Extraordinary magnetocaloric effect of Fe-based bulk glassy rods by combining fluxing treatment and J-quenching technique
Extraordinary magnetocaloric effect of Fe-based bulk glassy rods by combining fluxing treatment and J-quenching technique
复制标题
熔剂处理与 J 淬火技术相结合的铁基大块玻璃棒的非凡磁热效应
DOI：
10.1016/j.jallcom.2016.05.142
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发表时间：
2016
影响因子：
6.2
通讯作者：
Inoue Akihisa
中科院分区：
文献类型：
--
作者：
Yang Weiming;Huo Juntao;Liu Haishun;Li Jiawei;Song Lijian;Li Qiang;Xue Lin;Shen Baolong;Inoue Akihisa
本文研究了Fe_（80）P_（13）C_7大块玻璃棒的反常磁热效应。在1.5 T下的磁熵变（ΔSM）和制冷量（RC）分别可达2.20 J kg− 1 K − 1和125 J kg−1，是目前三元铁基玻璃合金中最大的值。结果表明，随着磁场的增加，磁热效应-温度曲线逐渐变为双峰，Δ SM峰变宽，RC变大。Fe_（80）P_（13）C_（7）的磁热效应可能是由于磁性转变和自旋重取向转变共存的结果。
The extraordinary magnetocaloric effect of Fe80P13C7bulk glassy rods has been studied. The magnetic entropy change (ΔSM) and refrigerant capacity (RC) values under 1.5 T can reach 2.20 J kg−1K−1and 125 J kg−1, respectively, which are the largest values among present ternary Fe-based glassy alloys. It is found that the magnetocaloric effectvstemperature curve gradually changes into two peaks with increasing magnetic fields, leading to a much wider ΔSMpeak and thus a largerRC. This extraordinary magnetocaloric effect in Fe80P13C7may be attributed to the coexistence of magnetic transition and spin reorientation transition.