Large elastocaloric effect around room temperature in directionally solidified Co49Fe3V33Ga15 superelastic alloy

被引：19
|
作者：
Liu, Kai [1 ,2 ,3 ,4 ]
Yuan, Yuan [2 ,3 ,4 ]
Ma, Shengcan [2 ,3 ]
Feng, Guofang [5 ]
Wan, Duojian [2 ,3 ,4 ]
Wang, Shuibin [2 ,3 ,4 ]
Chen, Changcai [2 ,3 ]
Luo, Xiaohua [2 ,3 ]
Zhong, Zhenchen [2 ,3 ]
机构：
[1] Henan Univ, Henan Key Lab Photovolta Mat, Kaifeng 475004, Peoples R China
[2] Jiangxi Univ Sci & Technol, Coll Rare Earths, Jiangxi Key Lab Rare Earth Magnet Mat & Devices, Ganzhou 341000, Peoples R China
[3] Jiangxi Univ Sci & Technol, Coll Rare Earths, Ganzhou Key Lab Rare Earth Magnet Funct Mat & Phy, Ganzhou 341000, Peoples R China
[4] Jiangxi Univ Sci & Technol, Fac Mat Met & Chem, Sch Mat Sci & Engn, Ganzhou 341000, Peoples R China
[5] Jiangxi Univ Sci & Technol, Testing & Anal Ctr, Ganzhou 341000, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2021年 / 884卷
基金：
中国国家自然科学基金;
关键词：
Elastocaloric effect; Martensitic transformation; Co49Fe3V33Ga15; alloy; Cycle stability; Directional solidification; MEMORY; TRANSFORMATION; HYSTERESIS; DRIVEN; NITI;
D O I：
10.1016/j.jallcom.2021.161094
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：
Elastocaloric refrigeration based on the elastocaloric effect (eCE) is a promising solid-state replacement to the conventional vapor-compression one due to the environment-friendly and energy-efficient advantages. Here, a Heusler-type <111>-oriented Co49Fe3V33Ga15 superelastic alloy fabricated by the directional solidification method is designed showing large eCE around room temperature. Large adiabatic temperature change of 11.0 K upon fast loading is obtained at 290 K when the uniaxial pressure is perpendicular to the solidification direction. Moreover, the cycle stability of textured alloy is remarkably improved with respect to untextured counterpart. This work may inspire the discovery of newly promising elastocaloric materials for solid-state refrigeration. (C) 2021 Elsevier B.V. All rights reserved.
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页数：7
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