RARE EARTH ELEMENT SINTERED MAGNET AND METHOD FOR PRODUCING RARE EARTH ELEMENT SINTERED MAGNET

摘要

A method for producing a rare earth element sintered magnet which comprises applying a metal plating onto a Sm2Co17 type or R2Fe14B type magnet and then subjecting the resultant product to a heat treatment, or which comprises forming a metal oxide or nitride layer on the above metal plating layer or directly on the magnet. The method allows the production of a rare earth element sintered magnet being free from hydrogen embrittlement.