Magnetic properties and coercivity mechanism of precipitation-hardened Pr1.0-xGdxCo5.7CuTi0.3 magnets | |
Rong, CB ; Chen, RJ ; Zhang, HW ; Zhang, J ; Zhang, SY ; Shen, BG | |
刊名 | JOURNAL OF PHYSICS D-APPLIED PHYSICS
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2004 | |
卷号 | 37期号:23页码:3285 |
关键词 | ANOMALOUS TEMPERATURE-DEPENDENCE EARTH-COBALT MAGNETS FE-B MAGNETS PERMANENT-MAGNETS REVERSIBLE MAGNETIZATION CU BEHAVIOR NDFEB |
ISSN号 | 0022-3727 |
通讯作者 | Rong, CB: Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100080, Peoples R China. |
中文摘要 | Pr1.0-x,GdxCo5.7CuTi0.3 (X = 0.0-0.5) samples have been prepared by arc melting and precipitation hardening. X-ray diffraction and transmission electron microscopy reveal that their microstructures consist of a rhombohedral 2: 17 matrix phase surrounded by a hexagonal 1 : 5 cell boundary phase. Gd addition leads to an increase in the Curie temperatures of both the 1 : 5 and 2: 17 phases. The temperature coefficient of saturation magnetization (77 = d J(S)/dT) increases with increasing x and a nearly zero eta is obtained in the magnet with x = 0.5. Positive temperature coefficients of coercivity H-c and energy product (BH)(max) have been observed in all samples. Thus, Hc of about 0.7 T and (BH)(max) of about 3.0 MG Oe are obtained in the Gd-substituted sample at high temperatures. The magnetization reversal of the Pr-Co based precipitation-hardened magnets is dominated by domain-wall pinning in the whole temperature range. |
收录类别 | SCI |
语种 | 英语 |
公开日期 | 2013-09-18 |
内容类型 | 期刊论文 |
源URL | [http://ir.iphy.ac.cn/handle/311004/41281] ![]() |
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,Chen, RJ,Zhang, HW,et al. Magnetic properties and coercivity mechanism of precipitation-hardened Pr1.0-xGdxCo5.7CuTi0.3 magnets[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2004,37(23):3285. |
APA | Rong, CB,Chen, RJ,Zhang, HW,Zhang, J,Zhang, SY,&Shen, BG.(2004).Magnetic properties and coercivity mechanism of precipitation-hardened Pr1.0-xGdxCo5.7CuTi0.3 magnets.JOURNAL OF PHYSICS D-APPLIED PHYSICS,37(23),3285. |
MLA | Rong, CB,et al."Magnetic properties and coercivity mechanism of precipitation-hardened Pr1.0-xGdxCo5.7CuTi0.3 magnets".JOURNAL OF PHYSICS D-APPLIED PHYSICS 37.23(2004):3285. |
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