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First-principles study on the elastic anisotropy of Au-Sn intermetallic compounds

  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Independent elastic constants of single-crystal Au5Sn and AuSn were determined through first-principles calculations to characterize their elastic anisotropy. The ideal elastic moduli and Poisson's ratio of Au 5Sn were determined using the Voigt-Reuss-Hill method and were very close to the range of experimental results; but the ideal Young's modulus of AuSn was much smaller than the experimentally obtained values. This unusual discrepancy in the Young's modulus values of AuSn is probably attributed to its extraordinarily high anisotropy in Young's modulus with a 95 GPa difference between its maximum and minimum values. Au5Sn exhibits relatively low anisotropy in Young's modulus with the maximum-minimum difference of 38 GPa.

Original languageEnglish
Title of host publicationProceedings, 2008 International Conference on Electronic Packaging Technology and High Density Packaging, ICEPT-HDP 2008
DOIs
StatePublished - 2008
Externally publishedYes
Event2008 International Conference on Electronic Packaging Technology and High Density Packaging, ICEPT-HDP 2008 - Pudong, Shanghai, China
Duration: 28 Jul 200831 Jul 2008

Publication series

NameProceedings, 2008 International Conference on Electronic Packaging Technology and High Density Packaging, ICEPT-HDP 2008

Conference

Conference2008 International Conference on Electronic Packaging Technology and High Density Packaging, ICEPT-HDP 2008
Country/TerritoryChina
CityPudong, Shanghai
Period28/07/0831/07/08

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