公开(公告)号：US07540439B2

公开(公告)日：2009-06-02

申请号：US10524887

申请日：2003-08-01

申请人： Allin Sidney Pratt ,  Oliver Gutfleisch

发明人： Allin Sidney Pratt ,  Oliver Gutfleisch

IPC分类号： B02C25/00

CPC分类号： B22F1/0044 ,  B22F9/023 ,  B22F9/04 ,  B22F2009/041 ,  C01B3/0031 ,  C01B3/0078 ,  H01M4/383 ,  H01M8/065 ,  Y02E60/327

摘要： A process for the manufacture of a hydrogen storage material comprises comminuting a source of magnesium under a reducing atmosphere for a time sufficient to produce particles of a required particle size and crystallite size. At least one reducible PGM compound is introduced and substantially reduced during comminution such that it is distributed substantially at the surface of the particles.

摘要翻译： 用于制造储氢材料的方法包括在还原气氛下粉碎镁源，时间足以产生所需粒度和微晶尺寸的颗粒。 引入至少一种可还原PGM化合物并在粉碎过程中基本上还原，使得其基本上分布在颗粒的表面。

公开(公告)号：US20120040202A1

公开(公告)日：2012-02-16

申请号：US13139137

申请日：2009-12-10

申请人： Julia Lyubina ,  Mihaela Buschbeck ,  Oliver Gutfleisch

发明人： Julia Lyubina ,  Mihaela Buschbeck ,  Oliver Gutfleisch

IPC分类号： H01F1/01 ,  B05D1/02 ,  B05D1/18 ,  B05D3/00 ,  B32B15/04 ,  B32B15/01 ,  B32B15/02 ,  C25D3/56 ,  C25D3/12 ,  C25D3/26 ,  C25D3/04 ,  C25D3/38 ,  C25D3/22 ,  C25D3/46 ,  C25D3/50 ,  C25D3/48 ,  B05D5/00

CPC分类号： H01F1/015 ,  B32B15/013 ,  B32B15/015 ,  C22C38/005 ,  C22C38/02 ,  C22C38/10 ,  C23C18/32 ,  C25D3/562 ,  C25D7/001 ,  Y10T428/12063 ,  Y10T428/12181 ,  Y10T428/12438 ,  Y10T428/12465 ,  Y10T428/31678

摘要： The invention relates to the field of materials science and material physics and relates to a coated magnetic alloy material, which can be used, for example, as a magnetic cooling material for cooling purposes. The object of the present invention is to disclose a coated magnetic alloy material, which has improved mechanical and/or chemical properties. The object is attained with a magnetic alloy material with a NaZn13 type crystal structure and a composition according to the formula RaFe100-a-x-y-zTxMyLz and the surface of which is coated with a material composed of at least one element from the group Al, Si, C, Sn, Ti, V, Cd, Cr, Mn, W, Co, Ni, Cu, Zn, Pd, Ag, Pt, Au or combinations thereof The object is furthermore attained by a method in which the magnetic alloy material is coated by means of a method from the liquid phase.

摘要翻译： 本发明涉及材料科学和材料物理领域，涉及涂覆的磁性合金材料，其可以用作例如用于冷却目的的磁性冷却材料。 本发明的目的是公开一种具有改进的机械和/或化学性质的涂覆的磁性合金材料。 该目的是通过具有NaZn13型晶体结构的磁性合金材料和根据式RaFe100-axy-zTxMyLz的组合物来实现的，其表面涂覆有由Al，Si， C，Sn，Ti，V，Cd，Cr，Mn，W，Co，Ni，Cu，Zn，Pd，Ag，Pt，Au或其组合的目的还可以通过涂覆磁性合金材料的方法 通过液相的方法。

公开(公告)号：US20130248754A1

公开(公告)日：2013-09-26

申请号：US13824572

申请日：2011-05-13

申请人： Noritsugu Sakuma ,  Hidefumi Kishimoto ,  Akira Kato ,  Tetsuya Shoji ,  Dominique Givord ,  Nora Dempsey ,  Thomas George Woodcock ,  Oliver Gutfleisch ,  Gino Hrkac ,  Thomas Schrefl

