发明申请
- 专利标题： Low Magnetostrictive Body and Dust Core Using the Same
- 专利标题（中）： 低磁致伸缩体和使用其的粉尘芯
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申请号： US11921021申请日： 2006-05-23
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公开(公告)号： US20090220372A1公开(公告)日： 2009-09-03
- 发明人: Takeshi Hattori , Shin Tajima , Masaki Sugiyama , Hidefumi Kishimoto , Toshiya Yamaguchi , Tadayoshi Kikkou
- 申请人： Takeshi Hattori , Shin Tajima , Masaki Sugiyama , Hidefumi Kishimoto , Toshiya Yamaguchi , Tadayoshi Kikkou
- 优先权： JP2005-153808 20050526
- 国际申请： PCT/JP2006/310273 WO 20060523
- 主分类号： B22F3/12
- IPC分类号： B22F3/12 ; H01F1/26 ; C22C38/00 ; C22C38/02
摘要：
Disclosed is a low cost, low magnetostriction body which is decreased only in magnetostriction while maintaining magnetic characteristics such as loss and saturation magnetization at desired values. Also disclosed is a dust core using such a low magnetostriction body. Specifically disclosed is a low magnetostriction body obtained by shaping a soft magnetic material powder added with an organic compound having an effect of changing the magnetostriction of the soft magnetic material when combined with it, and heat-treating a green compact in an inert atmosphere. The absolute value of the magnetostriction λO-P (1 T/50 Hz) of the low magnetostriction body is not more than 1.0×10−6. Also specifically disclosed is a dust core using such a low magnetostriction body.