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R-T-B BASED PERMANENT MAGNET

2025-06-18 10:093310下载
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PROBLEM TO BE SOLVED : To provide an R-T-B based permanent based magnet easily applicable to the actual manufacture of an R-T-B based permanent based magnet, and having an effective plating film to secure a hardness. SOLUTION : The R-T-B based permanent based magnet 1 has a magnet element 2 composed of a sintered compact including at least a main-phase crystal grain comprising an R2T14B compound, and an intergranular phase containing more R than in the main-phase crystal grain; and a plating film 3 formed by an electrolytic Cu plating method for coating the surface of the magnetic element 2, and satisfied with the following inequality 0.005
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