Giant magnetocaloric effect in melt-spun Ni-Mn-Ga ribbons with magneto-multistructural transformation

被引：117
|
作者：
Li, Zongbin [1 ]
Zhang, Yudong [2 ,3 ]
Sanchez-Valdes, C. F. [4 ]
Sanchez Llamazares, J. L. [4 ]
Esling, Claude [2 ,3 ]
Zhao, Xiang [1 ]
Zuo, Liang [1 ]
机构：
[1] Northeastern Univ, Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Peoples R China
[2] Univ Lorraine, LEM3, CNRS, UMR 7239, F-57045 Metz, France
[3] Univ Lorraine, Lab Excellence Design Alloy Met Low mAss Struct D, F-57045 Metz, France
[4] Inst Potosino Invest Cient & Tecnol AC, San Luis Potosi 78216, Mexico
来源：
APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 04期
关键词：
FIELD-INDUCED STRAIN; HEUSLER ALLOYS; MARTENSITIC PHASE; TRANSITIONS; NIMNGA; REFRIGERATION; CRYSTAL;
D O I：
10.1063/1.4863273
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Magnetic refrigeration based on the magnetocaloric effect (MCE) may provide an energy-efficient and environment-friendly alternative to the conventional gas compression/expansion cooling technology. For potential applications, low-cost and high-performance magnetic refrigerants are in great need. Here, we demonstrate that giant MCE can be achieved in annealed Ni52Mn26Ga22 ribbons with magneto-multistructural transformation. It yields a maximum magnetic entropy change of -30.0 J kg(-1) K-1 at the magnetic field change of 5 T, being almost three times as that of initial melt-spun ribbons and comparable to or even superior to that of polycrystalline bulk alloys. (C) 2014 AIP Publishing LLC.
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页数：5
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