Effects of the precursor ingot for Nd2Fe14B/alpha-Fe nanocomposite magnets prepared by mechanical milling
文献类型：期刊论文
| 作者 | C. Y. You ; X. K. Sun ; L. Y. Xiong ; W. Liu ; B. Z. Cui ; X. G. Zhao ; D. Y. Geng ; Z. D. Zhang |
| 刊名 | Journal of Magnetism and Magnetic Materials
 |
| 出版日期 | 2004 |
| 卷号 | 268期号:3页码:403-409 |
| 关键词 | nanocomposite magnets coercivity interfacial structure exchange coupling positron lifetime positron-lifetime remanence co fe enhancement additions powders alloys |
| ISSN号 | 0304-8853 |
| 中文摘要 | The nanocomposite Nd8.0Fe88.0-xCoxB4.0 (X = 0, 5.4) magnets are prepared by mechanically milling mixtures of the alloy powder and alpha-Fe powder. Compared with the results of the two kinds of magnets with the same nominal composition, it is found that using an Fe-rich ingot in the preparation process is useful for improving magnetic properties. The positron annihilation studies show two kinds of interface structures in the magnets: one of short lifetime is related to the free volume with a single-vacancy size; one of longer lifetime is related to a porous atomic structure. Use of the Fe-rich ingot in the preparation process produces a relatively compact interface structure, resulting in improvement of magnetic properties due to the enhancement of the exchange coupling. A proper Co substitution for Fe enhances the exchange coupling between the soft and hard magnetic phases, thus making magnetic properties better. (C) 2003 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35687]  |
| 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,L. Y. Xiong,et al. Effects of the precursor ingot for Nd2Fe14B/alpha-Fe nanocomposite magnets prepared by mechanical milling[J]. Journal of Magnetism and Magnetic Materials,2004,268(3):403-409. |
| APA | C. Y. You.,X. K. Sun.,L. Y. Xiong.,W. Liu.,B. Z. Cui.,...&Z. D. Zhang.(2004).Effects of the precursor ingot for Nd2Fe14B/alpha-Fe nanocomposite magnets prepared by mechanical milling.Journal of Magnetism and Magnetic Materials,268(3),403-409. |
| MLA | C. Y. You,et al."Effects of the precursor ingot for Nd2Fe14B/alpha-Fe nanocomposite magnets prepared by mechanical milling".Journal of Magnetism and Magnetic Materials 268.3(2004):403-409. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。