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

被引：1

作者：

彭龙 ^{[1
]}

薛刚 ^{[1
]}

张怀武 ^{[1
]}

机构：

[1] State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China

来源：

JournalofRareEarths | 2009年 / 27卷 / 01期

关键词：

rare earth permanent magnets; SmCo alloys; melt-spun; anneal; magnetic properties;

D O I：

暂无

中图分类号：

TG113.225 [];

学科分类号：

080502 ;

摘要：

Sm(Co0.6Fe0.27Cu0.1Zr0.03)7.5 ribbons were prepared by melt-spun method.The results showed that the remnant magnetization Mr and intrinsic coercivity Hci had a rapid increase when the heating rate increased from 5 to 10 °C/min.But the increase of Mr and Hci were observed to be very little when the heating rate was further increased to 20 °C/min.10 °C/min was the critical heating rate for obtaining high magnetic properties.The maximum values of Mr and Hci reached 0.70 T and 780.1 kA/m when the annealing temperature and annealing time were optimized to be 800 °C and 1 h, respectively.Proper second-step heat treatment could suppress the decrease of Hci when the cooling rate increased from 0.7 to 5 °C/min, which could reduce the cooling time effectively.

引用

页码：96 / 99

页数：4

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