Correlation between Atomic Size Ratio and Poisson's Ratio in Metallic Glasses
WANG Ai-Kun1 , WANG Shi-Guang1 , XUE Rong-Jie2 , LIU Guo-Cai1 , ZHAO Kun1**
1 Department of Physics, School of Sciences, Hebei University of Science and technology, Shijiazhuang 0500182 School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009
Abstract ：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.
出版日期: 2014-05-26
:
61.43.Dq
(Amorphous semiconductors, metals, and alloys)
62.20.D-
(Elasticity)
81.05.Kf
(Glasses (including metallic glasses))
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2014, Vol. 31 
