发明授权
- 专利标题： Rare earth magnet alloy, manufacturing method thereof and product applied with rare earth magnet alloy
- 专利标题（中）： 稀土磁体合金，其制造方法和应用稀土磁体合金的产品
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申请号： US10146900申请日： 2002-05-17
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公开(公告)号： US06800145B2公开(公告)日： 2004-10-05
- 发明人: Munekatsu Shimada , Hideaki Ono
- 申请人： Munekatsu Shimada , Hideaki Ono
- 优先权： JPP2001-147831 20010517
- 主分类号： H01F1057
- IPC分类号： H01F1057
摘要：
A Nd—Fe—B type rare earth magnet alloy is provided with hard magnetic phases each of which has a size equal to or less than 80 nm, soft magnetic phases each of which has a size equal to or less than 80 nm, with the hard and soft magnetic phases being present in a mixed structure, and partly anisotropic regions wherein axes of easy magnetization of the hard magnetic phases are aligned in one direction and each having a size equal to or greater than 0.1 &mgr;m. Such a magnet alloy is obtained using a strip casting method or ultra cooling method and serves as material for an anisotropic exchange spring magnet to be applied to a motor.
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