发明名称 |
Permanent magnet including multiple ferromagnetic phases and method of producing the magnet |
摘要 |
An iron-based rare earth alloy magnet has a composition represented by the general formula: (Fe1-mTm)100-x-y-zQxRyMz, where T is at least one element selected from the group consisting of Co and Ni; Q is at least one element selected from the group consisting of B and C; R is at least one rare earth element substantially excluding La and Ce; and M is at least one metal element selected from the group consisting of Ti, Zr and Hf and always includes Ti. In this formula, the mole fractions x, y, z and m meet the inequalities of: 10 at %<x<=20 at %; 6 at %<=y<10 at %; 0.1 at %<=z<=12 at %; and 0<=m<=0.5, respectively. |
申请公布号 |
US6706124(B2) |
申请公布日期 |
2004.03.16 |
申请号 |
US20010863902 |
申请日期 |
2001.05.24 |
申请人 |
SUMITOMO SPECIAL METALS CO., LTD. |
发明人 |
KANEKIYO HIROKAZU;MIYOSHI TOSHIO;HIROSAWA SATOSHI;SHIGEMOTO YASUTAKA;SHIOYA YUSUKE |
分类号 |
H01F1/057;H01F1/058;(IPC1-7):H01F1/057;C04B35/04 |
主分类号 |
H01F1/057 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|