发明名称 Magnetic powder and bonded magnet
摘要 Disclosed herein is a magnetic powder which can provide a bonded magnet having high mechanical strength and excellent magnetic properties. The magnetic powder has an alloy composition containing a rare-earth element and a transition metal, wherein the magnetic powder includes particles each of which is formed with a number of ridges or recesses on at least a part of a surface thereof. In this magnetic powder, it is preferable that when the mean particle size of the magnetic powder is defined by amum, the average length of the ridges or recesses is equal to or greater than a/40mum. Further, preferably, the ridges or recesses are arranged in roughly parallel with each other so as to have an average pitch of 0.5-100mum.
申请公布号 US2002023697(A1) 申请公布日期 2002.02.28
申请号 US20010840632 申请日期 2001.04.23
申请人 ARAI AKIRA;KATO HIROSHI 发明人 ARAI AKIRA;KATO HIROSHI
分类号 B22F1/00;B22F3/00;H01F1/053;H01F1/055;H01F1/057;H01F1/06;H01F1/08;(IPC1-7):H01F1/03;H01F1/14;H01F1/18 主分类号 B22F1/00
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