FABRICATION METHOD OF RARE EARTH-BASED SINTERED MAGNET

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Provided is a fabrication method of a rare earth-based sintered magnet including : a) a first doping step of mixing and sintering a first doping material including a first heavy rare earth compound with a rare earth-based magnet raw material powder to fabricate a first doped sintered body; and b) a second doping step of forming a coating layer of a second doping material including a second heavy rare earth compound on a surface of the first doped sintered body and performing a heat-treatment to fabricate a second doped sintered body.