Magnetic material for magnetic refrigeration and method for producing thereof
    1.
    发明授权
    Magnetic material for magnetic refrigeration and method for producing thereof 有权
    磁性制冷用磁性材料及其制造方法

    公开(公告)号:US07063754B2

    公开(公告)日:2006-06-20

    申请号:US10403119

    申请日:2003-04-01

    IPC分类号: H01F1/053 H01F1/047

    CPC分类号: H01F1/017 Y10S62/914

    摘要: The magnetic material for magnetic refrigeration according to the present invention has an NaZn13-type crystalline structure and comprises iron (Fe) as a principal element (more specifically, Fe is substituted for the position of “Zn”) and hydrogen (H) in an amount of 2 to 18 atomic % based on all constitutional elements. Preferably, the magnetic material for magnetic refrigeration preferably contains 61 to 87 atomic % of Fe, 4 to 18 atomic % of a total amount of Si and Al, 5 to 7 atomic % of La. The magnetic material for magnetic refrigeration exhibits a large entropy change in a room temperature region and no thermal hysteresis in a magnetic phase transition. Therefore, when a magnetic refrigeration cycle is configured using the magnetic material for magnetic refrigeration, a stable operation can be performed.

    摘要翻译: 根据本发明的磁性制冷用磁性材料具有NaZn 13 N型晶体结构,并且以铁(Fe)为主要元素(更具体地,Fe代替“Zn”的位置) )和基于所有构成元素的2至18原子%的量的氢(H)。 优选磁性制冷用磁性材料优选含有61〜87原子%的Fe,Si和Al的总量为4〜18原子%,La为5〜7原子%。磁性制冷用磁性体的熵大 在室温区域内发生变化,在磁相转变中没有热滞后。 因此,当使用磁性制冷用磁性材料构成磁性制冷循环时,可以进行稳定的动作。