Effects of Mn addition on the structures, magnetic properties and phase transformation of SmCo(6.7-x)Mn(x)Cr(0.3) magnets

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	Effects of Mn addition on the structures, magnetic properties and phase transformation of SmCo(6.7-x)Mn(x)Cr(0.3) magnets
	Q. Yao; W. Liu; X. G. Zhao; Z. D. Zhang
	2009
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	476 期号:1-2 页码:19-23
摘要	The effects of Mn addition on the structures, magnetic properties and phase transformation of mechanically alloyed SmCo(6.7-x)Mn(x)Cr(0.3) (x = 0-0.6) magnets have been studied systematically. The results show that a small amount of Mn addition facilitates the formation of Th(2)Zn(17)-type 2:17 phase and significantly improves the intrinsic coercivities and the maximum energy products of the SmCo(6.7-x)Mn(x)Cr(0.3) alloys. The phase transformation from Th(2)Ni(17)-type to Th(2)Zn(17)-type structure is observed in annealing the alloys. More Mn addition leads to the enhancement of the critical annealing temperature above which the magnetically soft Co phase appears, leading to an improvement in thermal stability of the magnetically hard 2:17 phase. The highest (i)H(c) of 17.2 kOe and the largest (BH)(max) of 7.1 MGOe are achieved for the SmCo(6.1)Mn(0.6)Cr(0.3) alloy annealed at 800 degrees C for 30 min. (C) 2008 Elsevier B.V. All rights reserved.
部门归属	[liu, w.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. chinese acad sci, shenyang natl lab mat sci, int ctr mat phys, shenyang 110016, peoples r china.;liu, w (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;wliu@imr.ac.cn
关键词	Permanent Magnets Sm(Co Mechanical Alloying Fe X-ray Diffraction Cu Magnetic Zr)(z) Ribbons Measurements Abnormal Temperature-dependence Earth-cobalt Magnets Permanent-magnets Intrinsic-coercivity Reversal Mechanism Fe Cu Anisotropy Oxidation
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32501
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. Yao,W. Liu,X. G. Zhao,et al. Effects of Mn addition on the structures, magnetic properties and phase transformation of SmCo(6.7-x)Mn(x)Cr(0.3) magnets[J]. Journal of Alloys and Compounds,2009,476(1-2):19-23.
APA	Q. Yao,W. Liu,X. G. Zhao,&Z. D. Zhang.(2009).Effects of Mn addition on the structures, magnetic properties and phase transformation of SmCo(6.7-x)Mn(x)Cr(0.3) magnets.Journal of Alloys and Compounds,476(1-2),19-23.
MLA	Q. Yao,et al."Effects of Mn addition on the structures, magnetic properties and phase transformation of SmCo(6.7-x)Mn(x)Cr(0.3) magnets".Journal of Alloys and Compounds 476.1-2(2009):19-23.