以无机盐氯化钙(CaCl_2)作为高温传热蓄热材料,添加金属镁(Mg)作为传热增强剂,采用静态熔融法制备具有高导热性能的Mg/CaCl_2传热蓄热材料。实验结果表明:在熔融状态下,镁条熔化成为小液滴并弥散分布以“金属雾”形式分散在氯化钙熔体中。金属镁的加入几乎没有改变体系的熔点,但是随着镁含量的增大,体系的潜热先减小后增大,导热系数先增大后减小。当镁添加量w(Mg)=0.1时,导热系数增大了41.17%。 CaCl2 is used as high temperature heat transfer material, Mg (Mg) is added as heat transfer enhancer, and Mg / CaCl2 heat transfer material with high thermal conductivity is prepared by static melting method. The experimental results show that in the molten state, the magnesium strip melts into small droplets and disperses in the form of “metal mist” dispersed in the calcium chloride melt. However, with the increase of magnesium content, the latent heat of the system first decreases and then increases, and the thermal conductivity first increases and then decreases. When the amount of magnesium added w (Mg) = 0.1, the thermal conductivity increased by 41.17%.