公开(公告)号：US09633769B2

公开(公告)日：2017-04-25

申请号：US14005081

申请日：2012-03-14

申请人： Hiroaki Takata ,  Toshio Irie

发明人： Hiroaki Takata ,  Toshio Irie

IPC分类号： F25B21/00 ,  H01F1/01 ,  C22C38/00 ,  C22C38/02 ,  C22C38/10 ,  C22C38/06 ,  C22C38/14 ,  C22C38/18 ,  C21D1/74 ,  C22C1/02 ,  C22C33/02

CPC分类号： H01F1/015 ,  C21D1/74 ,  C22C1/02 ,  C22C33/0278 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/18 ,  C22C2202/02 ,  F25B21/00 ,  F25B2321/002

摘要： Provided is a magnetic refrigeration material which has a Curie temperature near room temperature or higher, and provides refrigeration performance well over that of conventional materials when subjected to a field change up to 2 Tesla, which is assumed to be achievable with a permanent magnet. The magnetic refrigeration material is of a composition represented by the formula La1-fREf(Fe1-a-b-c-d-eSiaCObXcYdZe)13 (RE: at least one of rare earth elements including Sc and Y and excluding La; X: Ga and/or Al; Y: at least one of Ge, Sn, B, and C; Z: at least one of Ti, V, Cr, Mn, Ni, Cu, Zn, and Zr; 0.03≦a≦0.17, 0.003≦b≦0.06, 0.02≦c≦0.10, 0≦d≦0.04, 0≦e≦0.04, 0≦f≦0.50), and has Tc of not lower than 220 K and not higher than 276 K, and the maximum (−ΔSmax) of magnetic entropy change (−ΔSM) of the material when subjected to a field change up to 2 Tesla is not less than 5 J/kgK.

公开(公告)号：US09343209B2

公开(公告)日：2016-05-17

申请号：US12990107

申请日：2009-04-27

申请人： Bernard Hendrik Reesink

发明人： Bernard Hendrik Reesink

IPC分类号： C09K5/00 ,  H01F1/00 ,  H01F1/01 ,  H01F1/053 ,  H01F1/058 ,  B22F3/10 ,  B22F3/11 ,  C22C1/04 ,  C22C1/08 ,  F25B21/00

CPC分类号： H01F1/015 ,  B22F3/1028 ,  B22F3/1125 ,  C22C1/0491 ,  C22C1/08 ,  C22C2202/02 ,  F25B21/00 ,  H01F1/053 ,  H01F1/058 ,  Y02B30/66

摘要： An open-cell porous shaped body for heat exchangers, and process for making same, comprising a thermomagnetic material selected from, for example, a compound of the general formula (I): (AyB1−y)2+δCwDxEz  (I) where A is Mn or Co; B is Fe, Cr or Ni; at least two of C, D and E are different, have a non-vanishing concentration and are selected from P, B, Se, Ge, Ga, Si, Sn, N, As and Sb, where at least one of C, D and E is Ge or Si; δ is a number from −0.1 to 0.1; and w, x, y, z are each a number from 0 to 1, where w+x+z=1.

摘要翻译： 一种用于热交换器的开孔多孔成形体及其制造方法，其包含选自例如通式（I）的化合物：（AyB1-y）2 +δCwDxEz（I）的热磁性材料，其中A 是Mn或Co; B是Fe，Cr或Ni; C，D和E中的至少两个是不同的，具有非消失浓度并且选自P，B，Se，Ge，Ga，Si，Sn，N，As和Sb，其中C，D中的至少一个 E为Ge或Si; δ是从-0.1到0.1的数字; 并且w，x，y，z各自为0至1的数，其中w + x + z = 1。

公开(公告)号：US20150263515A1

公开(公告)日：2015-09-17

申请号：US14438043

申请日：2013-11-25

申请人： SCHNEIDER ELECTRIC INDUSTRIES SAS

发明人： Philippe Schuster ,  Nathalie Caillault

IPC分类号： H02H9/02 ,  H02H7/22 ,  H01F1/01 ,  H01F29/00

CPC分类号： H02H9/02 ,  H01F1/015 ,  H01F29/00 ,  H01F38/023 ,  H02H7/226

摘要： A current limiting device including a transformer including an element made from a magnetothermal material, a primary conductor, and a secondary winding. Heat is generated by the current flowing through the primary conductor and when the current exceeds a certain threshold it modifies the coupling coefficient of the transformer, which makes it possible to limit the current in the primary conductor.

