Effect of annealing process on magnetic properties of Sm(Co0.6Fe0.27Cu0.1Zr0.03)7.5 ribbons

被引：2
|
作者：
Peng Long [1 ]
Xue Gang [1 ]
Mang Huaiwu [1 ]
机构：
[1] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China
来源：
JOURNAL OF RARE EARTHS | 2009年 / 27卷 / 01期
关键词：
rare earth permanent magnets; SmCo alloys; melt-spun; anneal; magnetic properties; SPUN SM(CO; FE; CU; ZR)(Z); MAGNETS; COERCIVITY; ALLOYS;
D O I：
10.1016/S1002-0721(08)60199-4
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Sm(Co0.6Fe0.27Cu0.1Zr0.03)(7.5) ribbons were prepared by melt-spun method. The results showed that the remnant magnetization M-r and intrinsic coercivity H-ci had a rapid increase when the heating rate increased from 5 to 10 degrees C/min. But the increase of M-r and H-ci were observed to be very little when the heating rate was further increased to 20 degrees C/min. 10 degrees C/min was the critical heating rate for obtaining high magnetic properties. The maximum values of M-r and H-ci reached 0.70 T and 780.1 kA/m when the annealing temperature and annealing time were optimized to be 800 degrees C and 1 h, respectively. Proper second-step heat treatment could suppress the decrease of H-ci when the cooling rate increased from 0.7 to 5 degrees C/min, which could reduce the cooling time effectively.
引用
收藏
页码：96 / 99
页数：4
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