Research progress on Sm2Co17-type sintered permanent magnet materials with high bending strength
Due to the urgent need for miniaturization and precision of Sm2Co17-type,intered permanent magnets in va-rious research fields,how to improve the bending strength of magnets is gradually receiving more and more attention and research.The reasons for the poor mechanical properties of Sm2Co17 sintered permanent magnet are discussed from two aspects of crystal structure and fracture mechanism.Further,the research progress on improving mechan-ical properties of Sm2Co17 sintered permanent magnet is described,such as element doping,composition regulation,reducing the anisotropy of mechanical properties of magnets,designing grain size and distribution,and the future re-search focus and development direction are pointed out.
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