Full elastic constants of Cu6Sn5 intermetallic by Resonant Ultrasound Spectroscopy (RUS) and ab initio calculations

L. Jiang, N. Muthegowda, M. A. Bhatia, A. Migliori, Kiran Solanki, Nikhilesh Chawla

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Cu6Sn5 intermetallic is an important compound formed during reaction between Sn-rich interconnects and copper metallization. The full elastic constants of Cu6Sn5 were quantified experimentally by Resonant Ultrasound Spectroscopy (RUS). The single crystal elastic properties were modeled by density functional theory. A mesoscale polycrystalline model, incorporating the single crystal constants was compared to the experimental results, yielding excellent agreement.

Original languageEnglish (US)
Pages (from-to)26-29
Number of pages4
JournalScripta Materialia
Volume107
DOIs
StatePublished - Oct 1 2015

Keywords

  • Ab initio
  • CuSn
  • Elastic properties
  • Intermetallic
  • Resonant Ultrasound Spectroscopy

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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