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公开(公告)号：US06375708B1
公开(公告)日：2002-04-23
申请号：US09652175
申请日：2000-08-31
申请人： Leonid P. Dorfman , Michael J. Scheithauer , Muktesh Paliwal , David L. Houck , James R. Spencer
发明人： Leonid P. Dorfman , Michael J. Scheithauer , Muktesh Paliwal , David L. Houck , James R. Spencer
IPC分类号： C22C2704
CPC分类号： B22F1/025 , B22F1/0003 , B22F9/22 , B22F2998/00 , C01G41/00 , C04B41/5133 , C04B41/88 , C22C1/045 , H01H1/025 , H01H11/048 , H01L23/49883 , H01L2924/0002 , H05K1/092 , B22F3/1035 , H01L2924/00
摘要： A W—Cu—Ni alloy having thermophysical properties suitable for use in electrical contacts and electrodes is described. The alloy is formed by direct sintering of a powder blend comprising a tungsten-copper composite powder and a nickel powder. The tungsten-copper composite powder component of the blend comprises individual dual phase particles having a copper phase and a tungsten phase wherein the tungsten phase substantially encapsulates the copper phase. The method for direct sintering the W—Cu—Ni alloy substantially eliminates the formation of brittle intermetallics and slumping during sintering.
摘要翻译： 描述了具有适用于电触点和电极的热物性的W-Cu-Ni合金。 通过直接烧结包含钨 - 铜复合粉末和镍粉末的粉末混合物形成合金。 共混物的钨 - 铜复合粉末组分包括具有铜相和钨相的单独的双相颗粒，其中钨相基本上封装铜相。 直接烧结W-Cu-Ni合金的方法基本上消除了脆性金属间化合物的形成和烧结期间的塌陷。
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公开(公告)号：US5956560A
公开(公告)日：1999-09-21
申请号：US784159
申请日：1997-01-15
申请人： Leonid P. Dorfman , David L. Houck , Michael J. Scheithauer , Muktesh Paliwal , Gail T. Meyers , Frank J. Venskytis
发明人： Leonid P. Dorfman , David L. Houck , Michael J. Scheithauer , Muktesh Paliwal , Gail T. Meyers , Frank J. Venskytis
IPC分类号： B22F1/00 , B22F1/02 , B22F9/22 , C01G41/00 , C04B41/51 , C04B41/88 , C22C1/04 , H01H1/025 , H01L23/498 , H05K1/09
CPC分类号： C04B41/009 , B22F1/025 , B22F9/22 , C01G41/00 , C04B41/5133 , C04B41/88 , C22C1/045 , H01H1/025 , H01L23/49883 , B22F2998/00 , C04B2111/00844 , H01L2924/0002 , H05K1/092 , Y10T428/12181 , Y10T428/2993
摘要： A high performance W--Cu composite powder which is composed of individual particles having a tungsten phase and a copper phase wherein the tungsten phase substantially encapsulates the copper phase. The tungsten-coated copper composite powder may be pressed and sintered into W--Cu pseudoalloy articles having a homogeneous distribution of W and Cu phases without experiencing copper bleedout or it may be used in ceramic metallization for the electronics industry.
摘要翻译： 一种高性能的W-Cu复合粉末，其由具有钨相和铜相的单个颗粒组成，其中钨相基本上封装铜相。 可以将钨涂覆的铜复合粉末压制并烧结成具有均匀分布的W相和Cu相的W-Cu假合金制品，而不会经历铜渗出，或者可以用于电子工业的陶瓷金属化。
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公开(公告)号：US07045113B2
公开(公告)日：2006-05-16
申请号：US10247890
申请日：2002-09-20
申请人： Leonid P Dorfman , Michael J. Scheithauer , David L. Houck , Anna T. Spitsberg , Jeffrey N. Dann
发明人： Leonid P Dorfman , Michael J. Scheithauer , David L. Houck , Anna T. Spitsberg , Jeffrey N. Dann
CPC分类号： C01G39/00 , B22F1/025 , B22F3/001 , B22F2998/10 , C01P2002/72 , C01P2002/74 , C01P2004/03 , C01P2004/51 , C01P2004/61 , C01P2004/62 , C01P2004/84 , C01P2006/10 , C01P2006/12 , C01P2006/80 , C22C1/045 , Y10T428/12181 , B22F9/04 , B22F3/10
摘要： A Mo—Cu composite powder is provided which is comprised of individual finite particles each having a copper phase and a molybdenum phase wherein the molybdenum phase substantially encapsulates the copper phase. The composite powder may be consolidated by conventional P/M techniques and sintered without copper bleedout according to the method described herein to produce Mo—Cu pseudoalloy articles having very good shape retention, a high sintered density, and a fine microstructure.
