MAGNETOCALORIC CASCADE AND METHOD FOR FABRICATING A MAGNETOCALORIC CASCADE
    1.
    发明公开
    MAGNETOCALORIC CASCADE AND METHOD FOR FABRICATING A MAGNETOCALORIC CASCADE 审中-公开
    磁电级联和制造磁电级联的方法

    公开(公告)号:EP3234959A1

    公开(公告)日:2017-10-25

    申请号:EP15807644.8

    申请日:2015-12-07

    Applicant: BASF SE

    Abstract: A polymeric material having a negative photoelastic constant. The polymeric material comprises: (a) a polymer comprising polymerized units of 2-vinylpyridine, 4-vinylpyridine, methyl methacrylate or a combination thereof; (b) a C9-C25 aliphatic polycyclic compound; and (c) an organic compound having a boiling point of at least 200° C.

    Abstract translation: 本发明涉及包含具有不同居里温度T c的一系列磁热材料层的磁热级联,其中 - 所述磁热材料层包括冷侧外层,热侧外层和至少三个位于冷 - 对于磁热级联的每对下一相邻磁热材料层,存在相应的交叉温度,在所述交叉温度处,各个相邻磁热材料层的熵参数mΔS呈现相同的交叉 熵值,其中熵参数mΔS被定义为相应磁热材料层的质量m和相应磁热材料层的磁相变中其等温磁熵变的量ΔS的乘积, - 至少两个 内层的质量m彼此不同,并且 - entro的所有交叉点值 所有下一相邻内层对的py参数mΔS精确地或在±15%的范围内等于磁热级联的所有下一相邻内层的所有交叉点值的平均值。

    MAGNETOCALORIC CASCADE AND METHOD FOR FABRICATING A MAGNETOCALORIC CASCADE
    2.
    发明公开
    MAGNETOCALORIC CASCADE AND METHOD FOR FABRICATING A MAGNETOCALORIC CASCADE 审中-公开
    磁电级联和制造磁电级联的方法

    公开(公告)号:EP3234958A1

    公开(公告)日:2017-10-25

    申请号:EP15807641.4

    申请日:2015-12-07

    Applicant: BASF SE

    CPC classification number: H01F1/012 F25B21/00

    Abstract: A magnetocaloric cascade contains a sequence of magnetocaloric material layers having different Curie temperatures TC, wherein the magnetocaloric material layers include a cold-side outer layer, a hot-side outer layer and at least three inner layers between the cold-side outer layer and the hot-side outer layer, and each pair of next neighboring magnetocaloric layers of the magnetocaloric cascade has a respective Curie-temperature difference amount ΔTC between their respective Curie temperatures, wherein the hot-side outer layer or the cold-side outer layer or both the hot-side and cold-side outer layer exhibits a larger ratio mΔSmax/ΔTC in comparison with any of the inner layers, m denoting the mass of the respective magnetocaloric material layer and ΔSmax denoting a maximum amount of isothermal magnetic entropy change achievable in a magnetic phase transition of the respective magnetocaloric material layer.

    Abstract translation: 本发明涉及包含具有不同居里温度T c的一系列磁热材料层的磁热级联,其中 - 所述磁热材料层包括冷侧外层,热侧外层和至少三个位于冷 - 所述磁热级联的每对下一个相邻磁热层在它们各自的居里温度之间具有各自的居里温差量ΔTc,其中 - 所述热侧外层或所述热侧外层 与任何内层相比,冷侧外层或热侧和冷侧外层两者表现出更大的比率mΔSmax /ΔTc,m表示相应磁热材料层的质量,ΔSmax表示 在相应的磁热材料层的磁相变中可实现的最大量的等温磁熵变。

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