Large refrigeration capacity in a Ni42Co8Mn37.7In12.3 magnetocaloric alloy

被引：23
作者：
Cheng, Fei [1 ,2 ]
Gao, Lumei [1 ,2 ,3 ]
Wang, Yu [1 ,2 ]
Wang, Jiaotong [1 ,2 ]
Liao, Xiaoqi [1 ,2 ]
Yang, Sen [1 ,2 ]
机构：
[1] Xi An Jiao Tong Univ, MOE Key Lab Nonequilibrium Synth & Modulat Conden, Xian 710049, Shaanxi, Peoples R China
[2] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China
[3] Xi An Jiao Tong Univ, Instrument Anal Ctr, Xian 710049, Shaanxi, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2019年 / 478卷
基金：
中国国家自然科学基金;
关键词：
Magnetocaloric effect; Shape memory alloy; Martensitic transformation; Entropy change; Refrigeration capacity; INDUCED PHASE-TRANSFORMATION; INDUCED SHAPE RECOVERY; ROOM-TEMPERATURE; NEGATIVE MAGNETORESISTANCE; MAGNETIC-PROPERTIES; CO;
D O I：
10.1016/j.jmmm.2019.01.101
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Ni-Mn-Z (Z = Sn, In, Sb, Ga) based alloys are considered as promising magnetic refrigeration materials due to its giant inverse magnetocaloric effect, simple preparation and low cost. In this work, the transformation behavior and magnetocaloric effect of Ni42Co8Mn37.7In12.3 polycrystalline alloy has been investigated. It is found that both the temperature-induced martensitic transformation and its associated field induced metamagnetic transition occur near the room temperature. The large magnetic entropy change Delta S-M of 14.30 J.K-1.kg(-1) and large refrigeration capacity RC of 549 J.K-1 are achieved under 6 T within the broad ambient working temperature range of 248-295 K. Its magnetocaloric performance is outstanding among a great number of reported Ni-Mn-Z based alloys.
引用
收藏
页码：234 / 238
页数：5
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