Tensile transformation-mismatch plasticity of bismuth sesquioxide

David C. Dunand, Jeffrey L. Grabowski

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

This study reports on experiments where bismuth sesquioxide (Bi2O3) was cycled between its high-temperature δ-phase and one or more of its low-temperature phases (α-, β-, or γ-Bi2O3) while being subjected to uniaxial tensile stresses in the range of 0.11-0.55 MPa. Reproducible strain increments of 0.4%-3.9% have been measured after each thermal cycle, and total tensile fracture strains of 10%-28% have been obtained using a combination of isothermal creep and transformation-mismatch plasticity. The strain due to transformation mismatch plasticity has been determined by two different methods and is proportional to the applied stress, which is quantitatively consistent with theoretical predictions for transformation superplasticity.

Original languageEnglish (US)
Pages (from-to)2521-2528
Number of pages8
JournalJournal of the American Ceramic Society
Volume83
Issue number10
DOIs
StatePublished - 2000

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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