Effect of grain size and magnetocrystalline anisotropy on exchange coupling in nanocomposite two-phase Nd-Fe-B magnets
文献类型：期刊论文
| 作者 | Q. F. Xiao ; T. Zhao ; Z. D. Zhang ; E. Bruck ; K. H. J. Buschow ; F. R. de Boer |
| 刊名 | Journal of Magnetism and Magnetic Materials
 |
| 出版日期 | 2001 |
| 卷号 | 223期号:3页码:215-220 |
| 关键词 | nanocomposite magnet magnetocrystalline anisotropy exchange coupling Nd-Fe-B |
| ISSN号 | 0304-8853 |
| 中文摘要 | We have studied the exchange coupling in two-phase nanocrystalline alloy ribbons of the composition Nd-4-xSmxFe77.5B18.5 (x = 0.0, 0.1, 0.2, 0.3, 0.4 and 0.5). The grain size of the Fe3B phase changed from 16 to 23 nm by annealing between 670 degreesC and 760 degreesC for 5 min. From the measurements of the magnetic properties and the reversibility of magnetization, we derived that the mean critical grain size of the Fe3B phase required for full exchange coupling by the Nd2Fe14B phase is about 20 nm. A detailed study of the magnetization-reversal process was made on samples in which the magnetocrystalline anisotropy of the Nd2Fe14B phase was reduced by substitution of Sm for Nd. We showed that the exchange-coupled range can be markedly expanded and that the reduced remanence can be increased with increasing Sm content. (C) 2001 Elsevier Science B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36850]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Q. F. Xiao,T. Zhao,Z. D. Zhang,et al. Effect of grain size and magnetocrystalline anisotropy on exchange coupling in nanocomposite two-phase Nd-Fe-B magnets[J]. Journal of Magnetism and Magnetic Materials,2001,223(3):215-220. |
| APA | Q. F. Xiao,T. Zhao,Z. D. Zhang,E. Bruck,K. H. J. Buschow,&F. R. de Boer.(2001).Effect of grain size and magnetocrystalline anisotropy on exchange coupling in nanocomposite two-phase Nd-Fe-B magnets.Journal of Magnetism and Magnetic Materials,223(3),215-220. |
| MLA | Q. F. Xiao,et al."Effect of grain size and magnetocrystalline anisotropy on exchange coupling in nanocomposite two-phase Nd-Fe-B magnets".Journal of Magnetism and Magnetic Materials 223.3(2001):215-220. |
入库方式： OAI收割
来源：金属研究所
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