发明授权
- 专利标题： Magnetic refrigerating material and magnetic refrigerating device
- 专利标题（中）： 磁性制冷材料及磁性制冷装置
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申请号： US12015812申请日： 2008-01-17
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公开(公告)号： US08769965B2公开(公告)日： 2014-07-08
- 发明人: Hideyuki Tsuji , Akiko Saito , Tadahiko Kobayashi
- 申请人： Hideyuki Tsuji , Akiko Saito , Tadahiko Kobayashi
- 申请人地址： JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2007-057964 20070308
- 主分类号： F25B21/00
- IPC分类号： F25B21/00 ; C01F17/00 ; C04B35/40 ; C04B35/64 ; H01F1/00
摘要：
A magnetic refrigeration material includes: at least one selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and Tb by a range of 4 to 15 atomic percentages; at least one selected from the group consisting of Fe, Co, Ni, Mn and Cr by a range of 60 to 93 atomic percentages; at least one selected from the group consisting of Si, C, Ge, Al, Ga and In by a range of 2.9 to 23.5 atomic percentages; and at least one selected from the group consisting of Ta, Nb and W by a range of 1.5 atomic percentages or less, wherein the magnetic refrigeration material includes a NaZn13 type crystal structure as a main phase.
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