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[期刊论文]

Effect of inhibiting CeFe2 on grain boundary diffusion of Ce/La-Ce containing Nd-Fe-B magnets

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Author:

Li, Zhi (Li, Zhi.) | Liu, Weiqiang (Liu, Weiqiang.) (Scholars:刘卫强) | Chen, Hao (Chen, Hao.) | Unfold

Indexed by:

EI Scopus SCIE

Abstract:

Ce and La-Ce containing magnets with the compositions of [(La0.4Ce0.6)(0.3)Nd-0(.7)](31.)5FebalM2.02B0.96 and (Ce0.3Nd0.7)(31.)5FebalM2.02B0.96 were prepared by a grain boundary diffusion (GBD) process with TbHx nanoparticles. After GBD process, the coercivity of Ce containing magnet with CeFe2 phase increases by only 7.2 kOe, while that of La-Ce containing magnet without CeFe2 phase increases by 8.8 kOe. Comparing the two of magnets, some Tb element is consumed in the formation of the (Tb, Ce)Fe-2 phase, therefore reducing the enhancement of the coercivity. It is concluded that inhibiting the CeFe2 phase can promote the diffusion effect of the Tb element in Ce containing magnets. (C) 2019 Elsevier B.V. All rights reserved.

Keyword:

CeFe2 phase Ce/La-Ce containing sintered magnets Microstructure Magnetic properties TbHx nanoparticles diffusion

Author Community:

  • [ 1 ] [Li, Zhi]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Liu, Weiqiang]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Chen, Hao]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Zhang, Zhipeng]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Wu, Dan]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 6 ] [Li, Yuqing]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 7 ] [Yue, Ming]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 8 ] [Pang, Zaisheng]Ganzhou Fortune Elect Co Ltd, Ganzhou 341000, Peoples R China
  • [ 9 ] [Yu, Xi]Ganzhou Fortune Elect Co Ltd, Ganzhou 341000, Peoples R China

Reprint Author's Address:

  • 岳明

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

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Source :

MATERIALS LETTERS

ISSN: 0167-577X

Year: 2020

Volume: 261

3 . 0 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:169

Cited Count:

WoS CC Cited Count: 33

SCOPUS Cited Count: 34

30 Days PV: 5

Online/Total:136/5929278
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