Permanent magnet and manufacturing method thereof, and motor and generator using the same

文件类型：PDF文档
文件大小：1910K
In one embodiment, a permanent magnet includes a composition represented by RpFeqMrCusCo100-p-q-r-s (R : rare earth element, M : at least one element selected from Zr, Ti and Hf, 10≦p≦13.5 atomic %, 28≦q≦40 atomic %, 0.88≦r≦7.2 atomic %, 4≦s≦13.5 atomic %), and a metallic structure in which a composition region having an Fe concentration of 28 mol % or more is a main phase. A Cu concentration in the main phase is 5 mol % or more.