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公开(公告)号：US5242508A
公开(公告)日：1993-09-07
申请号：US869897
申请日：1992-04-15
CPC分类号： B22F9/082 , B22F1/02 , H01F1/0572 , H01F1/0574 , H01F1/0576
摘要： A method for making an isotropic permanent magnet comprises atomizing a melt of a rare earth-transition metal alloy (e.g., an Nd--Fe--B alloy enriched in Nd and B) under conditions to produce protectively coated, rapidly solidified, generally spherical alloy particles wherein a majority of the particles are produced/size classified within a given size fraction (e.g., 5 to 40 microns diameter) exhibiting optimum as-atomized magnetic properties and subjecting the particles to concurrent elevated temperature and elevated isotropic pressure for a time effective to yield a densified, magnetically isotropic magnet compact having enhanced magnetic properties and mechanical properties.
摘要翻译： 制造各向同性永磁体的方法包括在条件下使稀土 - 过渡金属合金（例如，富含Nd和B的Nd-Fe-B合金）的熔体雾化以产生保护性涂覆的，快速凝固的，通常为球形的合金颗粒 其中大部分颗粒被生产/尺寸分类为显示最佳的雾化磁性能的给定尺寸级分（例如，5至40微米直径），并使颗粒同时升高温度和提高的各向同性压力达到有效产生的时间 具有增强的磁特性和机械性能的致密化的磁各向同性磁体。
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公开(公告)号：US5240513A
公开(公告)日：1993-08-31
申请号：US593943
申请日：1990-10-09
CPC分类号： H01F1/0574 , B22F1/02 , H01F1/0572 , H01F1/0577 , H01F1/0578
摘要： An isotropic permanent magnet is made by mixing a thermally responsive, low viscosity binder and atomized rare earth-transition metal (e.g., iron) alloy powder having a carbon-bearing (e.g., graphite) layer thereon that facilitates wetting and bonding of the powder particles by the binder. Prior to mixing with the binder, the atomized alloy powder may be sized or classified to provide a particular particle size fraction having a grain size within a given relatively narrow range. A selected particle size fraction is mixed with the binder and the mixture is molded to a desired complex magnet shape. A molded isotropic permanent magnet is thereby formed. A sintered isotropic permanent magnet can be formed by removing the binder from the molded mixture and thereafter sintering to full density.
摘要翻译： 通过混合热响应性低粘度粘合剂和在其上具有含碳（例如石墨）层的雾化稀土过渡金属（例如铁）合金粉末来制备各向同性永磁体，其有利于粉末颗粒的润湿和结合 通过粘合剂。 在与粘合剂混合之前，可以将雾化合金粉末的尺寸或分级，以提供具有在给定的相对较窄范围内的晶粒尺寸的特定粒度分数。 将选定的粒度级分与粘合剂混合，并将混合物模制成所需的复合磁体形状。 由此形成各向同性永久磁铁。 烧结的各向同性永磁体可以通过从模塑混合物中除去粘合剂，然后烧结成全密度而形成。
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公开(公告)号：US5470401A
公开(公告)日：1995-11-28
申请号：US97442
申请日：1993-07-26
CPC分类号： H01F1/0574 , B22F1/02 , H01F1/0572 , H01F1/0577 , H01F1/0578
摘要： An isotropic permanent magnet is made by mixing a thermally responsive, low viscosity binder and atomized rare earth-transition metal (e.g., iron) alloy powder having a carbon-bearing (e.g., graphite) layer thereon that facilitates wetting and bonding of the powder particles by the binder. Prior to mixing with the binder, the atomized alloy powder may be sized or classified to provide a particular particle size fraction having a grain size within a given relatively narrow range. A selected particle size fraction is mixed with the binder and the mixture is molded to a desired complex magnet shape. A molded isotropic permanent magnet is thereby formed. A sintered isotropic permanent magnet can be formed by removing the binder from the molded mixture and thereafter sintering to full density.
摘要翻译： 通过混合热响应性低粘度粘合剂和在其上具有含碳（例如石墨）层的雾化稀土过渡金属（例如铁）合金粉末来制备各向同性永磁体，其有利于粉末颗粒的润湿和结合 通过粘合剂。 在与粘合剂混合之前，可以将雾化合金粉末的尺寸或分级，以提供具有在给定的相对较窄范围内的晶粒尺寸的特定粒度分数。 将选定的粒度级分与粘合剂混合，并将混合物模制成所需的复合磁体形状。 由此形成各向同性永久磁铁。 烧结的各向同性永磁体可以通过从模塑混合物中除去粘合剂，然后烧结成全密度而形成。
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公开(公告)号：US5589199A
公开(公告)日：1996-12-31
申请号：US328115
申请日：1994-10-24
CPC分类号： B22F9/082 , B22F1/0088 , B22F1/02 , C22C1/0441 , H01F1/0552 , H01F1/0572 , H01F1/0574 , B22F2998/00 , Y10T428/2991
摘要： Apparatus and method for making powder from a metallic melt by atomizing the melt to form droplets and reacting the droplets downstream of the atomizing location with a reactive gas. The droplets are reacted with the gas at a temperature where a solidified exterior surface is formed thereon and where a protective refractory barrier layer (reaction layer) is formed whose penetration into the droplets is limited by the presence of the solidified surface so as to avoid selective reduction of key reactive alloyants needed to achieve desired powder end use properties. The barrier layer protects the reactive powder particles from environmental constituents such as air and water in the liquid or vapor form during subsequent fabrication of the powder to end-use shapes and during use in the intended service environment.
