等静压压实成型块的压实。

2. 发明授权

US4851042A Hardness and strength of heavy alloys by addition of tantalum 失效
标题翻译：通过添加钽的重合金的硬度和强度
公开(公告)号：US4851042A
公开(公告)日：1989-07-25
申请号：US220515
申请日：1988-07-18
申请人： Animesh Bose , Randall M. German
发明人： Animesh Bose , Randall M. German
IPC分类号： C22C1/04 , F42B12/74
CPC分类号： C22C1/045 , F42B12/74
摘要： A tungsten heavy alloy system is modified by replacing from 2% to 10% of the tungsten by weight with tantalum to increase the strength and hardness characteristics for the alloy. This renders the alloy particularly useful for kinetic energy penetrators.
摘要翻译：通过用钽替代钨重量的2％至10％来改变钨重合金体系，以增加合金的强度和硬度特性。这使得该合金对于动能穿透器特别有用。

3. 发明授权

US4801330A High strength, high hardness tungsten heavy alloys with molybdenum additions and method 失效
标题翻译：高强度，高硬度钨重合金与钼的添加和方法
公开(公告)号：US4801330A
公开(公告)日：1989-01-31
申请号：US48703
申请日：1987-05-12
申请人： Animesh Bose , Randall M. German , David M. Sims
发明人： Animesh Bose , Randall M. German , David M. Sims
IPC分类号： C22C1/04 , F42B12/74 , B22F1/00
CPC分类号： C22C1/045 , F42B12/74
摘要： A tungsten heavy alloy system is modified by partial replacement of the tungsten with substantial amounts of molybdenum ranging from 2% to 16% by weight to produce a new alloy with greater strength and hardness and moderate ductility. This new alloy is particularly useful for kinetic energy penetrators. The process involved is liquid phase sintering in an atmosphere of dry hydrogen, then wet hydrogen, then argon, followed by heat treament at 1100.degree. C. with a water quench. The resulting alloy is further hardened by swaging and strain aging which, at certain levels of molybdenum, produces a material having hardness in excess of HRC 45.
摘要翻译：钨重质合金体系是通过部分替换钨，通过将重量百分比为2％至16％（重量）的钼进行部分替换，以产生具有更强的强度和硬度以及适度的延展性的新合金。这种新型合金特别适用于动能穿透器。所涉及的方法是在干燥氢气气氛中进行液相烧结，然后湿氢气，然后加入氩气，然后在1100℃下用水淬灭进行热处理。所得到的合金通过模锻和应变老化进一步硬化，其在某些水平的钼处产生硬度超过HRC 45的材料。

4. 发明授权

US06399018B1 Powdered material rapid production tooling method and objects produced therefrom 失效
标题翻译：粉末材料快速生产加工方法和由此产生的物体
公开(公告)号：US06399018B1
公开(公告)日：2002-06-04
申请号：US09293706
申请日：1999-04-16
申请人： Randall M. German , Timothy J. Weaver , Julian A. Thomas , Sundar V. Atre , Anthony Griffo
发明人： Randall M. German , Timothy J. Weaver , Julian A. Thomas , Sundar V. Atre , Anthony Griffo
IPC分类号： B22F700
CPC分类号： B22F3/22 , B22F3/26 , B22F2998/00 , C22C1/1015 , C22C1/1036 , Y10T428/12007 , B22F5/007 , B22F1/0014 , B22F2207/01
摘要： Solid objects are made by means of a novel multi-step forming, debinding, sintering and infiltrating process, using a metal-ceramic composition. In this process, the mixture is held for a period of time to degas and settle the powdered material from a liquid binder. The packed geometry is then heated to above the melting temperature of the binder to remove the binder portion of the solid geometry. Upon removal of the binder the binder-free solid geometry is raised to a temperature where the metal pre-sinters together into a three-dimensional rigid matrix with interconnected porosity to form a solid precursor. The porous matrix includes the particulate ceramic material and a first metal, which are at least partially sintered. A molten second metal is then introduced to the fill the porous matrix and form an infiltrated matrix. In addition to speed of production, improvements associated with this method include a solid object having improved thermal conductivity, hardness, wear resistance and reduced shrinkage as compared with the rapid tooling techniques taught in the prior art.
摘要翻译：通过使用金属 - 陶瓷组合物的新型多步骤成形，脱脂，烧结和渗透方法制备固体物体。在该方法中，将混合物保持一段时间以从液体粘合剂中脱气并沉淀粉末状材料。然后将包装的几何形状加热到粘合剂的熔融温度以上以除去固体几何形状的粘合剂部分。在去除粘合剂后，将不含粘合剂的固体几何形状升高到金属预先烧结成具有相互连接的多孔性的三维刚性基质以形成固体前体的温度。多孔基体包括颗粒陶瓷材料和至少部分烧结的第一金属。然后将熔融的第二金属引入填充多孔基质并形成渗透的基质。除了生产速度之外，与现有技术中教导的快速加工技术相比，与该方法相关的改进包括具有改善的导热性，硬度，耐磨性和减小的收缩率的固体物体。

