发明授权
- 专利标题： Soft magnetic powder and magnetic shield composition
- 专利标题（中）： 软磁粉末和磁屏蔽组成
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申请号： US681061申请日： 1991-04-05
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公开(公告)号： US5207841A公开(公告)日： 1993-05-04
- 发明人: Masao Shigeta , Asako Kajita , Ippo Hirai
- 申请人： Masao Shigeta , Asako Kajita , Ippo Hirai
- 申请人地址： JPX Tokyo
- 专利权人： TDK Corporation
- 当前专利权人： TDK Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX2-97241 19900412; JPX2-115583 19900501
- 主分类号： C22C38/34
- IPC分类号： C22C38/34
摘要：
Soft magnetic powder comprising flat soft magnetic particles of an alloy having a composition defined and encompassed by polygon ABCDE in a Fe-Si-Cr ternary composition diagram of FIG. 1 or polygon JKLMN in a Fe-Si-Al ternary composition diagram of FIG. 4 is suitable for use in magnetic shields. The flat soft magnetic particles are prepared by furnishing alloy particles having a predetermined composition, flattening them, and heat treating the flat particles to develop a peak corresponding to plane index (002) in an X-ray diffraction diagram thereof.
公开/授权文献
- US5793609A PCMCIA card heat removal apparatus and methods 公开/授权日：1998-08-11
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