摘要翻译： 通过使熔体雾化以形成液滴并使雾化位置下游的液滴与反应性气体反应从金属熔体制造粉末的装置和方法。 在其上形成凝固的外表面的温度下，液滴与气体反应，并且形成保护性耐火阻挡层（反应层），其中渗入液滴的渗透被固化表面的存在所限制，以避免选择性 减少需要达到所需粉末末端使用性能的关键反应性合金。 阻挡层在随后将粉末制成粉末至最终使用形状和使用期间在预期的使用环境中保护反应性粉末颗粒免受诸如空气和水的液体或蒸汽形式的环境成分的影响。
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5.发明授权
公开(公告)号：US5851317A
公开(公告)日：1998-12-22
申请号：US792285
申请日：1997-01-31
CPC分类号： C22C1/0416 , B22F1/0003 , B22F2998/00 , B22F2998/10 , B22F2999/00 , Y10T428/12486 , Y10T428/12736
摘要： A composite material comprises an aluminum or aluminum alloy matrix having generally spherical, atomized quasicrystalline aluminum-transition metal alloy reinforcement particles disposed in the matrix to improve mechanical properties. A composite article can be made by consolidating generally spherical, atomized quaiscrystalline aluminum-transition metal alloy particles and aluminum or aluminum alloy particles to form a body that is cold and/or hot reduced to form composite products, such as composite plate or sheet, with interfacial bonding between the quasicrystalline particles and the aluminum or aluminum alloy matrix without damage (e.g. cracking or shape change) of the reinforcement particles. The cold and/or hot worked compositehibits substantially improved yield strength, tensile strength, Young's modulus (stiffness).
摘要翻译： 复合材料包括铝或铝合金基体，其具有设置在基体中的通常具有球形的雾化的准晶体铝 - 过渡金属合金增强颗粒，以改善机械性能。 复合制品可以通过将通常为球形的，雾化的晶格铝过渡金属合金颗粒和铝或铝合金颗粒固结形成冷和/或热还原的主体，以形成复合材料制品，例如复合板或片， 准晶体颗粒与铝或铝合金基体之间的界面结合，而不会增强增强颗粒的损伤（例如开裂或变形）。 冷和/或热加工复合物抑制显着提高屈服强度，拉伸强度，杨氏模量（刚度）。
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公开(公告)号：US5523049A
公开(公告)日：1996-06-04
申请号：US332959
申请日：1994-11-01
IPC分类号： B22F3/10 , B22F3/22 , C04B35/52 , C04B35/532 , C04B35/565 , C04B35/581 , C04B35/583 , H01L21/48 , H01L23/373 , B22F3/14
CPC分类号： B22F3/225 , B22F3/1021 , B22F3/22 , C04B35/52 , C04B35/532 , C04B35/565 , C04B35/581 , C04B35/583 , H01L21/4803 , H01L23/3733 , B22F2998/00 , H01L2924/0002
摘要： A heat sink composed of thermally conductive particles dispersed in a monolithic structure having a continuous microstructure; and the method of forming a heat sink by molding the heat sink from a thermoplastic or epoxy material which has been filled with thermally conductive particles, debinding the molded heat sink and densifying the debound heat sink into a monolithic structure.
摘要翻译： 由分散在具有连续微结构的整体结构中的导热颗粒组成的散热器; 以及通过从已经填充有导热颗粒的热塑性或环氧材料模制散热器来形成散热器的方法，使模制的散热器脱模并将去离子散热器致密化成单片结构。
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7.发明授权Gas atomization synthesis of refractory or intermetallic compounds and supersaturated solid solutions 失效气体雾化合成难熔或金属间化合物和过饱和固体溶液
公开(公告)号：US5368657A
公开(公告)日：1994-11-29
申请号：US48138
申请日：1993-04-13
CPC分类号： C22C1/1042
摘要： A metallic melt is atomized using a high pressure atomizing gas wherein the temperature of the melt and the composition of the atomizing gas are selected such that the gas and melt react in the atomization spray zone to form a refractory or intermetallic compound in the as-atomized powder particles.A metallic melt is also atomized using a high pressure atomizing gas mixture gas wherein the temperature of the melt and the ratio of a reactive gas to a carrier gas are selected to form powder particles comprising a supersaturated solid solution of the atomic species of the reactive gas in the particles. The powder particles are then heat treated to precipitate dispersoids in-situ therein to form a dispersion strengthened material.