5. 发明授权

US4612048A Dimensionally stable powder metal compositions 失效
标题翻译：尺寸稳定的粉末金属组合物
公开(公告)号：US4612048A
公开(公告)日：1986-09-16
申请号：US754741
申请日：1985-07-15
申请人： Randall M. German , Chaman Lall , Deepak S. Madan
发明人： Randall M. German , Chaman Lall , Deepak S. Madan
IPC分类号： B22F3/10 , C22C33/02 , C22C29/00
CPC分类号： C22C33/0264 , B22F3/1007
摘要： Powder metal compositions of nickel, molybdenum, boron, carbon, phosphorus and iron which exhibit low shrinkage on sintering.
摘要翻译：在烧结时表现出低收缩率的镍，钼，硼，碳，磷和铁的粉末金属组合物。

6. 发明授权

US09187809B2 Tough coated hard particles consolidated in a tough matrix material 有权
标题翻译：坚硬的硬质颗粒固结在坚韧的基质材料中
公开(公告)号：US09187809B2
公开(公告)日：2015-11-17
申请号：US12849711
申请日：2010-08-03
申请人： John M. Keane , Randall M. German
发明人： John M. Keane , Randall M. German
IPC分类号： C22C29/00 , C22C29/02 , B22F1/02 , C04B35/117 , C04B35/58 , C04B35/628 , C04B35/645 , C22C26/00
CPC分类号： C22C29/02 , B22F1/02 , B22F1/025 , C04B35/117 , C04B35/58021 , C04B35/62831 , C04B35/645 , C04B2235/3217 , C04B2235/3847 , C04B2235/3856 , C04B2235/3886 , C04B2235/96 , C22C26/00 , Y10T428/12014
摘要： Consolidated materials comprising a plurality of coated particles dispersed in a tough matrix material are disclosed. The coated particles include a plurality of core particles having an intermediate layer that substantially surrounds each of the core particles. An optional outer layer may be present on the intermediate layer. A matrix contains or substantially contains each of the coated particles, and is formed from at least one third compound including a mixture of W, WC, and/or W2C with Co. The amount of Co in the at least one third compound may range from greater than 0 to about 20 weight %. Methods for providing consolidated materials, and articles comprising such consolidated materials are also disclosed.
摘要翻译：公开了包含分散在坚韧基体材料中的多个涂覆颗粒的固结材料。涂覆的颗粒包括具有基本上围绕每个核心颗粒的中间层的多个芯颗粒。可选的外层可以存在于中间层上。基质包含或基本上包含每个涂覆的颗粒，并且由包含W，WC和/或W2C与Co的混合物的至少一种第三化合物形成。至少一种第三化合物中的Co的量可以为大于0至约20重量％。还公开了提供固结材料的方法和包括这种固结材料的制品。

