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Unreduced Maximum Energy Product for (Sm1-yCey)2Fe17Nx When Less Than 33 Atomic% Cerium Substitutes for Samarium
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    Abstract:

    Magnetic properties and microstructure of fully nitrided (Sm1-yCey)2Fe17Nx (y = 0, 0.20, 0.33, 0.40, 0.45, 0.50, 0.67, 0.80, 1.00) powders have been investigated. When 33 atomic% Ce is substituted for Sm, maximum energy product (BH)max changes from 17.8 MGOe to 17.6 MGOe with almost no decrease. Accordingly, performance/rare earth price ratio increases by 39.2%. According to the energy dispersive spectroscopy (EDS) analysis, Ce tends to be distributed in the REFe3/REFe2 grain boundary phase. Meanwhile, valence change of the Ce ion in (Sm1-yCey)2Fe17Nx was confirmed by XPS.

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[Xu Jianwei, Zheng Jingwu, Chen Haibo, Qiao Liang, Ying Yao, Cai Wei, Li Wangchang, Yu Jing, Lin Min, Che Shenglei. Unreduced Maximum Energy Product for (Sm1-yCey)2Fe17Nx When Less Than 33 Atomic% Cerium Substitutes for Samarium[J]. Rare Metal Materials and Engineering,2020,49(10):3412~3418.]
DOI:10.12442/j. issn.1002-185X.20190839

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History
  • Received:October 11,2019
  • Revised:November 08,2019
  • Adopted:November 12,2019
  • Online: November 04,2020
  • Published: