Hydrothermal corrosion of magnesiapartially-stabilized zirconia

Tsugio Sato, T. Endo, M. Shimada, T. Mitsudome, N. Otabe

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Changes in the phase compositions and microstructures of magnesia-partially-stabilized zirconia (Mg-PSZ) were studied in water at 80-300 °C, 1 m HCl solutions at 80-140 °C and 1 m CH3COOH-CH3COONa buffer solutions at pH 3 and 80-140 °C for 10-40 days. The tetragonal to monoclinic phase transformation and the degradation of the fracture strength occurred in water above 200 °C. On the other hand, although no noticeable tetragonal to monoclinic phase transformation proceeded in 1 m HCl solutions and 1 m CH3COOH-CH3-COONa buffer solutions at pH 3 below 140 °C, the fracture strength of Mg-PSZ greatly degraded. The dissolution of Mg2+ ion was observed in water above 200 °C and in 1 m HCl solutions above 80 °C.

Original languageEnglish
Pages (from-to)1346-1350
Number of pages5
JournalJournal of Materials Science
Volume26
Issue number5
DOIs
Publication statusPublished - 1991 Jan 1

ASJC Scopus subject areas

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

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