Remanence enhancement in nanocrystalline CoPt bulk magnets
文献类型：期刊论文
| 作者 | Xiao, QF; Bruck, E; Zhang, ZD; de Boer, FR; Buschow, KHJ |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2002-04-18 |
| 卷号 | 336期号:1-2页码:41-45 |
| 关键词 | transition metal alloys crystal structure permanent magnets anisotropy magnetic measurements |
| ISSN号 | 0925-8388 |
| 通讯作者 | Xiao, QF() |
| 英文摘要 | The effect of the atomic disorder-order transformation on remanence enhancement and coercivity in isotropic CoPt magnets has been studied by isothermal annealing at 675degreesC, well below the transformation temperature, for 10-80 min after quenching in ice-water from 900degreesC. The results of X-ray diffraction, transmission electron microscopy, alternating-current (ac) susceptibility and magnetization measurements indicate that the strong remanence enhancement effect originates from exchange coupling between the face-centered-tetragonal (fet) ordered hard-magnetic precipitated phase and the face-centered-cubic (fec) disordered soft-magnetic matrix phase during the initial ordering transformation. The non-uniform distribution of the magnetic anisotropy results in a lower reversibility, unlike the so-called exchange spring magnet. (C) 2002 Elsevier Science B.V. All rights reserved. |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000174761400008 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.imr.ac.cn/handle/321006/114266]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Xiao, QF |
| 作者单位 | 1.Univ Amsterdam, Van Der Waals Zeeman Inst, NL-1018 XE Amsterdam, Netherlands 2.Chinese Acad Sci, Met Res Inst, Shenyang 110015, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, QF,Bruck, E,Zhang, ZD,et al. Remanence enhancement in nanocrystalline CoPt bulk magnets[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2002,336(1-2):41-45. |
| APA | Xiao, QF,Bruck, E,Zhang, ZD,de Boer, FR,&Buschow, KHJ.(2002).Remanence enhancement in nanocrystalline CoPt bulk magnets.JOURNAL OF ALLOYS AND COMPOUNDS,336(1-2),41-45. |
| MLA | Xiao, QF,et al."Remanence enhancement in nanocrystalline CoPt bulk magnets".JOURNAL OF ALLOYS AND COMPOUNDS 336.1-2(2002):41-45. |
入库方式： OAI收割
来源：金属研究所
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