发明申请
- 专利标题： METHOD FOR PRODUCING MAGNETOSTRICTIVE MATERIAL
- 专利标题（中）： 生产磁性材料的方法
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申请号： US15102244申请日： 2014-12-05
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公开(公告)号： US20160300998A1公开(公告)日： 2016-10-13
- 发明人: Yasufumi FURUYA , Shinichi YAMAURA , Takashi NAKAJIMA , Takashi EBATA , Takenobu SATO
- 申请人： HIROSAKI UNIVERSITY , TOHOKU UNIVERSITY , TOHOKU STEEL Co., Ltd.
- 申请人地址： JP Hirosaki-shi, Aomori JP Sendai-shi, Miyagi JP Shibata-gun, Miyagi
- 专利权人： HIROSAKI UNIVERSITY,TOHOKU UNIVERSITY,TOHOKU STEEL Co., Ltd.
- 当前专利权人： HIROSAKI UNIVERSITY,TOHOKU UNIVERSITY,TOHOKU STEEL Co., Ltd.
- 当前专利权人地址： JP Hirosaki-shi, Aomori JP Sendai-shi, Miyagi JP Shibata-gun, Miyagi
- 优先权： JP2013-253586 20131206
- 国际申请： PCT/JP2014/082249 WO 20141205
- 主分类号： H01L41/47
- IPC分类号： H01L41/47 ; H01L41/20 ; H01L41/12 ; C22F1/10 ; C22C19/07
摘要：
A method for producing a magnetostrictive material and a method for increasing the value of magnetostriction can increase the value of magnetostriction of magnetostrictive materials used, for example, in vibration power generation and force sensors utilizing inverse magnetostriction phenomenon. A magnetostrictive material having a value of magnetostriction of 100 ppm or more is produced by melting and casting an alloy material in the composition of range of 67-87 wt % Co with the balance consisting of Fe and unavoidable impurities and then performing hot forging. Furthermore, a magnetostrictive material having a value of magnetostriction of 130 ppm or more can be produced by performing cold rolling after the hot forging. Heat treatment at 400-1000° C. may also be performed after hot working or cold working.
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