Dislocation‐Induced Softening of MgO·2.9Al2O3 Single Crystals

Hisayuki Suematsu, Tetsuya Suzuki, Takayoshi Iseki, Tsutomu Mori

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Magnesium aluminate spinel (MgO·2.9Al2O3) single crystals were deformed in compression along the [001] direction at temperatures between 1100° and 1500°C. Dislocations introduced by plastic deformation were observed by transmission electron microscopy. These dislocations lead to plasticity at a temperature where undeformed spinel has no ductility. Further, room‐temperature Vickers hardness decreases after plastic deformation at 1500°C.

Original languageEnglish
Pages (from-to)306-308
Number of pages3
JournalJournal of the American Ceramic Society
Volume72
Issue number2
DOIs
Publication statusPublished - 1989 Feb

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Keywords

  • dislocations
  • plasticity
  • single crystals
  • spinels
  • transmission electron microscopy

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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