Influence of extra La and annealing temperature on microstructure and magnetocaloric properties of La-Fe-Co-Si alloys

被引：15

作者：

Zhang, Zhongtian ^{[1
,2
,3
]}

He, Chun ^{[1
,2
]}

Zhang, Mingxiao ^{[1
,2
]}

Liu, Jian ^{[1
,2
]}

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] Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou 215123, Peoples R China

来源：

PHYSICA B-CONDENSED MATTER | 2015年 / 476卷

基金：

中国国家自然科学基金;

关键词：

Non-stoichiometric La-Fe-Co-Si alloys; Magnetic entropy change; Microstructure; METAMAGNETIC TRANSITION; ENTROPY CHANGE;

D O I：

10.1016/j.physb.2015.03.012

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The microstructure, phase constitution and magnetocaloric properties of non-stoichiometric La1.7Fe11Co0.8Si1.2 alloys were investigated. Compared with stoichiometric La(Fe,Co,Si)(13) alloys, a complex phase, including La(Fe,Co,Si)(13) phase, La5Si3 phase, La(Fe,Co)Si phase, alpha-Fe phase and La oxide, can rapidly form upon annealing at 1323 K for 24 h in the present alloy. The resulting alloy exhibits a large magnetic entropy change of 7.5 J kg(-1) K-1 at 271 K in a magnetic field change of 2 T. In addition, the annealed La1.7Fe11Co0.8Si1.2 alloy shows a reversible magnetic phase transition with zero hysteresis. These characteristics indicate that the present La-rich La-Fe-Co-Si compounds have potential for the applications as ambient magnetic refrigeration materials. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：167 / 170

页数：4

共 50 条

[21] Microstructure and magnetocaloric properties of melt-extracted La-Fe-Si microwires
Dong, J. D.
Yan, A. R.
Liu, J.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2014, 357 : 73 - 76
[22] The superior properties of spark plasma sintered La-Fe-Si magnetocaloric alloys
Wu, Yu-Cai
Li, Yuan-Xin
Zhong, Xi-Chun
Liu, Cui-Lan
Huang, Jiao-Hong
Yu, Hong-Ya
Liu, Zhong-Wu
Zhong, Ming-Long
Zhong, Zhen-Chen
Ramanujan, Raju V.
Materials Research Bulletin, 2022, 155
[23] The superior properties of spark plasma sintered La-Fe-Si magnetocaloric alloys
Wu, Yu-Cai
Li, Yuan-Xin
Zhong, Xi -Chun
Liu, Cui-Lan
Huang, Jiao-Hong
Yu, Hong-Ya
Liu, Zhong-Wu
Zhong, Ming -Long
Zhong, Zhen-Chen
V. Ramanujan, Raju
MATERIALS RESEARCH BULLETIN, 2022, 155
[24] A systematic study of the microstructure, phase formation and magnetocaloric properties in off-stoichiometric La-Fe-Si alloys
Liu, Jian
He, Chun
Zhang, M. X.
Yan, A. R.
ACTA MATERIALIA, 2016, 118 : 44 - 53
[25] Fast synthesis and magnetocaloric properties of La(Fe, Co, Si)13 compounds and their hydrides
Paul-Boncour, Valerie
Nakouri, Kalthoum
Patissier, Amaury
Bessais, Lotfi
THERMAG VIII - INTERNATIONAL CONFERENCE ON CALORIC COOLING, 2018, : 33 - 38
[26] COMBINED EFFECT OF CO SUBSTITUTION AND HYDROGENATION ON LA(FE,SI)13 MAGNETOCALORIC PROPERTIES
Patissier, A.
Paul-Boncour, V.
6TH IIR/IIF INTERNATIONAL CONFERENCE ON MAGNETIC REFRIGERATION (THERMAG VI), 2014, : 29 - 30
[27] Anomalous microstructure and magnetocaloric properties in off-stoichiometric La–Fe–Si and its hydride
何春
张明晓
邵艳艳
董京杜
闫阿儒
刘剑
Chinese Physics B, 2015, (07) : 488 - 491
[28] Stability and Magnetocaloric Properties of Sintered La(Fe, Mn, Si)13Hz Alloys
Barcza, A.
Katter, M.
Zellmann, V.
Russek, S.
Jacobs, S.
Zimm, C.
IEEE TRANSACTIONS ON MAGNETICS, 2011, 47 (10) : 3391 - 3394
[29] Isotropic negative thermal expansion in the multiple-phase La-Fe-Co-Si alloys with enhanced strength and ductility
Liu, Yao
Li, Jian
Qian, Yu
Qie, Saiyao
Mi, Songru
Xu, Zhizhi
Xie, Huicai
Song, Xin
Ma, Tianyu
ACTA MATERIALIA, 2024, 275
[30] Corrosion behavior of magnetic refrigeration material La-Fe-Co-Si in distilled water
Zhang, Min
Long, Yi
Ye, Rong-chang
Chang, Yong-qin
JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (08) : 3627 - 3631

← 1 2 3 4 5 →