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The magnetic refrigerating material, a magnetic refrigeration device and a magnetic refrigeration s 发明授权

2023-02-02 3200 118K 0

专利信息

申请日期 2025-07-09 申请号 JP2011267328
公开(公告)号 JP5850318B2 公开(公告)日 2016-02-03
公开国别 JP 申请人省市代码 全国
申请人 Santoku Corporation176660
简介 PROBLEM TO BE SOLVED : To provide a magnetic refrigeration material having refrigeration performance significantly higher than that in the prior art, in a range up to around 2 tesla where change in a magnetic field by a permanent magnet is considered possible.SOLUTION : The magnetic refrigeration material includes a first phase having composition represented by formula LaRE(FeSiCoXMZ)and a second phase containing at least one element selected from Fe, B, and Z, and having the total content of La and RE of 1 atom% or less, wherein the average crystal grain size of the first phase and the second phase is in the range of 0.01-1 μm. In the formula, RE represents an element other than La including at least one selected from rare-earth elements including Sc and Y; X represents an element including at least one of Ga and Al; M represents an element including at least one of Ge, Sn, B, and C; Z represents an element including at least one of Ti, V, Cr, Mn, Ni, Cu, Zn, and Zr; a is 0.03≤a≤0.17; b is 0.003≤b≤0.06; c is 0.02≤c≤0.10; d is 0≤d≤0.04; e is 0≤e≤0.04; and f is 0≤f≤0.50.


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