LaFe11Co0.8Si1.2/Al magnetocaloric composites prepared by hot pressing

被引：37

作者：

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

Ouyang, Yi ^{[1
,2
,3
]}

Zhang, Yifei ^{[1
,2
]}

Liu, Jian ^{[1
,2
,3
,4
]}

机构：

[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, CAS Key Lab Magnet Mat & Devices, Ningbo 315201, Peoples R China

[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Prov Key Lab Magnet Mat & Applicat Techn, Ningbo 315201, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[4] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2020年 / 823卷

基金：

中国国家自然科学基金;

关键词：

Metal-bonded composites; Hot pressing; Magnetocaloric effect; La(Fe; Si)(13)-based compounds; MAGNETIC REFRIGERATION; LA(FE;

D O I：

10.1016/j.jallcom.2020.153846

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The microstructure, mechanical properties, thermal transfer performance, and magnetocaloric effect were investigated in LaFe11Co0.8Si1.2/10 wt% Al composites prepared by hot pressing. The Al particles can deform and form a homogenous matrix during compacting in these composites. Pure Al metal reacts slowly with the LaFe11Co0.8Si1.2 compound at temperatures near 873 K. The introduction of Al particles significantly enhances the mechanical and thermal transfer properties, while slightly degrades the magnetocaloric effect. At room temperature, aforementioned composites show maximum entropy change values of 5.1-5.9 J/kg K under a magnetic change of 2 T, high thermal conductivity of 9.9-17.0 W/m K, and high compressive strength of 106-186 MPa. (C) 2020 Published by Elsevier B.V.

引用

页数：7

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