发明名称 |
MAGNETIC MATERIAL, MAGNET AND METHOD OF PRODUCING MAGNETIC MATERIAL |
摘要 |
<p>A magnetic particle (10) has a core portion (11) with a hard magnetic phase comprising e-Fe2O3, and a shell portion (12) with a soft magnetic phase comprising Fe and covering at least part of the core portion (11). The magnetic particle (10) is prepared by reducing an upper surface of e-Fe2O3 powder. In this manner, the magnetic particle (10) can be prepared by reducing a Fe oxide without using a rare earth element. Preparing a sintered magnet or a bond magnet using this magnetic particle (10) enables a nanocomposite magnet to be prepared that does not use rare earth elements.</p> |
申请公布号 |
WO2012101752(A1) |
申请公布日期 |
2012.08.02 |
申请号 |
WO2011JP51262 |
申请日期 |
2011.01.25 |
申请人 |
TDK CORPORATION;HOZUMI, TOSHIYA;IRIE, SHUICHIRO;CHIBA, TETSUYA |
发明人 |
HOZUMI, TOSHIYA;IRIE, SHUICHIRO;CHIBA, TETSUYA |
分类号 |
H01F1/11;C01G49/06;H01F41/02 |
主分类号 |
H01F1/11 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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