Dysprosium Diffusion Behavior and Microstructure Modification in Sintered Nd-Fe-B Magnets via Dual-Alloy Method
文献类型：会议论文
| 作者 | Lin, Chaowei; Guo, Shuai; Fu, Wenbiao; Chen, Renjie; Lee, Don; Yan, Aru |
| 出版日期 | 2013 |
| 会议日期 | JAN 14-18, 2013 |
| 关键词 | COERCIVITY |
| 卷号 | 49 |
| 期号 | 7 |
| DOI | 10.1109/TMAG.2013.2243128 |
| 英文摘要 | Dysprosium diffusion and microstructure alteration behaviors in sintered Nd-Fe-B magnets via dual-alloy method have been investigated. The sintered magnets were prepared by blending Dy-free and Dy-rich powders with varying proportions. Results indicate that Dy element has already diffused from Dy-rich powders into the 2: 14: 1 phase of Dy-free powders and tended to homogenize in the bulk magnet, attributed to the coalescence of grains and dysprosium element concentration gradient. In addition, Dy and Pr/Nd elements counterdiffusion process redistributes the grain boundaries homogeneously. The fracture surfaces of magnets prepared via dual-alloy method almost appear intergranular fracture. It demonstrates that both of (Nd/Pr,Dy)(2)Fe14B phase formation and microstructure alteration have favored to coercivity enhancement and thermal stability improvement of the magnets. |
| 学科主题 | Engineering ; Physics |
| ISSN号 | 0018-9464 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/23598]  |
| 专题 | 会议专题 会议专题_会议论文 |
| 推荐引用方式 GB/T 7714 | Lin, Chaowei,Guo, Shuai,Fu, Wenbiao,et al. Dysprosium Diffusion Behavior and Microstructure Modification in Sintered Nd-Fe-B Magnets via Dual-Alloy Method[C]. 见:. JAN 14-18, 2013. |
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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