发明申请
- 专利标题： Soft Magnetic Material, Method of Manufacturing Soft Magnetic Material, Dust Core, and Method of Manufacturing Dust Core
- 专利标题（中）： 软磁材料，软磁材料制造方法，粉尘芯和制造粉尘芯的方法
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申请号： US11919704申请日： 2006-07-20
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公开(公告)号： US20080248245A1公开(公告)日： 2008-10-09
- 发明人: Toru Maeda , Haruhisa Toyoda , Naoto Igarashi , Kazuhiro Hirose , Seiji Ishitani , Hiroko Morii , Kazuyuki Hayashi
- 申请人： Toru Maeda , Haruhisa Toyoda , Naoto Igarashi , Kazuhiro Hirose , Seiji Ishitani , Hiroko Morii , Kazuyuki Hayashi
- 优先权： JP2005-225809 20050803
- 国际申请： PCT/JP2006/314409 WO 20060720
- 主分类号： B32B5/16
- IPC分类号： B32B5/16 ; B32B15/02 ; B05D1/00 ; C04B35/634
摘要：
A soft magnetic material includes a plurality of composite magnetic particles. Each of the plurality of composite magnetic particles has a metal magnetic particle including iron, a lower film surrounding the surface of the metal magnetic particle and including a nonferrous metal, and an insulating upper film surrounding the surface of the lower film and including an inorganic compound. The inorganic compound contains at least one element of oxygen and carbon. The nonferrous metal has an affinity with at least one of oxygen and carbon that is larger than such affinity of iron. The nonferrous metal has a diffusion coefficient with respect to at least one of oxygen and carbon that is smaller than such diffusion coefficient of iron. Thus, a soft magnetic material that provides desirable magnetic properties, a method of manufacturing a soft magnetic material, a dust core, and a method of manufacturing a dust core are provided.
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