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A method for manufacturing a heavy rare earth grain boundary diffusion type RE-Fe-B type rare earth magnet, and a heavy rare earth grain boundary diffusion type RE-Fe-B type rare earth magnet manufactured by the method.
A method for manufacturing a heavy rare earth grain boundary diffusion type RE-Fe-B type rare earth magnet, and a heavy rare earth grain boundary diffusion type RE-Fe-B type rare earth magnet manufactured by the method.
The present invention relates to a method for producing a heavy rare earth grain-boundary-diffused RE-Fe-B-based rare earth magnet and a heavy rare earth grain-boundary-diffused RE-Fe-B-based rare earth magnet produced thereby, and more particularly to a method for producing a heavy rare earth grain-boundary-diffused RE-Fe-B-based rare earth sintered magnet having a reduced content of a heavy rare earth element, in which a hydrogen compound of a heavy rare earth is mainly used as a diffusion material in the production of the grain-boundary-diffused magnet, so that a product having uniform and stable quality can be produced, and the coercive force of the magnet can be increased while minimizing the amount of heavy rare earth used in the production of the grain-boundary-diffused magnet, by solving the problem that the heavy rare earth is not uniformly diffused into the magnet, and a heavy rare earth grain-boundary-diffused RE-Fe-B-based rare earth magnet produced thereby.
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