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公开(公告)号：US07122069B2
公开(公告)日：2006-10-17
申请号：US09804876
申请日：2001-03-13
申请人： Leonid P Dorfman , Michael J. Scheithauer , David L. Houck , Anna T. Spitsberg , Jeffrey N. Dann
发明人： Leonid P Dorfman , Michael J. Scheithauer , David L. Houck , Anna T. Spitsberg , Jeffrey N. Dann
CPC分类号： C01G39/00 , B22F1/025 , B22F3/001 , B22F2998/10 , C01P2002/72 , C01P2002/74 , C01P2004/03 , C01P2004/51 , C01P2004/61 , C01P2004/62 , C01P2004/84 , C01P2006/10 , C01P2006/12 , C01P2006/80 , C22C1/045 , Y10T428/12181 , B22F9/04 , B22F3/10
摘要： A Mo—Cu composite powder is provided which is comprised of individual finite particles each having a copper phase and a molybdenum phase wherein the molybdenum phase substantially encapsulates the copper phase. The composite powder may be consolidated by conventional P/M techniques and sintered without copper bleedout according to the method described herein to produce Mo—Cu pseudoalloy articles having very good shape retention, a high sintered density, and a fine microstructure.
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公开(公告)号：US6103392A
公开(公告)日：2000-08-15
申请号：US559903
申请日：1995-11-17
申请人： Leonid P. Dorfman , David L. Houck , Michael J. Scheithauer , Gail T. Meyers , Frank J. Venskytis
发明人： Leonid P. Dorfman , David L. Houck , Michael J. Scheithauer , Gail T. Meyers , Frank J. Venskytis
IPC分类号： B22F1/00 , B22F1/02 , B22F9/22 , C01G41/00 , C04B41/51 , C04B41/88 , C22C1/04 , H01H1/025 , H01L23/498 , H05K1/09 , B22F9/20
CPC分类号： C04B41/009 , B22F1/025 , B22F9/22 , C01G41/00 , C04B41/5133 , C04B41/88 , C22C1/045 , H01H1/025 , H01L23/49883 , B22F2998/00 , C04B2111/00844 , H01L2924/0002 , H05K1/092 , Y10T428/12181 , Y10T428/2993
摘要： A high performance W--Cu composite powder is provided which is composed of individual particles having a tungsten phase and a copper phase wherein the tungsten phase substantially encapsulates the copper phase. The tungsten-coated copper composite powder may be pressed and sintered into W--Cu pseudoalloy articles having a homogeneous distribution of W and Cu phases without experiencing copper bleedout or it may be used in ceramic metallization for the electronics industry.
摘要翻译： 提供一种高性能的W-Cu复合粉末，其由具有钨相和铜相的单个颗粒组成，其中钨相基本上封装铜相。 可以将钨涂覆的铜复合粉末压制并烧结成具有均匀分布的W相和Cu相的W-Cu假合金制品，而不会经历铜渗出，或者可以用于电子工业的陶瓷金属化。
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公开(公告)号：US5470549A
公开(公告)日：1995-11-28
申请号：US361415
申请日：1994-12-22
IPC分类号： B22F1/02 , B22F9/22 , C01G41/00 , C04B41/51 , C04B41/88 , C22C1/04 , H01H1/025 , H01L23/498 , C01G3/00
CPC分类号： C01G41/00 , B22F1/025 , B22F9/22 , C04B41/5133 , C04B41/88 , C22C1/045 , H01H1/025 , H01L23/49883 , B22F2998/00 , H01L2924/0002
摘要： A method for making a tungsten-copper composite oxide wherein an amount of an ammonium tungstate and an amount of an oxide or hydroxide of copper are combined without milling to form a mixture. The unmilled mixture is then dehydrated and fired at a temperature and for a time sufficient to form the tungsten-copper composite oxide.