发明人： Noritsugu Sakuma ,  Hidefumi Kishimoto ,  Akira Kato ,  Tetsuya Shoji ,  Dominique Givord ,  Nora Dempsey ,  Thomas George Woodcock ,  Oliver Gutfleisch ,  Gino Hrkac ,  Thomas Schrefl

IPC分类号： H01F41/00 ,  H01F1/01

CPC分类号： H01F41/00 ,  B22F2003/248 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/16 ,  C22C2202/02 ,  H01F1/01 ,  H01F1/0576 ,  H01F1/0577 ,  H01F10/126 ,  H01F41/005 ,  H01F41/0273 ,  H01F41/32 ,  B22F9/08 ,  B22F1/0055 ,  B22F3/10 ,  B22F3/24 ,  B22F1/0044 ,  B22F3/105

摘要： The method of the present invention produces a rare earth magnet, which is represented by a neodymium magnet (Nd2Fe14B) and neodymium magnet films with applications in micro-systems, by using a heat treatment method capable of enhancing the magnetic characteristics, particularly the magnetic coercive force. A method for producing a rare earth magnet, comprising: (a) quenching a molten metal having a rare earth magnet composition to form quenched flakes of nanocrystalline structure; sintering the quenched flakes; subjecting the sintered body obtained to an orientation treatment; and applying a heat treatment with pressurization at a temperature sufficiently high to enable diffusion or fluidization of a grain boundary phase and at the same time, low enough to prevent coarsening of the crystal grains. (b) thick films deposited on a substrate, applying an annealing to crystallize with pressurization at a temperature sufficiently high to enable diffusion or fluidization of a grain boundary phase and, at the same time, low enough to prevent coarsening of the crystal grains. Preferably, an element capable of lowering the temperature at which the grain boundary phase can be diffused or fluidized, is added to the rare earth magnet composition.

摘要翻译： 本发明的方法通过使用能够增强磁特性，特别是磁矫顽力的热处理方法来生产由钕磁体（Nd2Fe14B）和钕磁体薄膜表示的稀土磁体，其应用在微系统中 力。 一种稀土类磁体的制造方法，其特征在于，包括：（a）使具有稀土类磁铁组合物的熔融金属淬火，形成骤冷的纳米晶体结构的片状物; 烧结淬火片; 对获得的烧结体进行取向处理; 在足够高的温度下进行加压热处理，使晶界相扩散或流化，同时低至足以防止晶粒粗大化。 （b）沉积在基板上的厚膜，施加退火以在足够高的温度下加压结晶，以使晶界相扩散或流化，同时足够低以防止晶粒粗化。 优选地，能够将能够使晶界相扩散或流化的温度降低的元素添加到稀土类磁体组合物中。

公开(公告)号：US20140225696A1

公开(公告)日：2014-08-14

申请号：US14233847

申请日：2012-06-20

申请人： Konrad Güth ,  Oliver Gutfleisch

发明人： Konrad Güth ,  Oliver Gutfleisch

IPC分类号： H01F1/147 ,  H01F41/02

CPC分类号： H01F1/147 ,  H01F1/0553 ,  H01F1/0573 ,  H01F1/0579 ,  H01F41/0246

摘要： The invention relates to a method for producing a magnetic material, said magnetic material consisting of a starting material that comprises a rare earth metal (SE) and at least one transition metal. The rare earth metal content is 15 to 20 wt. %, and the method has the following steps:—hydrogenating the starting material,—disproportioning the starting material,—desorption, and—recombination. A soft magnetic material is added after the starting material is disproportioned.

摘要翻译： 本发明涉及一种用于制造磁性材料的方法，所述磁性材料由包括稀土金属（SE）和至少一种过渡金属的起始材料组成。 稀土金属含量为15〜20wt。 ％，并且该方法具有以下步骤： - 将原料氢化， - 对起始物质进行分解， - 解吸和重组。 在起始材料不成比例的情况下，添加软磁性材料。

公开(公告)号：US09520230B2

公开(公告)日：2016-12-13

申请号：US13824572

申请日：2011-05-13

申请人： Noritsugu Sakuma ,  Hidefumi Kishimoto ,  Akira Kato ,  Tetsuya Shoji ,  Dominique Givord ,  Nora Dempsey ,  Thomas George Woodcock ,  Oliver Gutfleisch ,  Gino Hrkac ,  Thomas Schrefl

