发明名称 |
METHOD FOR MANUFACTURING FERROMAGNETIC IRON NITRIDE GRAIN POWDER, ANISOTROPIC MAGNET, BOND MAGNET AND POWDER-COMPACT MAGNET |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing ferromagnetic iron nitride grain powder particularly of fine grains. <P>SOLUTION: The method for manufacturing ferromagnetic iron nitride grain powder comprises the steps of: mixing at least one kind of compound selected from metal hydride, metal halide and metal borohydride, and an iron compound and then performing a heat treatment on the mixture to obtain metallic iron; and mixing the resultant metal iron and a nitrogen-containing compound, and then performing a heat treatment on the mixture. The anisotropic magnet, the bond magnet and the powder-compact magnet are produced by using ferromagnetic iron nitride grain powder manufactured according to the method. <P>COPYRIGHT: (C)2013,JPO&INPIT |
申请公布号 |
JP2013069926(A) |
申请公布日期 |
2013.04.18 |
申请号 |
JP20110208189 |
申请日期 |
2011.09.22 |
申请人 |
TODA KOGYO CORP;TOHOKU UNIV |
发明人 |
YAMAMOTO SHINPEI;TAKANO MIKIO;TAKAHASHI KEN;OGAWA TOMOYUKI;KOBAYASHI NARIYA |
分类号 |
H01F1/06;B22F1/00;H01F7/02 |
主分类号 |
H01F1/06 |
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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