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[期刊论文]

Investigation of magnetic properties of MnSi/Co and MnBi/Fe65CO35 nanocomposite permanent magnets by micro-magnetic simulation

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作者:

Li, Y. Q. (Li, Y. Q..) | Yue, M. (Yue, M..) (学者:岳明) | Wang, T. (Wang, T..) (学者:王腾) | 展开

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EI Scopus SCIE

摘要:

Demagnetization curves of anisotropic nanocomposite MnBi/Co and MnBi/Fe65Co35 permanent magnets were investigated by micro-magnetic Finite element method. Effects of volume ratio, deviation degree of orientation and intrinsic magnetic properties of the soft magnetic phase on the magnetic properties of the magnets were investigated. From the viewpoint of practical applications, to meet the requirement or hardness parameters, kappa=K/(mu M-0(s)2)(1/2) > 1, the calculation maximum (BH)max of MnBi/Co and MnBi/Fe65Co35 magnets are about 199 kJ/m(3) (V(Co)=22 vol%) and 196 kJ/m(3) (V(FeCo)=14 vol%), respectively, indicating their good potential in application. Compared with single phase MnBi magnet, the (BH), of nanocomposite MnBi/Co and MnBi/Fe65Co35 magnets increases by 66% and 63%, respectively. The remanence and coercivity of MnBi/Co nanocomposite magnets reduce as appearing a deviation degree of orientation, result of greatly decrease of the magnetic energy product. (C) 2015 Elsevier B.V. All rights reserved.

关键词:

Micro-magnetic finite element method MnBi/Co nanocomposite magnets MnBi/Fe65Co35 nanocomposite magnets Magnetic properties

作者机构:

  • [ 1 ] [Li, Y. Q.]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Yue, M.]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Wang, T.]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Wu, Q.]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Zhang, D. T.]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 6 ] [Gao, Y.]Samsung Adv Inst Technol, Beijing 100028, Peoples R China

通讯作者信息:

  • 岳明

    [Yue, M.]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China

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来源 :

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

ISSN: 0304-8853

年份: 2015

卷: 393

页码: 484-489

2 . 7 0 0

JCR@2022

ESI学科: PHYSICS;

ESI高被引阀值:190

JCR分区:2

中科院分区:3

被引次数:

WoS核心集被引频次: 17

SCOPUS被引频次: 19

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