journal article·2017-04-01Open access

Combined caloric effects in a multiferroic Ni–Mn–Ga alloy with broad refrigeration temperature region

Yong Hu, Zongbin Li, Bo Yang, Suxin Qian, Weimin Gan, Yuanyuan Gong, Yang Li, Dewei Zhao, Jian Liu, Xiang Zhao, Liang Zuo, Dunhui Wang, Youwei Du

APL Materials· Volume 5· Issue 4

Abstract

Solid-state refrigeration based on the caloric effects is promising to replace the traditional vapor-compressing refrigeration technology due to environmental protection and high efficiency. However, the narrow working temperature region has hindered the application of these refrigeration technologies. In this paper, we propose a method of combined caloric, through which a broad refrigeration region can be realized in a multiferroic alloy, Ni–Mn–Ga, by combining its elastocaloric and magnetocaloric effects. Moreover, the materials’ efficiency of elastocaloric effect has been greatly improved in our sample. These results illuminate a promising way to use multiferroic alloys for refrigeration with a broad refrigeration temperature region.
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Research context

OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Shape Memory Alloy Transformations · Multiferroics and related materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Nanjing University 1 National Laboratory of Solid State Microstructures and Jiangsu Key Laboratory for Nano Technology, , Nanjing 210093, China

Northeastern University 2 Key Laboratory for Anisotropy and Texture of Materials, , Shenyang 110819, China

Xi’an Jiaotong University 3 Department of Refrigeration and Cryogenic Engineering, , Xi’an 710049, China

Helmholtz-Zentrum Geesthacht (HZG) Outstation at FRM II 4 German Engineering Materials Science Centre (GEMS), , D-85748 Garching, Germany

Nanjing University of Science and Technology 5 Jiangsu Key Laboratory of Advanced Micro and Nano Materials and Technology, , Nanjing 210094, China

Chinese Academy of Sciences 6 Ningbo Institute of Material Technology and Engineering, , Ningbo 315201, China

Funding

National Natural Science Foundation of China

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