发明名称 |
Iron powder coated with Mg-containing oxide film |
摘要 |
Oxide-coated Fe powder for producing various electromagnetic circuit components requiring high resistivity is provided. The oxide-coated Fe powder is a Mg-containing oxide film-coated iron powder coated with an Mg-Fe-O ternary-based deposition film at least containing (Mg, Fe)O. The (Mg,Fe)O is a crystalline MgO-dissolving wustite. The Mg-Fe-O ternary-based oxide deposition film has a sulfur-enriched layer containing a higher concentration of sulfur than that of central portion of the iron powder, fine crystalline texture having a grain size of 200 nm or less, and the outermost surface is substantially composed of MgO. A composite soft magnetic material using the Mg-containing oxide film-coated iron powder is also provided. |
申请公布号 |
EP2248617(A3) |
申请公布日期 |
2013.05.01 |
申请号 |
EP20100172637 |
申请日期 |
2005.11.02 |
申请人 |
DIAMET CORPORATION |
发明人 |
WATANABE, MUNEAKI;NAKAYAMA, RYOJI;UOZUMI, GAKUJI |
分类号 |
B22F1/02;C22C33/02;C22C38/00;H01F1/20;H01F1/33;H01F41/02 |
主分类号 |
B22F1/02 |
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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