Multi-magnetic phase behaviour of the Nd60Fe30Al10 amorphous hard magnetic alloy

被引:28
作者
Dan, NH
Phuc, NX
Hong, NM
Ding, J
Givord, D
机构
[1] NCST, Inst Sci Mat, Hanoi, Vietnam
[2] Natl Univ Singapore, Dept Mat Sci, Singapore 119260, Singapore
[3] CNRS, Lab Louis Neel, F-38042 Grenoble, France
关键词
rare earth-transition metal alloys; bulk amorphous materials; hard magnetic materials; coercivity mechanism;
D O I
10.1016/S0304-8853(00)00938-0
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The Nd60Fe30Al10 alloy prepared at slow cooling rate is partly amorphous, while that obtained at quenching rate of 30 m/s is fully amorphous. All samples contain two main phases: one hard magnetic phase ordering above room temperature and a soft one ordering at about 50 K. The hard phase has an intrinsic coercivity as high as 8 T at 4 K and is supposedly originated from a cluster amorphous or ill-crystallized state. Besides, there is a minor magnetically soft phase ordering at about 260 K in the slowly cooled samples and about 250 K in the 30 m/s melt-spun sample. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:1385 / 1387
页数:3
相关论文
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