摘要翻译： 一种限流装置，包括包括由热电材料，初级导体和次级绕组制成的元件的变压器。 通过流过主导体的电流产生热量，并且当电流超过一定阈值时，其改变变压器的耦合系数，这使得可以限制初级导体中的电流。

公开(公告)号：US20150246360A9

公开(公告)日：2015-09-03

申请号：US13798795

申请日：2013-03-13

申请人： VACCUMSCHMELZE GMBH & CO. KG

发明人： Matthias KATTER

IPC分类号： B03C1/005 ,  H01F1/01 ,  B03C1/02

CPC分类号： B03C1/005 ,  B03C1/02 ,  B03C1/30 ,  B03C1/32 ,  H01F1/015

摘要： A method for classifying articles comprising magnetocalorically active material according to magnetic transition temperature comprises providing a source of articles to be classified, the source comprising articles comprising magnetocalorically active materials having differing magnetic transition temperatures, sequentially applying a magnetic field at differing temperatures to the source, the magnetic field being sufficient to exert a magnetic force on the source that is greater than the inertia of a fraction of the articles causing the fraction of the articles to move and produce an article fraction, and collecting the article fraction at each temperature to provide a plurality of separate article fractions of differing magnetic transition temperature, thus classifying the articles comprising magnetocalorically active material according to magnetic transition temperature.

摘要翻译： 根据磁转变温度对包含磁热活性材料的制品进行分类的方法包括提供待分类的制品源，所述源包括具有不同磁转变温度的磁热活性材料的物品，顺序地将不同温度的磁场施加到所述源， 所述磁场足以在所述源上施加磁力，所述磁力大于所述制品的一部分的惯性，导致所述制品的所述部分移动并产生制品部分，并在每个温度下收集所述制品部分以提供 多个具有不同磁转变温度的单独制品级分，从而根据磁转变温度对包含磁热活性材料的制品进行分类。

公开(公告)号：US20140251506A1

公开(公告)日：2014-09-11

申请号：US13790560

申请日：2013-03-08

申请人： UT-Battelle, LLC

发明人： Boyd Mccutchen Evans, III ,  Roger A. Kisner ,  Gail Mackiewicz Ludtka ,  Gerard Michael Ludtka ,  Alexander M. Melin ,  Donald M. Nicholson ,  Chad M. Parish ,  Orlando Rios ,  Athena S. Sefat ,  David L. West ,  John B. Wilgen

IPC分类号： C30B11/00 ,  H01F1/01 ,  C30B11/02

CPC分类号： C30B11/003 ,  C30B11/02 ,  C30B29/52 ,  C30B30/04 ,  H01F1/015

摘要： A method of making a single crystal comprises heating a material comprising magnetic anisotropy to a temperature T sufficient to form a melt of the material. A magnetic field of at least about 1 Tesla is applied to the melt at the temperature T, where a magnetic free energy difference ΔGm between different crystallographic axes is greater than a thermal energy kT. While applying the magnetic field, the melt is cooled at a rate of about 30° C./min or higher, and the melt solidifies to form a single crystal of the material.

