Phase formation and magnetic properties of Nd2Fe14B-type Nd16Co76B8-xCx alloys and their hydrides

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	Phase formation and magnetic properties of Nd2Fe14B-type Nd16Co76B8-xCx alloys and their hydrides
	W. B. Cui; W. Liu; X. K. Lv; X. G. Zhao; Z. D. Zhang
	2007
发表期刊	Physica B-Condensed Matter
ISSN	0921-4526
卷号	400 期号:1-2 页码:273-277
摘要	An attempt is made to synthesize Nd2Co14C compound by mechanical alloying Nd16Co76B8-xCx (0 <= x <= 8) alloys and subsequent annealing. Phase formation and magnetic properties of Nd2Fe14B-type Nd16Co76B8-xCx alloys and their hydrides are investigated. The Nd2Co14(B,C) phase with Nd2Fe14B-type structure is formed for Nd16Co76B8-xCx (0 <= x <= 7) alloys, while NdCo7C sigma phase with TbCu7-type structure is observed in Nd16Co76C8 alloy. The lattice parameter c of the Nd2C014(l3,Q phase decreases with increasing the carbon content. A limit volume of the unit cell to form the Nd2Fe14B-type structure is estimated to be 0.870 nm(3). The spin-reorientation temperature T-SR increases with increasing the carbon content, due to an enhancement of magnetocrystalline anisotropy caused by carbon substitution for boron. After hydrogenation, the lattice expansion is observed for Nd16Co76B8-xCx (0 <= x <= 7) alloys. The spin-reorientation temperature of Nd16Co76B8-xCxHy (0 <= x <= 7) is much lower than that of the host alloys. Some structural and magnetic properties of hypothetic Nd2Co14C and Nd2Co14CHy compounds are estimated by extrapolation. (C) 2007 Elsevier B.V. All rights reserved.
部门归属	chinese acad sci, shenyang ntal lab mat sci, inst met res, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;liu, w (reprint author), chinese acad sci, shenyang ntal lab mat sci, inst met res, shenyang 110016, peoples r china;wliu@imr.ac.cn
关键词	Phase Formation Magnetic Properties Structure Anisotropy Spin-reorientation Rare-earth Compounds Crystallographic Properties Permanent-magnets Fe Nd Stability
URL	查看原文
WOS记录号	WOS:000250803000048
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33485
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. B. Cui,W. Liu,X. K. Lv,et al. Phase formation and magnetic properties of Nd2Fe14B-type Nd16Co76B8-xCx alloys and their hydrides[J]. Physica B-Condensed Matter,2007,400(1-2):273-277.
APA	W. B. Cui,W. Liu,X. K. Lv,X. G. Zhao,&Z. D. Zhang.(2007).Phase formation and magnetic properties of Nd2Fe14B-type Nd16Co76B8-xCx alloys and their hydrides.Physica B-Condensed Matter,400(1-2),273-277.
MLA	W. B. Cui,et al."Phase formation and magnetic properties of Nd2Fe14B-type Nd16Co76B8-xCx alloys and their hydrides".Physica B-Condensed Matter 400.1-2(2007):273-277.