发明名称 |
PRODUCTION METHOD OF MAGNETIC POWDER, PRODUCTION METHOD OF DUST MAGNET MEMBER, AND DUST MAGNET MEMBER |
摘要 |
PROBLEM TO BE SOLVED: To provide a production method of magnetic powder for producing a rear earth magnet excellent in magnetic characteristics easily.SOLUTION: A production method of magnetic powder 1, 100 includes a nitriding step for producing powder of rear earth-iron-nitrogen-based alloy, having a nanocomposite organization where an α-Fe phase 12 is dispersed into a main phase containing a rear earth-iron-nitrogen-based compound, by nitriding the powder of rear earth-iron-nitrogen-based alloy containing a rear-earth element and Fe at a temperature of nitriding temperature or more, while applying a magnetic field to an atmosphere containing nitrogen.SELECTED DRAWING: Figure 1 |
申请公布号 |
JP2016100519(A) |
申请公布日期 |
2016.05.30 |
申请号 |
JP20140237909 |
申请日期 |
2014.11.25 |
申请人 |
SUMITOMO ELECTRIC IND LTD;TOHOKU UNIV |
发明人 |
NAGASAWA MOTOKI;MAEDA TORU;TAKAHASHI KEN;OGAWA TOMOYUKI |
分类号 |
H01F1/06;B22F1/00;B22F3/00;C22C38/00;H01F1/055;H01F1/08;H01F41/02 |
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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