摘要翻译： 制造单晶的方法包括将包含磁各向异性的材料加热到足以形成材料熔体的温度T。 在温度T下将至少约1特斯拉的磁场施加到熔体，其中不同结晶轴之间的自由能差Dgr; Gm大于热能kT。 在施加磁场的同时，将熔体以约30℃/分钟或更高的速率冷却，熔体固化形成材料的单晶。

公开(公告)号：US20140116067A1

公开(公告)日：2014-05-01

申请号：US14147693

申请日：2014-01-06

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Shinya SAKURADA ,  Akiko SAITO ,  Tadahiko KOBAYASHI ,  Hideyuki TSUJI

IPC分类号： F25B21/00

CPC分类号： F25B21/00 ,  C22C38/005 ,  C22C45/02 ,  H01F1/015

摘要： Magnetic materials, having: a composition represented by a general formula: (R1-yXy)x(Fe1-aMa)100-x where, R is at least one of element selected from the group consisting of La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb and Y, X is at least one of element selected from the group consisting of Ti, Zr and Hf, M is at least one of element selected from the group consisting of V, Cr, Mn, Ni, Cu, Zn, Nb, Mo, Ta, W, Al, Si, Ga and Ge, x is a value satisfying 4≦x≦20 atomic %, y is a value satisfying 0.01≦y≦0.9, and a is a value satisfying 0≦a≦0.2, wherein the magnetic material includes a Th2Ni17 crystal phase or a TbCu7 crystal phase as a main phase, that are useful for magnetic refrigeration.

摘要翻译： 磁性材料，具有以下通式表示的组成：（R1-yXy）x（Fe1-aMa）100-x其中，R是选自La，Ce，Pr，Nd中的至少一种元素， Sm，Gd，Tb，Dy，Ho，Er，Tm，Yb和Y中的至少一种，X是选自Ti，Zr和Hf中的至少一种元素，M是选自以下的元素中的至少一种： V，Cr，Mn，Ni，Cu，Zn，Nb，Mo，Ta，W，Al，Si，Ga和Ge，x是满足4＆nlE; x＆nlE; 20原子％的值，y是满足0.01＆nlE; y＆ ; 0.9，a是满足0＆lt; nlE; a＆nlE; 0.2的值，其中所述磁性材料包括可用于磁性制冷的Th2Ni17晶相或TbCu7晶相作为主相。

公开(公告)号：US20140093934A1

公开(公告)日：2014-04-03

申请号：US14099176

申请日：2013-12-06

申请人： BASF SE

发明人： Ekkehard BRUECK

IPC分类号： C07K16/00 ,  C12N11/14 ,  C07H23/00 ,  C07K14/00 ,  C07K14/825

CPC分类号： C07K16/00 ,  A61K41/0052 ,  B22F1/0018 ,  B22F1/0085 ,  B22F3/1039 ,  B22F2998/00 ,  B82Y30/00 ,  C07H23/00 ,  C07K14/00 ,  C07K14/825 ,  C12N11/14 ,  C22C33/0207 ,  H01F1/015 ,  B22F9/04 ,  B22F9/06 ,  B22F9/026

摘要： In a process for producing organic substrate particles bonded to switchable ferromagnetic nanoparticles with a mean particle diameter in the range from 10 to 1000 nm, the ferromagnetic nanoparticles used are those nanoparticles which are nonferromagnetic at first, but become ferromagnetic when the temperature is lowered, these at first nonferromagnetic nanoparticles in dispersed form are bonded to the organic substance particles, and then the nanoparticles bonded to the substrate particles are made ferromagnetic as a result of the temperature being lowered.

摘要翻译： 在制造平均粒径为10〜1000nm的可切换铁磁性纳米粒子的有机基体粒子的制造方法中，使用的铁磁性纳米粒子首先是非铁磁性的，当温度降低时变成铁磁性， 首先将分散形式的非磁性纳米粒子结合到有机物质颗粒上，然后结合到基底颗粒的纳米颗粒由于温度降低而变成铁磁性的。

公开(公告)号：US20130241682A1

公开(公告)日：2013-09-19

申请号：US13747942

申请日：2013-01-23

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Yosuke Horiuchi ,  Shinya Sakurada ,  Tsuyoshi Kobayashi ,  Keiko Okamoto ,  Masaya Hagiwara

IPC分类号： H01F1/01

CPC分类号： H01F1/015 ,  C22C1/02 ,  H01F1/0557

摘要： In one embodiment, a permanent magnet includes: a composition expressed by RpFeqMrCusCo100-p-q-r-s (R is a rare-earth element, M is at least one element selected from Zr, Ti, and Hf, 10.8≦p≦13.5 at %, 28≦q≦40 at %, 0.88≦r≦7.2 at %, and 3.5≦s≦13.5 at %); and a metallic structure including a cell phase having a Th2Zn17 crystal phase, and a cell wall phase. A Cu concentration in the cell wall phase is in a range from 30 at % to 70 at %.

