Hydrothermal corrosion of magnesiapartially-stabilized zirconia

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

    Research output: Contribution to journalArticlepeer-review

    25 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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