A nanoscale mechanism of fatigue in ionic solids

Emily A.A. Jarvis, Emily A. Carter

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

We employ periodic density functional theory to explore the effect of cyclic tensile loading on the behavior of alumina in the threshold region of crack formation. We find evidence for nanoscale fatigue when the alumina lattice is subjected to uniaxial tensile loading and unloading and tensile stresses normal to the applied load. It is possible that such atomic-scale fatigue impacts the durability of ceramics, since the highly ionic bonding requires near-ideal lattice structures in order to maintain cohesive strength.

Original languageEnglish (US)
Pages (from-to)505-509
Number of pages5
JournalNano Letters
Volume6
Issue number3
DOIs
StatePublished - Mar 1 2006

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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