7. 发明授权

US06458279B1 Fuel filter and production process 失效
标题翻译：燃油滤清器和生产过程
公开(公告)号：US06458279B1
公开(公告)日：2002-10-01
申请号：US09120301
申请日：1998-07-22
申请人： Roger Duffield , Randall M. German , Teh Fu Yen , Ronald G. Iacocca
发明人： Roger Duffield , Randall M. German , Teh Fu Yen , Ronald G. Iacocca
IPC分类号： B01D1504
CPC分类号： F02M37/22 , Y10S29/902 , Y10T29/49604
摘要： A fuel filter having a formulation of a stable intermetallic compound of materials such as tin and antimony. The filter may have an integral porous structure or may be in the form of particles. It removes trace metal ions such as Ca and Na ions.
摘要翻译：一种燃料过滤器，其具有诸如锡和锑之类的材料的稳定的金属间化合物的配方。过滤器可以具有整体多孔结构或者可以是颗粒的形式。它去除痕量金属离子如Ca和Na离子。

8. 发明授权

US6030472A Method of manufacturing aluminide sheet by thermomechanical processing of aluminide powders 失效
公开(公告)号：US6030472A
公开(公告)日：2000-02-29
申请号：US985246
申请日：1997-12-04
申请人： Mohammad R. Hajaligol , Clive Scorey , Vinod K. Sikka , Seetharama C. Deevi , Grier Fleischhauer , A. Clifton Lilly, Jr. , Randall M. German
发明人： Mohammad R. Hajaligol , Clive Scorey , Vinod K. Sikka , Seetharama C. Deevi , Grier Fleischhauer , A. Clifton Lilly, Jr. , Randall M. German
IPC分类号： B22F1/02 , B22F3/12 , B22F3/18 , B22F5/00 , B22F9/08 , C21D8/02 , C22C1/04 , C22C33/02 , C22C38/00 , C22C38/34 , C21D8/00
CPC分类号： C22C33/0278 , B22F3/18 , B22F5/006 , B22F9/082 , C21D8/0205 , C22C1/0491 , B22F2003/248 , B22F2009/0824 , B22F2009/088 , B22F2998/10 , C21D8/0236 , C21D8/0273
摘要： A powder metallurgical process of preparing a sheet from a powder having an intermetallic alloy composition such as an iron, nickel or titanium aluminide. The sheet can be manufactured into electrical resistance heating elements having improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The iron aluminide has an entirely ferritic microstructure which is free of austenite and can include, in weight %, 4 to 32% Al, and optional additions such as .ltoreq.1% Cr, .gtoreq.0.05% Zr.ltoreq.2% Ti, .ltoreq.2% Mo, .ltoreq.1% Ni, .ltoreq.0.75% C, .ltoreq.0.1% B, .ltoreq.1% submicron oxide particles and/or electrically insulating or electrically conductive covalent ceramic particles, .ltoreq.1% rare earth metal, and/or .ltoreq.3% Cu. The process includes forming a non-densified metal sheet by consolidating a powder having an intermetallic alloy composition such as by roll compaction, tape casting or plasma spraying, forming a cold rolled sheet by cold rolling the non-densified metal sheet so as to increase the density and reduce the thickness thereof and annealing the cold rolled sheet. The powder can be a water, polymer or gas atomized powder which is subjecting to sieving and/or blending with a binder prior to the consolidation step. After the consolidation step, the sheet can be partially sintered. The cold rolling and/or annealing steps can be repeated to achieve the desired sheet thickness and properties. The annealing can be carried out in a vacuum furnace with a vacuum or inert atmosphere. During final annealing, the cold rolled sheet recrystallizes to an average grain size of about 10 to 30 .mu.m. Final stress relief annealing can be carried out in the B2 phase temperature range.

