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	Temperature stability of coercivity in mischmetal-fe-co-b melt-spun ribbons
	Li,Rui1,2; Zhang,Hong-Rui1,2; Liu,Yao1,2; Zuo,Shu-Lan1,2; Xiong,Jie-Fu1,2; Zuo,Wen-Liang1,2; Zhao,Tong-Yun1,2; Hu,Feng-Xia1,2; Sun,Ji-Rong1,2; Shen,Bao-Gen1,2
刊名	Materials research express
	2018-05-02
卷号	5期号:5
关键词	Permanent magnets Coercivity thermal-stability Mischmetal-fe-b Grain size Intergranular exchange coupling
ISSN号	2053-1591
DOI	10.1088/2053-1591/aabf7d
英文摘要	Abstract coercivity temperature coefficient (β) of the permanent magnet depends on its intrinsic magnetic properties and microstructure. in this paper, the relationship between β and the temperature stabilities of magnetocrystalline anisotropy field (ha) and saturation magnetization (ms) as well as the microstructure is discussed. regarding two concerned microstructural factors: grain size and grain boundary, coercivity thermal-stabilities of mm13.5fe79.5b7 (mm-mischmetal: unseparated la-ce-pr-nd alloy) and mmxfe94?xb6 (x?=?12, 13, 14, 15, 16, 19) melt-spun ribbons, respectively, are investigated. high β values near the theoretical limit are obtained either by decreasing grain size or by reducing mm percentage. in addition, coercivities above room temperature of mm13.5fe79.5?ycoyb7 (y?=?0, 3, 6, 9, 12, 15) melt-spun ribbons are measured. the detailed influences of co substitutions on β are analyzed, and the weak temperature dependence of ms is proved to the reason for the observed decrease of β. these findings suggest that proper strategy to minimize local stray fields is the key to enhance coercivity thermal-stability of 2:14:1 structure magnet.
语种	英语
出版者	IOP Publishing
WOS记录号	IOP:2053-1591-5-5-AABF7D
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2373996
专题	物理研究所
作者单位	1.State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China 2.University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
推荐引用方式 GB/T 7714	Li,Rui,Zhang,Hong-Rui,Liu,Yao,et al. Temperature stability of coercivity in mischmetal-fe-co-b melt-spun ribbons[J]. Materials research express,2018,5(5).
APA	Li,Rui.,Zhang,Hong-Rui.,Liu,Yao.,Zuo,Shu-Lan.,Xiong,Jie-Fu.,...&Shen,Bao-Gen.(2018).Temperature stability of coercivity in mischmetal-fe-co-b melt-spun ribbons.Materials research express,5(5).
MLA	Li,Rui,et al."Temperature stability of coercivity in mischmetal-fe-co-b melt-spun ribbons".Materials research express 5.5(2018).

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