Correlation between Atomic Size Ratio and Poisson＇s Ratio in Metallic Glasses  

作　　者：王爱坤 王世广 薛荣洁 刘国才 赵昆 

机构地区：[1]Department of Physics, School of Sciences, Hebei University of Science and technology, Shijiazhuang 050018 [2]School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009

出　　处：《Chinese Physics Letters》2014年第6期144-146,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 51201057, and the Doctoral Initial Funding of Hebei University of Science and Technology under Grant No QD201252.

摘　　要：We report the correlation between atomic size ratio and Poisson＇s ratio in various metallic glasses. It is found that atomic size ratio has an influence on the atomic packing density of metallic glasses, which would significantly impact the shear modulus rather than bulk modulus. The findings may be helpful for understanding the structural origin of Poisson＇s ratio in metallic glasses, and are instructive for designing tough metallic glasses with large Poisson ＇s ratio.We report the correlation between atomic size ratio and Poisson＇s ratio in various metallic glasses. It is found that atomic size ratio has an influence on the atomic packing density of metallic glasses, which would significantly impact the shear modulus rather than bulk modulus. The findings may be helpful for understanding the structural origin of Poisson＇s ratio in metallic glasses, and are instructive for designing tough metallic glasses with large Poisson ＇s ratio.

分 类 号：TU435[建筑科学—岩土工程] TG139.8[建筑科学—土工工程]