摘要翻译： 使用高压雾化气体使金属熔体雾化，其中熔体的温度和雾化气体的组成被选择为使得气体和熔体在雾化喷射区中反应以在雾化的气体中形成耐火材料或金属间化合物 粉末颗粒。 金属熔体还使用高压雾化气体混合气体雾化，其中熔体的温度和反应气体与载气的比率被选择以形成包含反应气体的原子种类的过饱和固溶体的粉末颗粒 在颗粒中。 然后将粉末颗粒热处理以原位沉淀分散体，形成分散强化材料。
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公开(公告)号：US5372629A
公开(公告)日：1994-12-13
申请号：US926151
申请日：1992-08-05
CPC分类号： B22F9/082 , B22F1/0088 , B22F1/02 , C22C1/0441 , H01F1/0552 , H01F1/0572 , H01F1/0574 , B22F2998/00 , Y10T428/2991
摘要： Apparatus and method for making powder from a metallic melt by atomizing the melt to form droplets and reacting the droplets downstream of the atomizing location with a reactive gas. The droplets are reacted with the gas at a temperature where a solidified exterior surface is formed thereon and where a protective refractory barrier layer (reaction layer) is formed whose penetration into the droplets is limited by the presence of the solidified surface so as to avoid selective reduction of key reactive alloyants needed to achieve desired powder end use properties. The barrier layer protects the reactive powder particles from environmental constituents such as air and water in the liquid or vapor form during subsequent fabrication of the powder to end-use shapes and during use in the intended service environment.
摘要翻译： 通过使熔体雾化以形成液滴并使雾化位置下游的液滴与反应性气体反应从金属熔体制造粉末的装置和方法。 在其上形成凝固的外表面的温度下，液滴与气体反应，并且形成保护性耐火阻挡层（反应层），其中渗入液滴的渗透被固化表面的存在所限制，以避免选择性 减少需要达到所需粉末末端使用性能的关键反应性合金。 阻挡层在随后将粉末制成粉末至最终使用形状和使用期间在预期的使用环境中保护反应性粉末颗粒免受诸如空气和水的液体或蒸汽形式的环境成分的影响。
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公开(公告)号：US5366688A
公开(公告)日：1994-11-22
申请号：US208809
申请日：1994-03-10
IPC分类号： B22F3/22 , C04B35/532 , C04B35/565 , C04B35/581 , C04B35/583 , H01L21/48 , H01L23/373 , B22F3/16
CPC分类号： B22F3/225 , B22F3/22 , C04B35/532 , C04B35/565 , C04B35/581 , C04B35/583 , H01L21/4871 , H01L23/3737 , B22F2998/00 , H01L2924/0002
摘要： A heat sink composed of metal particles dispersed in a binder or a sintered structure in which the binder is removed; and the method of forming a heat sink by molding the heat sink from a thermoplastic or epoxy material which has been filled with metal particles.
摘要翻译： 由分散在粘合剂中的金属颗粒或其中去除粘合剂的烧结结构构成的散热器; 以及通过从填充有金属颗粒的热塑性或环氧材料模制散热器来形成散热器的方法。
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10.发明授权
公开(公告)号：US5811187A
公开(公告)日：1998-09-22
申请号：US667485
申请日：1996-06-24
CPC分类号： B22F9/082 , B22F1/0088 , B22F1/02 , C22C1/0441 , H01F1/0552 , H01F1/0572 , H01F1/0574 , B22F2998/00 , Y10T428/2991
摘要： Apparatus and method for making powder from a metallic melt by atomizing the melt to form droplets and reacting the droplets downstream of the atomizing location with a reactive gas. The droplets are reacted with the gas at a temperature where a solidified exterior surface is formed thereon and where a protective refractory barrier layer (reaction layer) is formed whose penetration into the droplets is limited by the presence of the solidified surface so as to avoid selective reduction of key reactive alloyants needed to achieve desired powder end use properties. The barrier layer protects the reactive powder particles from environmental constituents such as air and water in the liquid or vapor form during subsequent fabrication of the powder to end-use shapes and during use in the intended service environment.
摘要翻译： 通过使熔体雾化以形成液滴并使雾化位置下游的液滴与反应性气体反应从金属熔体制造粉末的装置和方法。 在其上形成凝固的外表面的温度下，液滴与气体反应，并且形成保护性耐火阻挡层（反应层），其中渗入液滴的渗透被固化表面的存在所限制，以避免选择性 减少需要达到所需粉末末端使用性能的关键反应性合金。 阻挡层在随后将粉末制成粉末至最终使用形状和使用期间在预期的使用环境中保护反应性粉末颗粒免受诸如空气和水的液体或蒸汽形式的环境成分的影响。
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