Peculiar effect of rare earth doping on magnetic and magnetocaloric properties in Fe-rich amorphous ribbons
作者:G.F. Wang、Z.R. Zhao、X.F. Zhang、H.L. Li、G.P. Zhao
DOI:10.1016/j.jallcom.2017.11.025
日期:2018.2
stability at room temperature. The ribbons show large magnetocaloric effect in a broad temperature range. Taking a temperature span of 60 K, the values of refrigeration capacity with a field change of 3 T are found to be 119, 87, 120, 115, 81 J/kg for RE = La, Ce, Pr, Nd, Gd, respectively. Universal behavior is observed in the isothermal entropy change curves for each sample with different field changes, and
摘要 我们报告了稀土掺杂对通过熔纺法制备的 Fe82RE4B4Mn4Zr4Nb2 (RE = La、Ce、Pr、Nd、Gd) 带的磁性和磁热性能的影响。带的无定形结构已通过 X 射线衍射技术检查。磁化强度的温度依赖性表明,在稀土掺杂带中居里温度是可变的。差示扫描量热法测量表明带在室温下表现出优异的热稳定性。条带在很宽的温度范围内显示出大的磁热效应。取60 K的温度跨度,发现RE = La、Ce、Pr、Nd、Gd时,场变化为3 T的制冷量值分别为119、87、120、115、81 J/kg .