期刊
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
卷 210, 期 12, 页码 2762-2766出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssa.201330154
关键词
magnetic shape-memory alloys; phase transformation; martensitic transformation temperature; magnetic entropy change
资金
- Natural Science Foundation of Shanxi Province of China [2010011032-1]
- Specialized Research Fund for Doctoral Scientific Research of Ministry of Education of China [20101415110003]
- Doctoral Scientific Research Foundation of Taiyuan University of Science and Technology [20122036]
- Postdoctoral Research Station Foundation of Taiyuan University of Science and Technology, Research Project
- Shanxi Scholarship Council of China [2013-098]
- National Natural Science Foundation of China [61178067]
A series of Mn48-xTixNi42Sn10 (x=1, 2, 3, and 4) ferromagnetic shape-memory alloys were prepared by the arc melting method. The results show that the martensitic transition (MT) temperatures and Curie temperature decrease clearly with Ti addition, but no obvious phase transition from weak-magnetic martensite to a ferromagnetic austenite can be observed for x=4. Under an applied magnetic field of 30 kOe, the peak values of magnetic entropy changes are 26.6, 36.8, and 15.1J/kgK, for x=1, 2, and 3, respectively. The reasons for the large magnetic entropy change and adjustable MT temperatures are discussed in this paper. (C) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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