摘要翻译： 一种制备钨 - 铜复合氧化物的方法，其中将钨酸铵和一定量的铜的氧化物或氢氧化物的组合不经研磨以形成混合物。 然后将未磨碎的混合物在足以形成钨 - 铜复合氧化物的温度和时间下脱水和烧制。
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公开(公告)号：US5468457A
公开(公告)日：1995-11-21
申请号：US362024
申请日：1994-12-22
IPC分类号： B22F1/02 , B22F9/22 , C01G41/00 , C04B41/51 , C04B41/88 , C22C1/04 , H01H1/025 , H01L23/498 , C01G3/00
CPC分类号： H01L23/49883 , B22F1/025 , B22F9/22 , C01G41/00 , C04B41/5133 , C04B41/88 , C22C1/045 , H01H1/025 , B22F2998/00 , H01L2924/0002
摘要： A method of making a tungsten-copper composite oxide wherein an amount of an oxide of tungsten and an amount of an oxide of copper are combined to form a mixture, the oxide of tungsten or the oxide of copper, or both, being in a hydrated form. The mixture is then milled, dehydrated and fired at a temperature and for a time sufficient to form the tungsten-copper composite oxide, the time sufficient to form the tungsten-copper composite oxide being at least about one-half the time sufficient to form the tungsten-copper composite oxide from a mixture of tungsten trioxide, WO.sub.3, and cupric oxide, CuO, under substantially similar conditions.
摘要翻译： 一种制造钨 - 铜复合氧化物的方法，其中钨的氧化物和铜的氧化物的量被组合以形成混合物，钨的氧化物或铜的氧化物或两者的水合物 形成。 然后将混合物在足以形成钨 - 铜复合氧化物的温度和时间下研磨，脱水和焙烧，足以形成钨 - 铜复合氧化物的时间至少足以形成钨 - 铜复合氧化物的一半 来自三氧化钨WO 3和氧化铜CuO的混合物的钨 - 铜复合氧化物在基本相似的条件下。
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公开(公告)号：US5374802A
公开(公告)日：1994-12-20
申请号：US999623
申请日：1992-12-31
CPC分类号： H05H1/3405 , H05H1/34 , H05H2001/3431 , H05H2001/3468
摘要： A DC plasma arc generator and method of operation to reduce erosion of the internal parts. The arc generator includes a generally cylindrical anode and a generally cylindrical interelectrode having critical dimensions and spacing to allow introduction of vortical gas flows and stabilization of the primary arc thereby, reducing degradation and erosion of the generator.
摘要翻译： 直流等离子体电弧发生器和操作方法，以减少内部部件的侵蚀。 电弧发生器包括大致圆柱形的阳极和具有关键尺寸和间隔的大致圆柱形电极，以允许涡流气流的引入和主电弧的稳定化，从而减少发电机的劣化和侵蚀。
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9.发明授权
公开(公告)号：US5296670A
公开(公告)日：1994-03-22
申请号：US999642
申请日：1992-12-31
CPC分类号： H05H1/34 , H05H1/3405 , H05H2001/3431 , H05H2001/3468 , H05H2001/3478
摘要： A DC plasma arc generator and method of operation including a generally cylindrical anode divided into an arc constricting portion and an exit portion lined with refractory liners and having critical dimensions and spacing to allow introduction of vortical gas flows and stabilization of the primary arc thereby, reducing degradation and erosion of the generator.
摘要翻译： DC等离子体电弧发生器和操作方法，其包括分为电弧限制部分的大致圆柱形阳极和衬有耐火衬里的出口部分，并且具有临界尺寸和间隔，以允许引入涡流气流并且由此使主电弧稳定化 发电机的退化和侵蚀。
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