Coercivity optimization of hot-deformed Nd-Fe-B magnets by addition of B19.23Fe80.77 particles

被引：1
作者：
Liu, Qiaobo [1 ,2 ,3 ]
Chen, Renjie [1 ,2 ]
Tang, Xu [1 ,2 ]
Song, Tingting [1 ,2 ]
Wang, Zexuan [1 ,2 ]
Ju, Jinyun [1 ,2 ]
Yin, Wenzong [1 ,2 ]
Yan, Aru [1 ,2 ]
Xu, Hui [3 ]
机构：
[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Magnet Mat & Devices, Ningbo 315201, Zhejiang, Peoples R China
[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Prov Key Lab Magnet Mat & Applicat Techn, Ningbo 315201, Zhejiang, Peoples R China
[3] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2020年 / 498卷
基金：
中国国家自然科学基金;
关键词：
Hot-deformed Nd-Fe-B magnets; Coercivity; Reversed domains; NUCLEATION CONTROLLED MAGNETS; GRAIN-SIZE DEPENDENCE; MAGNETIZATION REVERSAL; ENHANCEMENT; MICROSTRUCTURE; IMPROVEMENT;
D O I：
10.1016/j.jmmm.2019.166254
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Hot-deformed Nd-Fe-B magnets with and without B-Fe particles are prepared to investigate the effect of B-Fe particles on the magnetic properties. After the addition of 0.5 wt% B-Fe particles, the coercivity of the hot-deformed magnet is increased. It is found that B-Fe particles inhibits the abnormal growth of grains around the melt-spun ribbons' boundaries results in fine grains. Besides, by further annealing, the fine grains have a modification effect on the boundary, which reduces the demagnetization nucleation field, thereby further optimizing the coercivity of the magnet.
引用
收藏
页数：4
相关论文
共 25 条
  • [1] [Anonymous], [No title captured]
  • [2] [Anonymous], [No title captured]
  • [3] ELECTRONIC-STRUCTURES OF FEB, FE2B, AND FE3B COMPOUNDS STUDIED USING 1ST-PRINCIPLES SPIN-POLARIZED CALCULATIONS
    CHING, WY
    XU, YN
    HARMON, BN
    YE, J
    LEUNG, TC
    [J]. PHYSICAL REVIEW B, 1990, 42 (07): : 4460 - 4470
  • [4] Magnetic Materials and Devices for the 21st Century: Stronger, Lighter, and More Energy Efficient
    Gutfleisch, Oliver
    Willard, Matthew A.
    Bruck, Ekkes
    Chen, Christina H.
    Sankar, S. G.
    Liu, J. Ping
    [J]. ADVANCED MATERIALS, 2011, 23 (07) : 821 - 842
  • [5] Simultaneous application of Dy-X (X = F or H) powder doping and dip-coating processes to Nd-Fe-B sintered magnets
    Kim, Tae-Hoon
    Lee, Seong-Rae
    Kim, Hyo-Jun
    Lee, Min-Woo
    Jang, Tae-Suk
    [J]. ACTA MATERIALIA, 2015, 93 : 95 - 104
  • [6] Quasi-periodic layer structure of die-upset NdFeB magnets
    Lai Bin
    Li Yanfeng
    Wang Huijie
    Li Anhua
    Zhu Minggang
    Li Wei
    [J]. JOURNAL OF RARE EARTHS, 2013, 31 (07) : 679 - 684
  • [7] Texture and microstructure improvement of hot-deformed magnets with platelet-like nano h-BN addition
    Li, Ming
    Chen, Renjie
    Jin, Chaoxiang
    Yu, Jinhong
    Tang, Xu
    Chen, Guoxin
    Sun, Jie
    Wang, Zexuan
    Yan, Aru
    [J]. SCRIPTA MATERIALIA, 2018, 152 : 127 - 131
  • [8] Grain size dependence of coercivity of hot-deformed Nd-Fe-B anisotropic magnets
    Liu, J.
    Sepehri-Amin, H.
    Ohkubo, T.
    Hioki, K.
    Hattori, A.
    Schrefl, T.
    Hono, K.
    [J]. ACTA MATERIALIA, 2015, 82 : 336 - 343
  • [9] Microstructure and property evolution of isotropic and anisotropic NdFeB magnets fabricated from nanocrystalline ribbons by spark plasma sintering and hot deformation
    Liu, Z. W.
    Huang, H. Y.
    Gao, X. X.
    Yu, H. Y.
    Zhong, X. C.
    Zhu, J.
    Zeng, D. C.
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2011, 44 (02)
  • [10] Practical Aspects of Modern and Future Permanent Magnets
    McCallum, R. W.
    Lewis, L. H.
    Skomski, R.
    Kramer, M. J.
    Anderson, I. E.
    [J]. ANNUAL REVIEW OF MATERIALS RESEARCH, VOL 44, 2014, 44 : 451 - 477
123