各向异性
兴奋剂
热导率
材料科学
延展性(地球科学)
弹性(物理)
凝聚态物理
弹性模量
工作(物理)
热稳定性
杨氏模量
脆性
热的
热力学
化学
物理
复合材料
光学
蠕动
有机化学
作者
Longke Bao,Zhuangzhuang Kong,Deyi Qu,Yonghua Duan
标识
DOI:10.1016/j.cplett.2020.137833
摘要
In this work, we used the first-principles calculations to explore the effects of rare earth element RE (RE = Sc, Y) doping on the elasticity, sound velocity and thermal conductivity of Mg2Pb. The calculated results revealed that RE (RE = Sc, Y) doping results in Mg2Pb changing from brittleness to ductility. The mechanical anisotropy of Mg2Pb and doping system was explored and the results revealed that the order of anisotropy in elastic modulus is Sc-SMg > Y-I > Sc-I > Mg2Pb > Y-SMg. Furthermore, the anisotropy of the minimum thermal conductivity was discussed by the Clarke's and the Cahill's models.
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