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HomeMaterials Science ForumMaterials Science Forum Vol. 913Phase Transition Behavior and Magnetocaloric...

Phase Transition Behavior and Magnetocaloric Effect in a Heusler Ni₅₀Mn₃₇Sn₁₃ Unidirectional Crystal

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Abstract:

A unidireon heating, followed with a ferromagnetic- paramagnetic transition in austenite for the produced unidirectional crystal. Under a magnetic field change of 3 T, the total effective refrigeration capacity was strikingly enhanced up to 125 J/kg, nearly 64% higher than that of polycrystalline master alloy ctional crystal of Heusler Ni₅₀Mn₃₇Sn₁₃ material was produced using a modified high-pressure optical zone-melting furnace. A structural transformation between weak-magnetization martensite and ferromagnetic austenite occurred first up(76 J/kg). The modified high-pressure optical zone-melting technique demonstrated high potentials for the fabrication of super-performance Heusler Ni-Mn-based magnetocaloric materials.

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Periodical:

Materials Science Forum (Volume 913)

Pages:

759-764

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.913.759

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Online since:

February 2018

Authors:

Yue Fang, Yu Ting Dai, Zhi Shuai Xu, Hong Xing Zheng*

Keywords:

Heusler Ni-Mn-Sn, Magnetocaloric Effect, Structural Transformation, Unidirectional Crystal

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© 2018 Trans Tech Publications Ltd. All Rights Reserved

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