Magnetostructural transformation and magnetocaloric effect in Mn-Ni-Sn melt-spun ribbons
Magnetostructural transformation and magnetocaloric effect in Mn-Ni-Sn melt-spun ribbons
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Mn-Ni-Sn熔纺薄带的磁结构转变和磁热效应
DOI：
10.1140/epjp/i2017-11316-1
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发表时间：
2017
影响因子：
3.4
通讯作者：
Liang Zuo
中科院分区：
文献类型：
--
作者：
Yiwen Jiang;Zongbin Li;Zhenzhuang Li;Yiqiao Yang;Bo Yang;Yudong Zhang;Claude Esling;Xiang Zhao;Liang Zuo
研究了Mn50Ni50-xSnx快淬薄带的马氏体相变和磁性能。结果表明，随着锡含量的增加，薄带中的马氏体相变温度几乎呈线性下降，平均速率为70K/at%。在Mn50Ni40Sn10薄带中，由于强的磁-结构耦合作用，实现了从弱磁马氏体到铁磁奥氏体场致马氏体逆相变。在5T的磁场变化下，Mn50Ni40Sn10薄带的大磁熵为13.7J kg-1K-1，有效制冷量为72.9J kg-1。
The martensitic transformation and magnetic properties of Mn50Ni50-xSnxmelt-spun ribbons were investigated. It is shown that the increase of Sn content results in a nearly linear decrease of martensitic transformation temperatures in the ribbons, with an average rate of 70 K per at % of Sn. In Mn50Ni40Sn10ribbons, the field-induced reverse martensitic transformation from a weak magnetic martensite to a ferromagnetic austenite was realized due to the strong magnetostructural coupling. Under a field change of 5T, the large magnetic entropy change of 13.7 J kg-1K-1and the effective refrigerant capacity of 72.9 Jkg-1were obtained in Mn50Ni40Sn10ribbons.