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RARE EARTH PERMANENT MAGNET AND METHOD OF MANUFACTURING THE SAME 发明申请

2023-05-20 3480 63K 0

专利信息

申请日期 2025-07-10 申请号 JP2014035213
公开(公告)号 JP2015162491A 公开(公告)日 2015-09-07
公开国别 JP 申请人省市代码 全国
申请人 MITSUBISHI ELECTRIC CORP
简介 PROBLEM TO BE SOLVED : To provide a rare earth permanent magnet and a method of manufacturing the same, capable of suppressing the reduction in coercive force even when compression stress is applied. SOLUTION : A rare earth permanent magnet has a crystal grain boundary and its grain boundary phase is made from metal glass. Moreover, a method of manufacturing the rare earth permanent magnet is a method of manufacturing the rare earth permanent magnet having the crystal grain boundary. This manufacturing method includes the steps of : forming a thin film of metal glass on the surface of the main phase; and sintering the thin film of the metal glass formed on the main phase and the surface of the main phase at a temperature equal to or more than the glass transition temperature of the metal glass and equal to or less than the crystallization temperature thereof to form the grain boundary phase of the metal glass. COPYRIGHT : (C)2015, JPO&INPIT


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