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柳昆,王书桓,冯运莉,赵定国.Nd2Fe14B/α-Fe永磁材料中软磁相晶粒尺寸及其含量的确定[J].稀有金属材料与工程(英文),2019,48(7):2215~2219.[Liu Kun,Wang Shu-huan,Feng Yun-li and Zhao Ding-guo.Determination of Size and Content of Soft Magnetic Phase Grain in Nd2Fe14B/α-FePermanent Magnetic Material[J].Rare Metal Materials and Engineering,2019,48(7):2215~2219.]
Determination of Size and Content of Soft Magnetic Phase Grain in Nd2Fe14B/α-FePermanent Magnetic Material
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Received:January 30, 2018  Revised:March 22, 2018
DOI:
Key words: nano two-phase permanent magnet material  intergranular exchange coupling  grain size  Phase content
Foundation item:国家自然基金 编号51574104,河北省研究生创新资助项目(2017B04)
Author NameAffiliation
Liu Kun,Wang Shu-huan,Feng Yun-li and Zhao Ding-guo  
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Abstract:
      Based on the experimental results and analysis of grain size and content of soft magnetic phase in Nd2Fe14B/α-Fe permanent magnetic material,simple models were established to give a further evidence and relatively accurate result of grain size and content of soft magnetic phase in two-phase nanometer composite permanent magnetic materials. The comprehensive analysis shows, when obtain the optimal magnetic of Nd2Fe14B/α-Fe permanent magnetic material, the size of soft magnetic phase ~ 8 nm, and the content ~ 40%. The data lay a foundation in theory for the requirement of grain size and phase content to obtain the optimal magnetic of two-phase nanometer composite permanent magnetic materials, FePt / Fe3O4 and Sm2Fe17N3/α-Fe for example.