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1. 发明申请

WO2023091169A1 ULTRA-HIGH STRENGTH MULTIPHASE HIGH-ENTROPY ALLOYS 审中-公开
公开(公告)号：WO2023091169A1
公开(公告)日：2023-05-25
申请号：PCT/US2022/000029
申请日：2022-11-21
申请人： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC. , NATIONAL TECHNOLOGY & ENGINEERING SOLUTIONS OF SANDIA, LLC
发明人： ANDERSON, Iver, E. , WHITE, Emma, Marie Hamilton , JOHNSON, Duane , ARGIBAY, Nicolas , KUSTAS, Andrew, B. , CHANDROSS, Michael , PUCKETT, Raymond, V.
IPC分类号： C22C21/00 , C22C14/00 , C22F1/04 , C22F1/18 , B22F3/10 , B33Y10/00
摘要： Refractory-reinforced multiphase high entropy alloys (RHEAs) advantageously providing high strength and fracture toughness in an as-AM deposited condition and other conditions are described.

2. 发明申请

WO2004046409A3 PERMANENT MAGNET ALLOY WITH IMPROVED HIGH TEMPERATURE PERFORMANCE 审中-公开
公开(公告)号：WO2004046409A3
公开(公告)日：2004-06-03
申请号：PCT/US2003/036464
申请日：2003-11-13
申请人： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC. , McCALLUM, Ralph, W. , XU, Youwen , KRAMER, Matthew, J. , ANDERSON, Iver, E. , DENNIS, Kevin, W.
发明人： McCALLUM, Ralph, W. , XU, Youwen , KRAMER, Matthew, J. , ANDERSON, Iver, E. , DENNIS, Kevin, W.
IPC分类号： H01F1/03
摘要： A permanent magnet material is provided and includes a major phase represented by MRE 2 Tr 14 X wherein MRE comprises Y and at least one other rare earth element with Y being present as 15% or more of the MRE on an atomic basis, Tr is a transition element, and X is an element selected from the group consisting of B and C.

3. 发明申请

WO1996013350A1 HEAT SINK AND METHOD OF FABRICATING 审中-公开
标题翻译：散热和制作方法
公开(公告)号：WO1996013350A1
公开(公告)日：1996-05-09
申请号：PCT/US1995013964
申请日：1995-10-31
申请人： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
发明人： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC. , TERPSTRA, Robert, L. , LOGRASSO, Barbara, K. , ANDERSON, Iver, E. , MOORE, Jeffrey, A.
IPC分类号： B22F03/16
CPC分类号： B22F3/225 , B22F3/1021 , B22F3/22 , B22F2998/00 , C04B35/52 , C04B35/532 , C04B35/565 , C04B35/581 , C04B35/583 , H01L21/4803 , H01L23/3733 , H01L2924/0002 , H01L2924/00
摘要： A heat sink (11) composed of thermally conductive particles dispersed in a monolithic structure having a continuous microstructure; and the method of forming a heat sink (11) 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：散热器（11）由分散在具有连续微结构的整体结构中的导热颗粒组成; 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（11）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。

4. 发明申请

WO1992005902A1 ENVIRONMENTALLY STABLE REACTIVE ALLOY POWDERS AND METHOD OF MAKING SAME 审中-公开
标题翻译：环境稳定的反应性合金粉及其制备方法
公开(公告)号：WO1992005902A1
公开(公告)日：1992-04-16
申请号：PCT/US1991007428
申请日：1991-10-08
申请人： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
发明人： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC. , ANDERSON, Iver, E.
IPC分类号： B22F09/08
CPC分类号： B22F9/082 , B22F1/0088 , B22F1/02 , B22F2998/00 , C22C1/0441 , H01F1/0552 , H01F1/0572 , H01F1/0574 , Y10T428/2991 , B22F1/0048
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 solidifed 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。在其上形成固化的外表面的温度下，液滴与气体反应，并且其中形成保护性难熔阻挡层（反应层），其中渗入液滴的渗透受固化表面的存在的限制，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。

