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作者:

Xu, L. (Xu, L..) | Zhao, J. L. (Zhao, J. L..) | Zhang, D. K. (Zhang, D. K..) | Zhang, H. G. (Zhang, H. G..) (学者:张红光) | Yue, M. (Yue, M..) (学者:岳明)

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EI Scopus SCIE

摘要:

In this paper, the magnetic properties and the magnetic entropy of LaFe11.5Al1.5Bx (x = 0, 0.1, 0.2 and 0.3) and LaFe11.5Al1.5Cy (y = 0.1, 0.2, 0.3, 0.4 and 0.5) compounds have been studied. All the compounds crystallize in the cubic NaZn13-type structure. By introducing interstitial atoms B or C, the magnetic ground state is changed from the antiferromagnetic (AFM) to the ferromagnetic (FM) state. And, the Curie temperature (TC) significantly enhanced with increasing the content of interstitial atoms (B or C). Compared with the obvious variation in Curie temperature, the saturation magnetization (MS) increased slightly. It is worth noting that the magnetic transition changed from weak first-order to second-order with increasing boron or carbon. All the LaFe11.5Al1.5 borides and carbides exhibit a considerable magnetic entropy change, the maximum magnetic entropy change (-Delta S-M) reach to 9.6 J/kg K for LaFe11.5Al1.5B0.1 and 10.8 J/kg K for LaFe11.5Al1.5C0.2 under a magnetic field change of 0-5 T. (C) 2015 Elsevier B.V. All rights reserved.

关键词:

Interstitial atom Magnetocaloric effect Phase transition La(Fe,Al)(13) compounds

作者机构:

  • [ 1 ] [Xu, L.]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Zhang, D. K.]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Zhang, H. G.]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Yue, M.]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Xu, L.]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
  • [ 6 ] [Zhao, J. L.]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China

通讯作者信息:

  • [Zhao, J. L.]Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China

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来源 :

JOURNAL OF ALLOYS AND COMPOUNDS

ISSN: 0925-8388

年份: 2015

卷: 651

页码: 8-11

6 . 2 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:319

JCR分区:1

中科院分区:1

被引次数:

WoS核心集被引频次: 4

SCOPUS被引频次: 4

ESI高被引论文在榜: 0 展开所有

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