CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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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** |
1Department of Physics, School of Sciences, Hebei University of Science and technology, Shijiazhuang 050018 2School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009
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Cite this article: |
WANG Ai-Kun, WANG Shi-Guang, XUE Rong-Jie et al 2014 Chin. Phys. Lett. 31 066102 |
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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.
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Published: 26 May 2014
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PACS: |
61.43.Dq
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(Amorphous semiconductors, metals, and alloys)
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62.20.D-
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(Elasticity)
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81.05.Kf
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(Glasses (including metallic glasses))
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