Enhanced coercivity of melt-spun Sm(Co,Fe,Cu,Zr)z ribbons annealed by improved process

被引：7
|
作者：
Peng, Long [1 ]
Zhang, Huaiwu [1 ]
Xiao, John Q. [2 ]
机构：
[1] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China
[2] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2008年 / 320卷 / 07期
关键词：
nanocrystalline material; melt-spun permanent magnet; SmCo alloy; rapid thermal annealing; coercivity;
D O I：
10.1016/j.jmmm.2007.11.012
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of conventional thermal annealing (CTA), rapid thermal annealing (RTA) and rapid recurrent thermal annealing ( RRTA) on coercivity of the melt-spun Sm(Co0.6Fe0.27Cu0.1Zr0.03)(7.5) ribbons were systematically studied. The results show that the annealing parameters greatly affect the coercivity of the ribbons. The optimum coercivity is 9.8, 8.9 and 10.2 kOe for the CTA-treated, RTA-treated and RRTA-treated ribbons, respectively, indicating that the coercivity is not enhanced only by elevating the heating rate. Nevertheless, the coercivity increases to 15.1 kOe for the RRTA-treated ribbons when the cooling rate decreases to 1 degrees C/min. (c) 2007 Elsevier B. V. All rights reserved.
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页码：1377 / 1381
页数：5
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