Effect of Co and W additions on the structure and magnetic properties of Nd2Fe14B/alpha-Fe nanocomposite magnets
文献类型：期刊论文
| 作者 | C. Y. You ; X. K. Sun ; W. Liu ; B. Z. Cui ; X. G. Zhao ; Z. D. Zhang |
| 刊名 | Journal of Physics D-Applied Physics
 |
| 出版日期 | 2000 |
| 卷号 | 33期号:8页码:926-931 |
| 关键词 | nd-fe-b remanence enhancement alloys phase microstructure nb |
| ISSN号 | 0022-3727 |
| 中文摘要 | The effect of Co addition combined with W on the microstructure and magnetic properties of nanocomposite magnets with composition of (1 - x wt%)Nd8.55Fe84.49W0.60 B-0.636 + x wt% CO, prepared by mechanical alloying, has been investigated. The addition of W can increase the unit cell volume of soft and hard phases in nanocomposite: magnets, and cause the anisotropy field of the hard phase component to increase. Therefore, the addition of W can improve coercivity. On the other hand, addition of Co leads to a decrease of the grain size of the alpha-Fe soft phase component in nanocomposite magnets annealed at temperatures lower than 670 degrees C. It leads further to a decrease of the optimal annealing temperatures, an increase of the remanence and maximum magnetic energy product, and a slight decrease of the coercivity. With increasing the content of Co, the dependence of remanence J(r) on annealing temperature T-a changes from a convex shape, giving a maximum, to a monotonically decreasing one. These phenomena have been explained in terms of the variation of grain growth and exchange coupling between the grains, due to the addition of Co and W. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37228]  |
| 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 | C. Y. You,X. K. Sun,W. Liu,et al. Effect of Co and W additions on the structure and magnetic properties of Nd2Fe14B/alpha-Fe nanocomposite magnets[J]. Journal of Physics D-Applied Physics,2000,33(8):926-931. |
| APA | C. Y. You,X. K. Sun,W. Liu,B. Z. Cui,X. G. Zhao,&Z. D. Zhang.(2000).Effect of Co and W additions on the structure and magnetic properties of Nd2Fe14B/alpha-Fe nanocomposite magnets.Journal of Physics D-Applied Physics,33(8),926-931. |
| MLA | C. Y. You,et al."Effect of Co and W additions on the structure and magnetic properties of Nd2Fe14B/alpha-Fe nanocomposite magnets".Journal of Physics D-Applied Physics 33.8(2000):926-931. |
入库方式： OAI收割
来源：金属研究所
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