发明人： Noritsugu Sakuma ,  Hidefumi Kishimoto ,  Akira Kato ,  Tetsuya Shoji ,  Dominique Givord ,  Nora Dempsey ,  Thomas George Woodcock ,  Oliver Gutfleisch ,  Gino Hrkac ,  Thomas Schrefl

IPC分类号： H01F41/00 ,  H01F41/02 ,  H01F41/32 ,  C22C38/00 ,  C22C38/06 ,  C22C38/16 ,  H01F1/01 ,  H01F1/057 ,  H01F10/12 ,  B22F3/24

CPC分类号： H01F41/00 ,  B22F2003/248 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/16 ,  C22C2202/02 ,  H01F1/01 ,  H01F1/0576 ,  H01F1/0577 ,  H01F10/126 ,  H01F41/005 ,  H01F41/0273 ,  H01F41/32 ,  B22F9/08 ,  B22F1/0055 ,  B22F3/10 ,  B22F3/24 ,  B22F1/0044 ,  B22F3/105

摘要： A rare earth magnet, which is represented by a neodymium magnet (Nd2Fe14B) and neodymium magnet films with applications in micro-systems. A method for producing a rare earth magnet, comprising: (a) quenching a molten metal having a rare earth magnet composition to form quenched flakes of nanocrystalline structure; sintering the quenched flakes; subjecting the sintered body obtained to an orientation treatment; and applying a heat treatment with pressurization at a temperature sufficiently high to enable diffusion or fluidization of a grain boundary phase and at the same time, low enough to prevent coarsening of the crystal grains, (b) thick films deposited on a substrate, applying an annealing to crystallize with pressurization at a temperature sufficiently high to enable diffusion or fluidization of a grain boundary phase and, at the same time, low enough to prevent coarsening of the crystal grains.

摘要翻译： 一种稀土磁体，由钕磁铁（Nd2Fe14B）和钕磁体薄膜组成，应用于微系统。 一种稀土类磁体的制造方法，其特征在于，包括：（a）使具有稀土类磁铁组合物的熔融金属淬火，形成骤冷的纳米晶体结构的片状物; 烧结淬火片; 对获得的烧结体进行取向处理; 并且在足够高的温度下进行加压热处理以使晶界相扩散或流化，同时低至足以防止晶粒粗大化，（b）沉积在基板上的厚膜， 在足够高的温度下通过加压结晶退火以使晶界相扩散或流化，同时足够低以防止晶粒粗化。

公开(公告)号：US20140346388A1

公开(公告)日：2014-11-27

申请号：US14233832

申请日：2012-06-20

申请人： Konrad Güth ,  Oliver Gutfleisch

发明人： Konrad Güth ,  Oliver Gutfleisch

IPC分类号： H01F1/01 ,  H01F41/00 ,  C01B35/04

CPC分类号： H01F1/01 ,  B22F9/023 ,  B22F2999/00 ,  C01B35/04 ,  C21D2201/03 ,  C22C33/0207 ,  C22C38/002 ,  C22C38/005 ,  C22C38/12 ,  C22C2202/02 ,  H01F1/0553 ,  H01F1/0573 ,  H01F1/0579 ,  H01F41/00 ,  B22F2202/05

摘要： The invention relates to a method for producing a magnetic material, said magnetic material consisting of a starting material that comprises a rare earth metal (SE) and at least one transition metal. The method has the following steps: —hydrogenating the starting material, —disproportioning the starting material, —desorption, and —recombination. A magnetic field is applied during at least one step such that a textured magnetic material is obtained and the formation of a texture is promoted in the magnetic material.

