Giant magnetocaloric effect in melt-spun Ni-Mn-Ga ribbons with magneto-multistructural transformation - Université de Lorraine Access content directly
Journal Articles Applied Physics Letters Year : 2014

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

Abstract

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.
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Dates and versions

hal-01503882 , version 1 (07-04-2017)

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Zongbin Li, Yudong Zhang, C. F. Sanchez-Valdes, J. L. Sanchez Llamazares, Claude Esling, et al.. Giant magnetocaloric effect in melt-spun Ni-Mn-Ga ribbons with magneto-multistructural transformation. Applied Physics Letters, 2014, 104 (4), ⟨10.1063/1.4863273⟩. ⟨hal-01503882⟩
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