The technology and mechanism of coercivity promotion of Ce-rich dual-main-phase sintered magnets

被引：31
作者：
Zhang, Lele [1 ,2 ]
Zhu, Minggang [1 ,2 ]
Song, Liwei [1 ]
Liu, Tao [1 ]
Fang, Yikun [1 ,2 ]
Guo, Yingjian [1 ]
Sun, Wei [2 ]
Li, Wei [1 ,2 ]
机构：
[1] Ctr Iron & Steel Res Inst, Div Funct Mat, Beijing 100081, Peoples R China
[2] Natl Engn Res Ctr Magnet Mat, Beijing 102600, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2019年 / 490卷
基金：
中国国家自然科学基金;
关键词：
Coercivity promotion; Diffusion process; Dual-main-phase; Ce-rich sintered magnets; GRAIN-BOUNDARY DIFFUSION; FE-B MAGNETS; ND; ENHANCEMENT; NANOSTRUCTURES;
D O I：
10.1016/j.jmmm.2019.165414
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The diffusion treatment of suspension liquid of Dy, Tb and TbF3 coated onto Ce-rich dual-main-phase Nd-Fe-B/(Nd, Ce)-Fe-B sintered magnets was carried out. The magnetic properties, microstructure and temperature characteristics of three kinds of diffusion magnets were studied. The optimum diffusion temperature of Dy, Tb and TbF3 was obtained by adjusting the heat treatment process. The most significant aspect of improving magnetic properties is that the coercivity achieves the optimal effect with the remanence lossless slightly. Amount of increase of H si after diffusion is: Tb > Dy > TbF3; Proposing the diffusion process mainly consists of three aspects firstly, and respective diffusion coefficients.
引用
收藏
页数：9
相关论文
共 28 条
  • [1] Study of high-coercivity sintered NdFeB magnets
    Bai, G.
    Gao, R. W.
    Sun, Y.
    Han, G. B.
    Wang, B.
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 308 (01) : 20 - 23
  • [2] Effect of rare earth content on TbF3 diffusion in sintered Nd-Fe-B magnets by electrophoretic deposition
    Cao, Xuejing
    Chen, Ling
    Guo, Shuai
    Fan, Fengchun
    Chen, Renjie
    Yan, Aru
    [J]. SCRIPTA MATERIALIA, 2017, 131 : 24 - 28
  • [3] Loss-Minimization-Based Charging Strategy for Lithium-Ion Battery
    Chen, Zheng
    Xia, Bing
    Mi, Chunting Chris
    Xiong, Rui
    [J]. IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 2015, 51 (05) : 4121 - 4129
  • [4] Calculation of the magnetic properties of pseudo-ternary R2M14B intermetallic compounds (R = rare earth, M = Fe, Co)
    Eslava, Gabriel Gomez
    Ito, Masaaki
    Yano, Masao
    Dempsey, Nora M.
    Givord, Dominique
    [J]. JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES, 2016, 1 (02): : 158 - 163
  • [5] Low-cost Ce1-xSmx(Fe, Co, Ti)12 alloys for permanent magnets
    Gabay, A. M.
    Martin-Cid, A.
    Barandiaran, J. M.
    Salazar, D.
    Hadjipanayis, G. C.
    [J]. AIP ADVANCES, 2016, 6 (05):
  • [6] Engineering Bulk, Layered, Multicomponent Nanostructures with High Energy Density
    Huang, Guangwei
    Li, Xiaohong
    Lou, Li
    Hua, Yingxin
    Zhu, Guangjun
    Li, Ming
    Zhang, Hai-Tian
    Xiao, Jianwei
    Wen, Bin
    Yue, Ming
    Zhang, Xiangyi
    [J]. SMALL, 2018, 14 (22)
  • [7] Huang M.Q., 1985, PHYS B C, V57, P4106
  • [8] Composition-dependent magnetic properties of melt-spun La or/and Ce substituted nanocomposite NdFeB alloys
    Hussain, M.
    Zhao, L. Z.
    Zhang, C.
    Jiao, D. L.
    Zhong, X. C.
    Liu, Z. W.
    [J]. PHYSICA B-CONDENSED MATTER, 2016, 483 : 69 - 74
  • [9] Chemically Inhomogeneous RE-Fe-B Permanent Magnets with High Figure of Merit: Solution to Global Rare Earth Criticality
    Jin, Jiaying
    Ma, Tianyu
    Zhang, Yujing
    Bai, Guohua
    Yan, Mi
    [J]. SCIENTIFIC REPORTS, 2016, 6
  • [10] Three-Dimensional Self-Assembly of Core/Shell-Like Nanostructures for High-Performance Nanocomposite Permanent Magnets
    Li, Hailing
    Li, Xiaohong
    Guo, Defeng
    Lou, Li
    Li, Wei
    Zhang, Xiangyi
    [J]. NANO LETTERS, 2016, 16 (09) : 5631 - 5638
123