Critical size of the phase transition from cubic to tetragonal in pure zirconia nanoparticles

S. Tsunekawa, S. Ito, Y. Kawazoe, J. T. Wang

Research output: Contribution to journalArticle

85 Citations (Scopus)

Abstract

Pure (unstabilized) zirconia nanoparticles in the fluorite-type cubic phase are observed by transmission electron microscopy. Microscopic observations at a pressure of 5 × 10-5 Pa suggest that the phase transition from the cubic to tetragonal phase arises for particles near 2 nm in diameter. First principles computer simulations of large zirconia clusters show that the critical size of the transition could occur for a diameter of 2.05 ± 0.15 nm, which is in good agreement with the experimental value.

Original languageEnglish
Pages (from-to)871-875
Number of pages5
JournalNano Letters
Volume3
Issue number7
DOIs
Publication statusPublished - 2003 Jul 1

ASJC Scopus subject areas

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

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