Visco-elasticity in alumina ceramics at room temperature

A. T. Yokobori, C. Y. Jian, T. Adachi, T. Yokobori

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)


    The decrease in the fracture strength of alumina ceramics at room temperature has usually been assumed to be caused by the effect of stress corrosion. However, at high temperatures, a viscous deformation will occur due to a glass-like phase which exists in the grain boundary. A study of the relation of the fracture strength of an alumina ceramics smooth specimen at room temperature to the visco-elastic property was performed. Mechanical tests and visco-elastic analysis, has shown that the fracture strength of this kind is controlled by the visco-elasticity.

    Original languageEnglish
    Pages (from-to)3347-3352
    Number of pages6
    JournalJournal of Materials Science
    Issue number12
    Publication statusPublished - 1993 Jun 1

    ASJC Scopus subject areas

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

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