摘要翻译： 本发明涉及一种用于制造磁性材料的方法，所述磁性材料由包括稀土金属（SE）和至少一种过渡金属的起始材料组成。 该方法具有以下步骤：氢化起始材料， - 对原料进行分解， - 解吸和 - 组合。 在至少一个步骤期间施加磁场，使得获得纹理磁性材料并且在磁性材料中促进纹理的形成。

公开(公告)号：US20070295618A1

公开(公告)日：2007-12-27

申请号：US11578619

申请日：2005-04-14

申请人： David Boyd ,  Oliver Gutfleisch ,  Allin Pratt

发明人： David Boyd ,  Oliver Gutfleisch ,  Allin Pratt

IPC分类号： C22C23/00 ,  C01B3/00

CPC分类号： C01B3/0031 ,  B22F2009/041 ,  B22F2998/00 ,  C22C23/00 ,  Y02E60/327 ,  B22F9/04 ,  B22F9/082

摘要： A hydrogen storage composition comprises a particulate alloy comprising grains of magnesium, wherein the grain boundaries contain phases comprising nickel and at least one non-nickel transition metal, wherein the nickel is present at levels of ≦5 wt % based on the composition as a whole, and wherein the at least one non-nickel transition metal is present at levels of ≦0.5 wt % based on the composition as a whole.

摘要翻译： 储氢组合物包含包含镁颗粒的颗粒合金，其中晶界含有包含镍和至少一种非镍过渡金属的相，其中镍的含量基于组合物为<= 5重量％ 并且其中所述至少一种非镍过渡金属以基于组合物整体的<= 0.5wt％的含量存在。

公开(公告)号：US20060108457A1

公开(公告)日：2006-05-25

申请号：US10524887

申请日：2003-08-01

申请人： Allin Pratt ,  Oliver Gutfleisch

发明人： Allin Pratt ,  Oliver Gutfleisch

IPC分类号： B02C19/00

CPC分类号： B22F1/0044 ,  B22F9/023 ,  B22F9/04 ,  B22F2009/041 ,  C01B3/0031 ,  C01B3/0078 ,  H01M4/383 ,  H01M8/065 ,  Y02E60/327

摘要： A process for the manufacture of a hydrogen storage material comprises comminuting a source of magnesium under a reducing atmosphere for a time sufficient to produce particles of a required particle size and crystallite size. At least one reducible PGM compound is introduced and substantially reduced during comminution such that it is distributed substantially at the surface of the particles.

公开(公告)号：US06352597B1

公开(公告)日：2002-03-05

申请号：US09554841

申请日：2000-07-14

申请人： Oliver Gutfleisch ,  Michael Kubis ,  Axel Handstein ,  Bernhard Gebel ,  Karl-Hartmut Mueller ,  Ivor Harris ,  Ludwig Schultz

发明人： Oliver Gutfleisch ,  Michael Kubis ,  Axel Handstein ,  Bernhard Gebel ,  Karl-Hartmut Mueller ,  Ivor Harris ,  Ludwig Schultz

IPC分类号： H01F106

CPC分类号： H01F1/0553 ,  B22F9/023 ,  B22F9/04 ,  B22F2999/00 ,  B22F2201/013 ,  B22F1/0085

摘要： A method is disclosed enabling a technologically controllable and economical production of a hard-magnetic powder composed of a samarium-cobalt base alloy for highly coercive permanent magnets. The method is based on a HDDR treatment in which a starting powder is subjected to hydrogenation with disproportionation of the alloy in a first method step under hydrogen and, in a subsequent, second method step under vacuum conditions, a hydrogen desorption with recombination of the alloy. A starting powder containing samarium and cobalt is treated in the first method step either at a high temperature in the range of 500° C. to 900° C. and with a high hydrogen pressure of >0.5 MPa or by applying an intensive fine grinding at a low temperature in the range of 50° C. to 500° C. and with a hydrogen pressure of >0.15 MPa. By means of the method of the invention, magnetic alloy powders can be produced from samarium-cobalt base alloys; highly coercive permanent magnets can be produced from these magnetic alloy powders, particularly by hot compacting or plastic bonding.

摘要翻译： 公开了一种能够技术上可控和经济地生产由用于高矫顽永磁体的钐 - 钴基合金组成的硬磁粉末的方法。 该方法基于HDDR处理，其中起始粉末在第一方法步骤中在氢气下以合金的歧化进行氢化，并且在随后的第二方法步骤中，在真空条件下，通过合金的复合氢解吸 。 在第一方法步骤中，在500℃至900℃的高温和> 0.5MPa的高氢气压力下或通过在 在50℃至500℃的范围内的低温和> 0.15MPa的氢气压力。 通过本发明的方法，可以由钐钴基合金制备磁性合金粉末; 可以通过这些磁性合金粉末，特别是通过热压实或塑性粘合来制造高矫顽永久磁铁。