Effective microstructure optimization and coercivity enhancement of sintered Nd-Fe-B magnet by grain boundary diffusion of Pr60Tb13Al27 alloy
文献类型：期刊论文
| 作者 | Jin, Lei; Ding, Guangfei; Zhu, Jinhao; Jin, Zhehuan; Zheng, Bo; Guo, Shuai; Chen, Renjie; Yan, Aru; Liu, Xincai |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2021 |
| 卷号 | 870 |
| 关键词 | TBF3 DIFFUSION DY-FREE MECHANISM ELEMENTS SHELL |
| 英文摘要 | Commercial sintered Nd-Fe-B magnet was grain boundary diffusion (GBD) processed by Pr60Tb13Al27 and Tb73Al27 alloys. Although the Tb content is only 13 at% in the Pr60Tb13Al27 alloy, the coercivity was significantly enhanced from 15.18 kOe to 26.30 kOe in the magnet diffused by Pr60Tb13Al27, higher than 24.08 kOe of the Tb73Al27 GBD magnet. This suggests that the substitution of Tb(60 at%) by Pr in the Tb73Al27 alloy can further enhance coercivity. Detailed microstructure analysis showed that, in the Pr60Tb13Al27 GBD magnet, the Tb-rich shell thickness was reduced and the two-layer Tb-rich shell was formed. Furthermore, a large number of continuous grain boundary phases was observed, which significantly enhances the exchange-decoupling effect between adjacent grains. The effect of Pr for the Tb-rich shell and grain boundary structure was discussed based on the experimental results. (c) 2021 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21718]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Ding, GF 2.Guo, S (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technologyand Engn, Key Lab Magnet Mat & Devices, Ningbo 315201, Peoples R China. 3.Guo, S (corresponding author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Jin, Lei,Ding, Guangfei,Zhu, Jinhao,et al. Effective microstructure optimization and coercivity enhancement of sintered Nd-Fe-B magnet by grain boundary diffusion of Pr60Tb13Al27 alloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,870. |
| APA | Jin, Lei.,Ding, Guangfei.,Zhu, Jinhao.,Jin, Zhehuan.,Zheng, Bo.,...&Liu, Xincai.(2021).Effective microstructure optimization and coercivity enhancement of sintered Nd-Fe-B magnet by grain boundary diffusion of Pr60Tb13Al27 alloy.JOURNAL OF ALLOYS AND COMPOUNDS,870. |
| MLA | Jin, Lei,et al."Effective microstructure optimization and coercivity enhancement of sintered Nd-Fe-B magnet by grain boundary diffusion of Pr60Tb13Al27 alloy".JOURNAL OF ALLOYS AND COMPOUNDS 870(2021). |
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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