Positive temperature coefficients of remanence and coercivity in precipitation-hardened Gd-Co-Fe-Cu-Zr alloys
文献类型：期刊论文
| 作者 | Rong, CB ; Zhang, J ; Zhang, HW ; Du, XB ; Zhang, SY ; Shen, BG |
| 刊名 | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
 |
| 出版日期 | 2004 |
| 卷号 | 279期号:2-3页码:143 |
| 关键词 | EARTH-COBALT MAGNETS PERMANENT-MAGNETS INTRINSIC-COERCIVITY REVERSAL MECHANISM DEPENDENCE MICROSTRUCTURE SUBSTITUTION |
| ISSN号 | 0304-8853 |
| 通讯作者 | Rong, CB (reprint author), Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | The high-temperature magnetic properties of precipitation-hardened GdxCo(89.5-x-y)Fe(8)Cu(y)Zr(2.5) (x - 11.5-13.5 and y = 7-17) alloys have been studied systematically. X-ray diffraction and transmission electron microscopy reveal that a cellular microstructure consisting of 2:17 cells surrounded by 1:5 cell boundaries is obtained after precipitation hardening. Thermomagnetic analysis further confirms the two-phase character and indicates that Cu mainly goes into the 1:5 phase. All samples exhibit a positive temperature coefficient of remanence alpha (= dM(r)/dT) from room temperature to about 600-700 K, while positive temperature coefficient of coercivity beta (= dH(c)/dT) is only observed in the alloys with low Cu content. It is found that the coercivity mechanism of the precipitation-hardened alloys varies with temperature and Cu content. (C) 2004 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51165]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Rong, CB,Zhang, J,Zhang, HW,et al. Positive temperature coefficients of remanence and coercivity in precipitation-hardened Gd-Co-Fe-Cu-Zr alloys[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2004,279(2-3):143. |
| APA | Rong, CB,Zhang, J,Zhang, HW,Du, XB,Zhang, SY,&Shen, BG.(2004).Positive temperature coefficients of remanence and coercivity in precipitation-hardened Gd-Co-Fe-Cu-Zr alloys.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,279(2-3),143. |
| MLA | Rong, CB,et al."Positive temperature coefficients of remanence and coercivity in precipitation-hardened Gd-Co-Fe-Cu-Zr alloys".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 279.2-3(2004):143. |
入库方式： OAI收割
来源：物理研究所
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