摘要翻译： 在一个实施例中，永磁体包括：由RpFeqMrCusCo100-pqrs表示的组成（R是稀土元素，M是选自Zr，Ti和Hf中的至少一种元素，10.8％ q @ 40 at％，0.88 @ r @ 7.2 at％，3.5 @ s @ 13.5 at％）; 以及包括具有Th2Zn17结晶相的电池相和细胞壁相的金属结构。 细胞壁相中的Cu浓度在30at％至70at％的范围内。

公开(公告)号：US20130134348A1

公开(公告)日：2013-05-30

申请号：US13680359

申请日：2012-11-19

申请人： General Electric Company

发明人： Shyamala Halady Subraya BHAT ,  Francis JOHNSON ,  Sudhakar Eddula REDDY ,  Jayeshkumar Jayanarayan BARVE

IPC分类号： H01F1/01

CPC分类号： H01F1/015

摘要： A material is disclosed. The material includes a magnetic material. The magnetic material exhibits a metamagnetic transition to a magnetic saturation at an applied magnetic field of strength less than or equal to 1 T, in which a transition temperature of the magnetic material is within a temperature region from about 160 K to about 350K.

摘要翻译： 公开了一种材料。 该材料包括磁性材料。 磁性材料在施加的强度小于或等于1T的磁场下表现出磁饱和，其中磁性材料的转变温度在约160K至约350K的温度范围内。

公开(公告)号：US08211326B2

公开(公告)日：2012-07-03

申请号：US10543673

申请日：2003-01-29

申请人： Ekkehard Hubertus Brück ,  Ojiyed Tegusi ,  Frank Roelof De Boer

发明人： Ekkehard Hubertus Brück ,  Ojiyed Tegusi ,  Frank Roelof De Boer

IPC分类号： C04B35/00 ,  C09D5/23 ,  H01F1/00 ,  C09K5/00 ,  C09K5/04 ,  F25B21/00

CPC分类号： H01F1/015 ,  B22F2003/248 ,  B22F2009/041 ,  B22F2998/10 ,  C04B35/5154 ,  C04B2235/40 ,  C04B2235/405 ,  C04B2235/428 ,  C22C1/0491 ,  F25B21/00 ,  Y02B30/66 ,  B22F1/0003 ,  B22F9/04 ,  B22F3/02 ,  B22F3/10 ,  B22F3/24

摘要： The invention relates to a material that can be used for magnetic refrigeration, wherein the material substantially has the general formula (AYB1-Y)2+δCWDXEZ Wherein: A is selected from Mn and Co; B is selected from Fe and Cr; of C, D and E at least two are different, have a non-vanishing concentration and are selected from P, B, Se, Ge, Ga, Si, Sn and Sb; wherein at least one of C, D and E is Ge or Si; W, X, Y and Zeach is a number in the range 0-1, and W+X+Z=1; andδis a number from (−0.1)-(+0.1).

摘要翻译： 本发明涉及一种可用于磁性制冷的材料，其中该材料基本上具有通式（AYB1-Y）2 +δCWDXEZ其中：A选自Mn和Co; B选自Fe和Cr; C，D和E中至少有两个不同，具有非消失浓度，选自P，B，Se，Ge，Ga，Si，Sn和Sb; 其中C，D和E中的至少一个是Ge或Si; W，X，Y和Zeach是范围为0-1，W + X + Z = 1的数字; δ为（-0.1） - （+ 0.1）。