Phase transformations and coercivity in rare-earth permanent magnets

被引：17
|
作者：
Menushenkov, VP [1 ]
机构：
[1] Moscow State Inst Steel & Alloys Technol Univ, Moscow 119049, Russia
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2005年 / 290卷
关键词：
SmCo5; Nd2Fe14B sintered magnets; heat treatment; phase transformation; coercivity;
D O I：
10.1016/j.jmmm.2004.11.421
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The hypothetic Sm-Co and Nd-Fe phase diagrams are compared. The phase transformations, which may cause boundaries modification of the SmCo5 and Nd2Fe14B phases, are considered. The phase transformation-induced coercivity mechanism in both Sm-Co and Nd-Fe-B sintered magnets are suggested. It is supposed that formation of coherent epitaxial layers at the surface of grains of the principal phase decreases the number of defect sites for nucleation of reversal magnetization domains and increases the coercive force. © 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：1274 / 1277
页数：4
相关论文
共 50 条
  • [11] COERCIVITY OF PRECIPITATION HARDENED COBALT RARE-EARTH 17-2 PERMANENT-MAGNETS
    FIDLER, J
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1982, 30 (01) : 58 - 70
  • [12] RARE-EARTH COBALT PERMANENT-MAGNETS
    STRNAT, KJ
    STRNAT, RMW
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1991, 100 (1-3) : 38 - 56
  • [13] Are There Any Alternatives for Rare-Earth Permanent Magnets?
    DE Campos, M. F.
    De Castro, J. A.
    ACTA PHYSICA POLONICA A, 2024, 146 (01) : 26 - 33
  • [14] TRENDS IN RARE-EARTH PERMANENT-MAGNETS
    BUSCHOW, KHJ
    IEEE TRANSACTIONS ON MAGNETICS, 1994, 30 (02) : 565 - 570
  • [15] Effect of γ-radiation on rare-earth permanent magnets
    Yang, Shiqing
    Zhang, Wanli
    Gong, Jie
    Peng, Bin
    Wang, Haocai
    Gongneng Cailiao/Journal of Functional Materials, 2000, 31 (03): : 250 - 251
  • [16] Dynamics of suspensions with rare-earth permanent magnets
    Piombo, BAD
    Vigliani, A
    Bonisoli, E
    SMART STRUCTURES AND MATERIALS 2003: DAMPING AND ISOLATION, 2003, 5052 : 106 - 115
  • [17] Thermal magnetization of permanent rare-earth magnets
    Pastushenkov, YG
    Grechishkin, RM
    Shipov, AV
    Ilyashenko, SE
    RUSSIAN METALLURGY, 1996, (04): : 106 - 110
  • [18] Development of nanocomposite rare-earth permanent magnets
    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
    Fenmo Yejin Jishu, 2007, 5 (378-381+392):
  • [19] Micromagnetics of rare-earth efficient permanent magnets
    Fischbacher, Johann
    Kovacs, Alexander
    Gusenbauer, Markus
    Oezelt, Harald
    Exl, Lukas
    Bance, Simon
    Schrefl, Thomas
    JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2018, 51 (19)
  • [20] Mossbauer spectroscopy and rare-earth permanent magnets
    Cadogan, JM
    JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1996, 29 (09) : 2246 - 2254
12345