5. 发明申请

WO1992006479A1 METHOD OF MAKING PERMANENT MAGNETS 审中-公开
标题翻译：制造永磁体的方法
公开(公告)号：WO1992006479A1
公开(公告)日：1992-04-16
申请号：PCT/US1991007431
申请日：1991-10-08
申请人： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
发明人： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC. , LOGRASSO, Barbara, K. , ANDERSON, Iver, E.
IPC分类号： H01F01/053
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. The figure illustrates schematically the method of the present invention.
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/尺寸分类为显示出最佳的雾化磁性能的给定尺寸级分（例如5至40微米直径），并使颗粒同时升高的温度和升高的各向同性压力达到有效产生具有增强的磁特性和机械性能的致密的磁各向同性磁体。该图示意性地示出了本发明的方法。

6. 发明申请

WO1992006478A1 METHOD OF MAKING BONDED OR SINTERED PERMANENT MAGNETS 审中-公开
标题翻译：制造粘结或烧结永磁体的方法
公开(公告)号：WO1992006478A1
公开(公告)日：1992-04-16
申请号：PCT/US1991007429
申请日：1991-10-08
申请人： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
发明人： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC. , LOGRASSO, Barbara, K. , ANDERSON, Iver, E.
IPC分类号： H01F01/02
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.

7. 发明申请

WO1994015697A1 POWDER COLLECTION APPARATUS/METHOD 审中-公开
标题翻译：粉末收集装置/方法
公开(公告)号：WO1994015697A1
公开(公告)日：1994-07-21
申请号：PCT/US1993012710
申请日：1993-12-22
申请人： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
发明人： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC. , ANDERSON, Iver, E. , TERPSTRA, Robert, L. , MOORE, Jeffrey, A.
IPC分类号： B01D45/12
CPC分类号： B01D50/004 , B01D45/12 , B22F9/08
摘要： Device for separating and collecting (2) ultrafine atomized powder from the gas stream of a gas atomizing apparatus (1) comprises a housing (60) having an interior wall (62) oriented at an angle relative to horizontal so as to form a downwardly converging, conical expansion chamber (64), an inlet conduit (50) communicated to the expansion chamber (64) proximate an upper region thereof for receiving the gas stream, and an outlet (66) proximate a lower region of the expansion chamber (64). The inlet conduit (50) is oriented at a compound inclined angle (with respect to horizontal) selected to promote separation and collection of powder from the gas stream in the expansion chamber (64). The compound angle comprises a first entrance angle that is greater than the angle of repose of the powder on the housing interior wall (62) such that any powder accumulation in the inlet conduit (50) tends to flow down the wall toward the outlet (66). The second angle is selected generally equal to the angle of the housing interior wall (62) measured from the same horizontal plane so as to direct the gas stream into the expansion chamber (64) generally tangent to the housing interior wall (62) to establish a downward swirling gas stream flow in the expansion chamber (64). A powder collection container (68) is communicated to the outlet (66) of the expansion chamber (64) to collect the powder for further processing.
摘要翻译：用于从气体雾化装置（1）的气流中分离和收集（2）超细雾化粉末的装置包括具有相对于水平方向成一定角度定向的内壁（62）的壳体（60），以形成向下收敛，锥形膨胀室（64），邻近其上部区域连接到膨胀室（64）的入口管道（50），用于接收气流;以及靠近膨胀室（64）的下部区域的出口（66）。入口管道（50）以选择的复合倾斜角（相对于水平）定向，以促进从膨胀室（64）中的气流中分离和收集粉末。复合角度包括大于粉末在壳体内壁（62）上的静止角的第一入射角，使得入口导管（50）中的任何粉末积聚趋向于朝着出口（66）向下流动）。所述第二角度通常等于从同一水平面测量的壳体内壁（62）的角度，以便将气流引导到通常与壳体内壁（62）相切的膨胀室（64）中，以建立在膨胀室（64）中向下旋转的气流流动。粉末收集容器（68）与膨胀室（64）的出口（66）连通，以收集粉末进一步处理。

