| Rare earth permanent magnets Sm2（Co,Fe, Cu,Zr）17 for high temperature applications |
| |
| 引用本文： | 彭龙,;杨青慧,;张怀武,;徐光亮,;张明,;王敬东. Rare earth permanent magnets Sm2（Co,Fe, Cu,Zr）17 for high temperature applications[J]. 中国稀土学报(英文版), 2008, 26(3): 378-382. DOI: 10.1016/S1002-0721(08)60100-3 |
| |
| 作者姓名： | 彭龙, 杨青慧, 张怀武, 徐光亮, 张明, 王敬东 |
| |
| 作者单位： | [1]State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054,China; [2]Shcool of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China; [3]Southwest Institute of Applied Magnetics, Mianyang 621000, China |
| |
| 基金项目： | Project supported by the National Natural Science Foundation of China （90306015） and National Fund for Distinguished Young Scholars of China （60425102） |
| |
| 摘 要： | Sintered Sm（Coba1FexCu0.1Zr0.03）7.5 （x=0.09-0.21） permanent magnets with higher Fe content were found to have higher remanence Br and maximum energy product （BH）max at room temperature. Br and （BH）max reached maximum of 0.96 T and 176.7 kJ/m^3, respectively at room temperature when the Fe content x reached 0.21. However, the intrinsic coercivity Hci at room temperature increased gradually when the Fe content x increased from 0.09 to 0.15, but when x further increased to 0.21, Hcidecreased. Hci attained its peak value of 2276.6 kA/m with Fe content x=0.15 at room temperature. For magnets with x=0.15, Br, （BH）max and Hc1 reached 0.67 T, 81.2 kJ/m^3 and 509.4 kA/m at 500 ℃, respectively, showing good high temperature stability, which could be used in high temperature applications.
|
| 关 键 词： | SmCo 温度系数 稀土 开采技术 |
| 收稿时间： | 2007-05-25 |
| 修稿时间： | 11 July 2007. |
Rare earth permanent magnets Sm2(Co, Fe, Cu, Zr)17 for high temperature applications |
| |
| Long PENG, Qiuhui YANG, Huaiwu ZHANG, Guangliang XU, Ming ZHANG,Jingdong WANG. Rare earth permanent magnets Sm2(Co, Fe, Cu, Zr)17 for high temperature applications[J]. Journal of Rare Earths, 2008, 26(3): 378-382. DOI: 10.1016/S1002-0721(08)60100-3 |
| |
| Authors: | Long PENG Qiuhui YANG Huaiwu ZHANG Guangliang XU Ming ZHANG Jingdong WANG |
| |
| Affiliation: | aState Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China;bShcool of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China;cSouthwest Institute of Applied Magnetics, Mianyang 621000, China |
| |
| Abstract: | Sintered Sm(CobalFexCu0.1Zr0.03)7.5 (x=0.09–0.21) permanent magnets with higher Fe content were found to have higher remanence Br and maximum energy product (BH)max at room temperature. Br and (BH)max reached maximum of 0.96 T and 176.7 kJ/m3, respectively at room temperature when the Fe content x reached 0.21. However, the intrinsic coercivity Hci at room temperature increased gradually when the Fe content x increased from 0.09 to 0.15, but when x further increased to 0.21, Hci decreased. Hci attained its peak value of 2276.6 kA/m with Fe content x=0.15 at room temperature. For magnets with x=0.15, Br, (BH)max and Hci reached 0.67 T, 81.2 kJ/m3 and 509.4 kA/m at 500 °C, respectively, showing good high temperature stability, which could be used in high temperature applications. |
| |
| Keywords: | rare earth permanent magnets SmCo alloys coercivity temperature coefficient |
| 本文献已被 维普 ScienceDirect 等数据库收录！ |
|
