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PERMANENT MAGNET, PERMANENT MAGNET MOTOR WITH THE USE OF THE SAME, AND GENERATOR 发明申请

2023-09-19 4800 54K 0

专利信息

申请日期 2025-07-12 申请号 JP2008295432
公开(公告)号 JP2010121167A 公开(公告)日 2010-06-03
公开国别 JP 申请人省市代码 全国
申请人 TOSHIBA CORP
简介 PROBLEM TO BE SOLVED : To enhance the magnetization and reduce the cost of an Sm-Co-based magnet superior in heat resistance by enhancing the Fe concentration in the magnet while keeping a crystal structure and the like which yield magnet characteristics. SOLUTION : The permanent magnet has a composition expressed by R(Fep(TisM1-s)qCurCo1-p-q-r)z (wherein R represents at least one element selected from rare earth elements including Y; M represents at least one element selected from Zr and Hf; and p, q, r, s and z are numerals which respectively satisfy 0.3≤p≤0.6, 0.01≤q≤0.1, 0.01≤r≤0.15, 0.2≤s≤0.8 and 6≤z≤9 by an atom ratio); and has a structure mainly formed of a Th2Zn17 type crystal phase and a CaCu5 type crystal phase. COPYRIGHT : (C)2010, JPO&INPIT


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