NIMTE OpenIR  > 2018专题
Improved corrosion resistance and thermal stability of sintered Nd-Fe-B magnets with holmium substitution
Di, Jinghui; Guo, Shuai; Chen, Ling; Yi, Pengpeng; Ding, Guangfei; Chen, Kan; Li, Ming; Lee, Don; Yan, Aru
2018
Source PublicationJOURNAL OF RARE EARTHS
Volume36Issue:8Pages:826-831
AbstractThe effects of Ho substitution for Nd on the microstructure, corrosion resistance and thermal stability of the Nd-Fe-B magnets were investigated. The (Nd,Ho)-O phase was formed with increasing Ho substitution. The results of potentiodynamic polarization and highly accelerated stress test show improved corrosion resistance with increasing Ho substitution. The optimum mass loss 0.29 mg/cm(2) is achieved. Moreover, the average temperature coefficients for remanence and coercivity in the range of 25-150 degrees C are both closer to zero, indicating improved thermal stability. The mechanisms for the improved corrosion resistance and thermal stability are discussed in relation to the microstructure featuring the (Nd,Ho)-O phase. (C) 2018 Published by Elsevier B.V. on behalf of Chinese Society of Rare Earths.
KeywordGrain-boundary Phase Intergranular Addition Permanent-magnets Ndfeb Magnets Coercivity Microstructure Diffusion Behavior Cu
Subject AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
Language英语
Document Type期刊论文
Identifierhttp://ir.nimte.ac.cn/handle/174433/17283
Collection2018专题
Recommended Citation
GB/T 7714
Di, Jinghui,Guo, Shuai,Chen, Ling,et al. Improved corrosion resistance and thermal stability of sintered Nd-Fe-B magnets with holmium substitution[J]. JOURNAL OF RARE EARTHS,2018,36(8):826-831.
APA Di, Jinghui.,Guo, Shuai.,Chen, Ling.,Yi, Pengpeng.,Ding, Guangfei.,...&Yan, Aru.(2018).Improved corrosion resistance and thermal stability of sintered Nd-Fe-B magnets with holmium substitution.JOURNAL OF RARE EARTHS,36(8),826-831.
MLA Di, Jinghui,et al."Improved corrosion resistance and thermal stability of sintered Nd-Fe-B magnets with holmium substitution".JOURNAL OF RARE EARTHS 36.8(2018):826-831.
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