Electron microscopic observation of rapidly cooled ZrO2-3 mol% Sm2O3 from the melt

M. Hayakawa, Y. Onda, M. Oka, M. Yoshimura, M. Yashima

Research output: Contribution to journalArticle

2 Citations (Scopus)


Electron microscopic observation was made on ZrO2-3 mol % Sm2O3 specimens prepared from the melt using two different cooling rates, namely rapid quenching using a hammer-anvil apparatus and free cooling on a water-cooled copper hearth. The observed microscopic features, such as fully tetragonal grains with parallel twins or herringbone structure, anti-phase boundary contrast in a dark-field image, tweed structure, etc., were found to be quite similar to those observed in similarly prepared ZrO2-3 mol % Y2O3 specimens. It was specifically noted that the tweed structure, which requires atomic diffusion, was not suppressed by the rapid quenching, indicating a very fast growth rate. Trace analysis was also conducted on the tweed structure observed in freely cooled specimens.

Original languageEnglish
Pages (from-to)6066-6069
Number of pages4
JournalJournal of Materials Science
Issue number22
Publication statusPublished - 1993 Jan 1

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Electron microscopic observation of rapidly cooled ZrO<sub>2</sub>-3 mol% Sm<sub>2</sub>O<sub>3</sub> from the melt'. Together they form a unique fingerprint.

  • Cite this