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
发表期刊JOURNAL OF RARE EARTHS
卷号36期号:8页码:826-831
摘要The 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.
关键词Grain-boundary Phase Intergranular Addition Permanent-magnets Ndfeb Magnets Coercivity Microstructure Diffusion Behavior Cu
学科领域Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/17283
专题2018专题
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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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