Plasticity size effects in free-standing submicron polycrystalline FCC films subjected to pure tension

H. D. Espinosa*, B. C. Prorok, B. Peng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

333 Scopus citations

Abstract

The stress-strain curves obtained on free standing polycrystalline films subjected to pure tension were analyzed. Elastic modulus was measured in the range of 53-55 GPa for Au, 125-129 GPa for Cu and 65-70 GPa for Al. The yield stress of the membranes was found to increase as membrane width and thickness decreased. It was also found that thickness plays a major role in deformation behavior and fracture of polycrystalline FCC metals.

Original languageEnglish (US)
Pages (from-to)667-689
Number of pages23
JournalJournal of the Mechanics and Physics of Solids
Volume52
Issue number3
DOIs
StatePublished - Mar 2004

Keywords

  • Failure
  • MEMS
  • Plasticity
  • Strengthening
  • Thin films

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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