LaFeCoSi系列合金室温磁热效应的研究

Direct Measurement of the Adiabatic Temperature on the LaFeCoSi Series of Alloys

选择LaFeSi作为基础,在其中添加过渡族元素Co,配制成LaFe_(11.7-x)Co_xSi_(1.3)B_(0.25)(X=0.6,0.65)系列合金,采用高频磁悬浮感应加热炉进行熔炼,进行热处理,并对样品在1.5T磁场下进行直接测量。结果表明,Co元素的适量添加,对提高居里温度有意义,也可以适当调整材料的绝热温变,对于保持材料的磁热性能有更好的作用。

The LaFe11.7-xCoxSi1.3B0.25（X=0.6,0.65）series of alloys will be formed when adding the transition element of Co into the LaFeSi and then a direct measurement can be done on the samples in the 1.5T magnetic field after the heat treatment in a high frequency magnetic suspension induction heating furnace. The result shows that the appropriate amount of Co can adjust the adiabatic temperature of materials and maintain their magnetocaloric property.