9. 发明授权

US5330701A Process for making finely divided intermetallic 失效
标题翻译：精细分散金属间化合物的工艺
公开(公告)号：US5330701A
公开(公告)日：1994-07-19
申请号：US843605
申请日：1992-02-28
申请人： Karl G. Shaw , David E. Alman , Rene M. Cooper , Randall M. German , Kazuo P. McCoy
发明人： Karl G. Shaw , David E. Alman , Rene M. Cooper , Randall M. German , Kazuo P. McCoy
IPC分类号： B22F3/22 , C22C1/04 , B22F9/00
CPC分类号： B22F3/23 , C22C1/0491 , C22C26/00 , C22C32/0084 , B22F2003/248 , B22F2998/00 , B22F2998/10
摘要： A method is disclosed for controlling a self-propagating reaction in a particulate medium. The method comprises controlling the boundary heat flux of the reaction to produce reaction waves which travel through the particulate medium undergoing a self-propagating reaction. The method provides a product having a unitary, solid structure with layers of alternating density. Preferably the reaction is a reaction between two metals to produce an intermetallic compound or between a metal and a non-metal to produce a ceramic compound. Nickel aluminide is a preferred intermetallic compound. Also disclosed is a controlled reactive sintering process for producing a finely divided intermetallic compound comprising comminuting the layered body of intermetallic compound. Also disclosed are a process for preparing an abrasive surface composed of a nickel aluminide binder and an abrasive material, an injection molding composition for preparing shaped articles of nickel aluminide, and a process for injection molding shaped nickel aluminide articles of greater than 98% theoretical density.
摘要翻译：公开了一种用于控制颗粒介质中的自蔓延反应的方法。该方法包括控制反应的边界热通量以产生穿过经历自蔓延反应的颗粒介质的反应波。该方法提供了具有交替密度层的单一，固体结构的产品。优选地，反应是两种金属之间的反应以产生金属间化合物或金属与非金属之间的反应以产生陶瓷化合物。镍铝化合物是优选的金属间化合物。还公开了一种用于生产精细分散的金属间化合物的受控反应烧结方法，其包括粉碎金属间化合物的层状体。还公开了一种制备由镍铝化合物粘合剂和研磨材料组成的研磨表面的方法，用于制备镍铝化合物的成型制品的注射成型组合物，以及注射成型的成型镍铝制品的方法，其具有大于理论密度的98％。

10. 发明申请

US20110030440A1 TOUGH COATED HARD PARTICLES CONSOLIDATED IN A TOUGH MATRIX MATERIAL 有权
标题翻译：在粗糙矩阵材料中合并的粗糙的涂层硬质颗粒
公开(公告)号：US20110030440A1
公开(公告)日：2011-02-10
申请号：US12849711
申请日：2010-08-03
申请人： John M. Keane , Randall M. German
发明人： John M. Keane , Randall M. German
IPC分类号： B21C1/00
CPC分类号： C22C29/02 , B22F1/02 , B22F1/025 , C04B35/117 , C04B35/58021 , C04B35/62831 , C04B35/645 , C04B2235/3217 , C04B2235/3847 , C04B2235/3856 , C04B2235/3886 , C04B2235/96 , C22C26/00 , Y10T428/12014
摘要： Consolidated materials comprising a plurality of coated particles dispersed in a tough matrix material are disclosed. The coated particles include a plurality of core particles having an intermediate layer that substantially surrounds each of the core particles. An optional outer layer may be present on the intermediate layer. A matrix contains or substantially contains each of the coated particles, and is formed from at least one third compound including a mixture of W, WC, and/or W2C with Co. The amount of Co in the at least one third compound may range from greater than 0 to about 20 weight %. Methods for providing consolidated materials, and articles comprising such consolidated materials are also disclosed.
摘要翻译：公开了包含分散在坚韧基体材料中的多个涂覆颗粒的固结材料。涂覆的颗粒包括具有基本上围绕每个核心颗粒的中间层的多个芯颗粒。可选的外层可以存在于中间层上。基质包含或基本上包含每个涂覆的颗粒，并且由包含W，WC和/或W2C与Co的混合物的至少一种第三化合物形成。至少一种第三化合物中的Co的量可以为大于0至约20重量％。还公开了提供固结材料的方法和包括这种固结材料的制品。

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