Effect of diffusing TbF3 powder on magnetic properties and microstructure transformation of sintered Nd-Fe-Cu-B magnets
文献类型：期刊论文
| 作者 | Lee, Don; Yang, Xiao; Guo, Shuai; Ding, Guangfei; Cao, Xuejing; Zeng, Jiling; Song, Jie; Yan, Aru |
| 刊名 | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
 |
| 出版日期 | 2017 |
| 卷号 | 443页码:179-183 |
| ISSN号 | 0304-8853 |
| 英文摘要 | The coercivity of sintered Nd-Fe-Cu-B magnets is markedly enhanced from 12.57 to 21.70 kOe while the remanence decreases from 13.80 to 13.49 kGs by grain boundary diffusion of TbF3 powder for 2 h. Microstructure analysis suggests that, during the diffusion process, F diffuses into the magnets easily and forms a new F-rich phase. The enrichment of F in grain boundary near the surface leads to the Cu movement into the interior and the Cu reduction in the surface of magnets. Diffusion of Tb leads to an increase of local total rare earth elements content. Under the combined effect of Cu reduction and increase of local total rare earth elements content, grain growth area is formed and further diffusion is suppressed. That excessive Tb diffuses into matrix phase leads to a decrease in remanence. When the grain growth area is removed, the deterioration of remanence recovers to 13.80 kGs without any reduction of coercivity. (C) 2017 Elsevier B.V. All rights reserved. |
| 公开日期 | 2017-12-25 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/13485]  |
| 专题 | 2017专题 |
| 推荐引用方式 GB/T 7714 | Lee, Don,Yang, Xiao,Guo, Shuai,et al. Effect of diffusing TbF3 powder on magnetic properties and microstructure transformation of sintered Nd-Fe-Cu-B magnets[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2017,443:179-183. |
| APA | Lee, Don.,Yang, Xiao.,Guo, Shuai.,Ding, Guangfei.,Cao, Xuejing.,...&Yan, Aru.(2017).Effect of diffusing TbF3 powder on magnetic properties and microstructure transformation of sintered Nd-Fe-Cu-B magnets.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,443,179-183. |
| MLA | Lee, Don,et al."Effect of diffusing TbF3 powder on magnetic properties and microstructure transformation of sintered Nd-Fe-Cu-B magnets".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 443(2017):179-183. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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