HEAT CARRIER MEDIUM FOR MAGNETOCALORIC MATERIALS
    87.
    发明申请
    HEAT CARRIER MEDIUM FOR MAGNETOCALORIC MATERIALS 有权
    热载体介质用于磁铁材料

    公开(公告)号:US20150123025A1

    公开(公告)日:2015-05-07

    申请号:US14574633

    申请日:2014-12-18

    申请人: BASF SE

    IPC分类号: H01F1/01

    CPC分类号: H01F1/015 C09K5/10 H01F1/017

    摘要: What is described is the use of alcohols, alcoholamines, diols, polyols or mixtures thereof in heat carrier media or as heat carrier media which are in contact with magnetocaloric materials.

    摘要翻译: 所描述的是在热载体介质中或作为与磁热材料接触的热载体介质中使用醇,醇胺,二醇,多元醇或其混合物。

    BONDED La(Fe,Si)13-BASED MAGNETOCALORIC MATERIAL AND PREPARATION AND USE THEREOF
    88.
    发明申请
    BONDED La(Fe,Si)13-BASED MAGNETOCALORIC MATERIAL AND PREPARATION AND USE THEREOF 审中-公开
    粘结La(Fe,Si)13基磁性材料及其制备及其应用

    公开(公告)号:US20150047371A1

    公开(公告)日:2015-02-19

    申请号:US14359685

    申请日:2012-05-17

    IPC分类号: H01F1/01 F25B21/00

    摘要: Provided is a high-strength, bonded La(Fe, Si)13-based magnetocaloric material, as well as a preparation method and use thereof. The magnetocaloric material comprises magnetocaloric alloy particles and an adhesive agent, wherein the particle size of the magnetocaloric alloy particles is less than or equal to 800 μm and are bonded into a massive material by the adhesive agent; the magnetocaloric alloy particle has a NaZn13-type structure and is represented by a chemical formula of La1-xRx(Fe1-p-qCopMnq)13-ySiyAα, wherein R is one or more selected from elements cerium (Ce), praseodymium (Pr) and neodymium (Nd), A is one or more selected from elements C, H and B, x is in the range of 0≦x≦0.5, y is in the range of 0.8≦y≦2, p is in the range of 0≦p≦0.2, q is in the range of 0≦q≦0.2, α is in the range of 0≦α≦3.0. Using a bonding and thermosetting method, and by means of adjusting the forming pressure, thermosetting temperature, and thermosetting atmosphere, etc., a high-strength, bonded La(Fe, Si)13-based magnetocaloric material can be obtained, which overcomes the frangibility, the intrinsic property, of the magnetocaloric material. At the same time, the magnetic entropy change remains substantially the same, as compared with that before the bonding. The magnetic hysteresis loss declines as the forming pressure increases. And the effective refrigerating capacity, after the maximum loss being deducted, remains unchanged or increases.

    摘要翻译: 提供高强度的La(Fe,Si)13基磁热材料及其制备方法和用途。 磁热材料包括磁热合金颗粒和粘合剂,其中磁热合金颗粒的颗粒尺寸小于或等于800μm,并通过粘合剂粘合成块状材料; 磁热合金颗粒具有NaZn13型结构,并且由La1-xRx(Fe1-p-qCopMnq)13-ySiyAα的化学式表示,其中R是选自元素铈(Ce),镨(Pr) 和钕(Nd),A是选自元素C,H和B中的一种或多种,​​x在0和nlE的范围内; x和nlE; 0.5,y在0.8和nlE的范围内; y和nlE; 2,p在 0≦̸ p≦̸ 0.2,q在0和nlE的范围内; q≦̸ 0.2,α在0< nEE;α≦̸ 3.0的范围内。 使用粘结和热固化方法,通过调整成型压力,热固化温度和热固性气氛等,可以获得高强度的La(Fe,Si)13基磁热材料,克服了 易磁性,内在性质,磁热材料。 同时,与接合前相比,磁熵变保持基本相同。 随着成形压力的增加,磁滞损耗下降。 扣除最大损失后的有效制冷量保持不变或增加。