金属间化合物
热导率
材料科学
微观结构
固溶体
热力学
热的
电导率
分析化学(期刊)
冶金
化学
物理化学
物理
复合材料
色谱法
合金
作者
Chang Su,Dejiang Li,Alan A. Luo,Tao Ying,Xiaoqin Zeng
标识
DOI:10.1016/j.jallcom.2018.03.070
摘要
In this study, the room temperature thermal conductivity and microstructure of Mg−Ce, Mg−Sm and Mg−Y binary alloys in as-cast and solution treated conditions were investigated. Quantitative study was conducted on the effect of rare earth elements (in solid solution and intermetallic compounds) on the thermal conductivity of Mg−RE alloys. The reduction in thermal conductivity was determined to be about 123.0 W/(m·K) and 6.5–16.4 W/(m·K), respectively, per 1 at.% RE addition in the form of solid solution or intermetallic compounds with Mg. The thermal conductivities of Mg−RE alloys were fitted using modified Maxwell and EMT models based on the distribution, volume fractions and shape of intermetallic compounds. The modified structural models provide a good fit to the experimental thermal conductivity data.
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