Study on Ultrafine-Grained Sintered Nd-Fe-B Magnets Produced From Jet-Milled HDDR Powders
文献类型：会议论文
| 作者 | Ding, Guangfei; Guo, Shuai; Cai, Lingwen; Chen, Ling; Liu, Jian; Lee, Don; Yan, Aru |
| 出版日期 | 2015 |
| 会议日期 | MAY 11-15, 2015 |
| 关键词 | INTRINSIC-COERCIVITY SIZE |
| 卷号 | 51 |
| 期号 | 11 |
| DOI | 10.1109/TMAG.2015.2437874 |
| 英文摘要 | Ultrafine-grained sintered Nd-Fe-B magnets were produced from jet-milled hydrogenation-disproportionation-desorption-recombination powders in a proper sintering condition. The coercivity of similar to 15 kOe was obtained by sintering below 950 degrees C, and the average grain size was <1 mu m. For the newly fine-grained magnets, a higher magnetic field is needed to magnetize them, giving rise to a two-step initial magnetization curve involving domain wall pinning at the grain boundary phase. Microstructure observation indicated that the Nd-rich phases did not encapsulate the 2:14:1 phases effectively, resulting in defects and interactions between adjacent 2:14:1 grains, which are responsible for the relatively low coercivity of the fine-grained magnets. |
| 学科主题 | Engineering ; Physics |
| ISSN号 | 0018-9464 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/23510]  |
| 专题 | 会议专题 会议专题_会议论文 |
| 推荐引用方式 GB/T 7714 | Ding, Guangfei,Guo, Shuai,Cai, Lingwen,et al. Study on Ultrafine-Grained Sintered Nd-Fe-B Magnets Produced From Jet-Milled HDDR Powders[C]. 见:. MAY 11-15, 2015. |
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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