co50fe 2.5V 31.5Ga 16四元Heusler合金中顺磁马氏体相变的大气压效应

EngRN: Metals & Alloys (Topic) Pub Date : 2019-07-08 DOI:10.2139/ssrn.3416327

Hongwei Liu, Zhe Li, Yuanlei Zhang, Zhenting Ni, K. Xu, Yongsheng Liu

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引用次数: 2

摘要

本文报道了Co50Fe2.5V31.5Ga16四元Heusler合金在室温附近的顺磁马氏体相变(MT)具有良好的双向形状记忆效应。与这些独特行为相关的是，在较低的静水压力下，所研究的合金首次实现了大的气压效应(BCE)。这些有趣的发现表明，Co-V-Ga体系可能成为基于BCE的固态制冷技术的一个新的有前途的候选体系。

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A Large Barocaloric Effect Associated with Paramagnetic Martensitic Transformation in Co 50Fe 2.5V 31.5Ga 16 Quaternary Heusler Alloy

This work reported a good two way shape memory effect associated with paramagnetic martensitic transformation (MT) in Co₅₀Fe_2.5V_31.5Ga₁₆ quaternary Heusler alloy near room temperature.Associated with these unique behaviors, a large barocaloric effect (BCE) has been firstly realized in the studied alloy under a relatively low hydrostatic pressure. These interesting findings indicate that the Co-V-Ga system probably become a new promising candidate for application in solid-state refrigeration techniques based on BCE.

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EngRN: Metals & Alloys (Topic)

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