8. 发明申请

WO1992005903A1 A MELT ATOMIZING NOZZLE AND PROCESS 审中-公开
标题翻译：熔融喷雾和过程
公开(公告)号：WO1992005903A1
公开(公告)日：1992-04-16
申请号：PCT/US1991007430
申请日：1991-10-08
申请人： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
发明人： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC. , ANDERSON, Iver, E. , FIGLIOLA, Richard, S. , MOLNAR, Holly, Morton
IPC分类号： B22F09/08
CPC分类号： B22F9/082
摘要： High pressure atomizing nozzle includes a high pressure gas manifold having a divergent expansion chamber between a gas inlet and arcuate manifold segment to minimize standing shock wave patterns in the manifold and thereby improve filling of the manifold with high pressure gas for improved melt atomization. The atomizing nozzle is especially useful in atomizing rare earth-transition metal alloys to form fine powder particles wherein a majority of the powder particles exhibit particle sizes having near-optimum magnetic properties.

9. 发明申请

WO1991019585A1 HIGH STRENGTH-HIGH CONDUCTIVITY Cu-Fe COMPOSITES PRODUCED BY POWDER COMPACTION/MECHANICAL REDUCTION 审中-公开
标题翻译：通过粉末压实/机械降低生产的高强度高导电性Cu-Fe复合材料
公开(公告)号：WO1991019585A1
公开(公告)日：1991-12-26
申请号：PCT/US1991003532
申请日：1991-05-20
申请人： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
发明人： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC. , VERHOEVEN, John, D. , SPITZIG, William, A. , GIBSON, Edwin, D. , ANDERSON, Iver, E.
IPC分类号： B22F03/18
CPC分类号： C22C49/00 , C22C1/0425 , C22C47/14 , H01H1/025
摘要： A particulate mixture of Cu and Fe is compacted and mechanically reduced to form an ''in situ'' Cu-Fe composite having high strength and high conductivity. Compaction and mechanical reduction of the particulate mixture are carried out at a temperature and time at temperature selected to avoid dissolution of Fe into the Cu matrix particulates to a harmful extend that substantially degrades the conductivity of the Cu-Fe composite.

10. 发明公开

EP0504397A1 METHOD OF MAKING PERMANENT MAGNETS 失效
标题翻译：过程永磁体。
公开(公告)号：EP0504397A1
公开(公告)日：1992-09-23
申请号：EP92900166.0
申请日：1991-10-08
申请人： IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
发明人： LOGRASSO, Barbara, K. , ANDERSON, Iver, E.
IPC分类号： B22F3 , B22F1 , B22F9 , H01F1 , H01F41
CPC分类号： B22F9/082 , B22F1/02 , H01F1/0572 , H01F1/0574 , H01F1/0576
摘要： Procédé de fabrication d'un aimant permanent isotrope consistant à atomiser une masse en fusion d'un alliage de métal de transition et de terre rare (par ex. un alliage Nd-Fe-B enrichi en Nd et B) dans des conditions permettant de produire des particules d'alliage généralement sphériques, se solidifiant rapidement et pourvues d'un revêtement de protection, dont la majorité est produite/tamisée dans le cadre d'une fraction granulométrique donnée (par ex. un diamètre de 5 à 40 microns) et présente à l'état atomisé des propriétés magnétiques optimales, puis à soumettre lesdites particules à une température et une pression isotrope élevées simultanément pendant un laps de temps suffisant pour produire un comprimé d'aimant magnétiquement isotrope et dense, dont les caractéristiques magnétiques et mécaniques sont accrues. La figure illustre schématiquement le procédé de l'invention.

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