Large refrigeration capacity in a Ni48Co1Mn37In14 polycrystalline alloy with low thermal hysteresis

被引：32

作者：

Wang, Limin ^{[1
]}

Li, Zongbin ^{[1
]}

Yang, Jiajing ^{[1
]}

Yang, Bo ^{[2
]}

Zhao, Xiang ^{[1
]}

Zuo, Liang ^{[1
]}

机构：

[1] Northeastern Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Peoples R China

[2] Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China

来源：

INTERMETALLICS | 2020年 / 125卷

基金：

中国国家自然科学基金;

关键词：

Ni-Co-Mn-In alloys; Magnetostructural transformation; Magnetocaloric effect; Magnetic entropy change; Refrigeration capacity; MAGNETIC ENTROPY CHANGE; SHAPE-MEMORY ALLOYS; EFFECT DRIVEN; GIANT; TRANSFORMATION; MARTENSITE; TRANSITION;

D O I：

10.1016/j.intermet.2020.106888

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：

For Ni-Mn-In based alloys, simultaneously achieving large magnetic field-induced transformation temperature shift and low thermal hysteresis is of vital significance to obtain significant magnetocaloric properties. In this work, we employ low content Co doping to tune the magnetostructural transformation parameters and demonstrate large inverse magnetocaloric effect in a Ni48Co1Mn37In14 alloy. It is shown that 1% Co doping confers a strong magnetic field dependence of transformation temperature, i.e., 7.2 KT-1, giving rise to a wide refrigeration temperature window of 34 K under the magnetic field change of 5 T. Together with relatively low thermal hysteresis, i.e., similar to 8 K, giant effective refrigeration capacity up to 284 Jkg(-1) is achieved under the magnetic field change of 5T. The present work is expected to offer some instructions for the design of Ni-Mn-based alloys with excellent magnetocaloric properties(.)

引用

页数：6

共 55 条

[1] Large inverse magnetocaloric effect in Ni45Co5Mn37.5In12.5 single crystal above 300 K [J].