Pre-holed tensile specimens for superplastic Y-TZP ceramics

K. Sasaki, M. Nakano, Y. Ikuhara, T. Sakuma

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)


    A new method was developed to produce tensile specimens with pre-machined holes for superplastic zirconia ceramics. Tensile specimens with effective hole sizes of 450 μm were successfully produced using graphite fibers. Although the size of the defect introduced is relatively large compared to the grain size enough deformation is obtained for qualitative and quantitative analysis for Y-TZP. 3Y-TZP and 3Y-TZP co-doped with germanium and titanium oxide revealed cavity growth coefficients that varied with strain rate and temperature, unlike metals, as a direct consequence of grain growth induced strain hardening.

    Original languageEnglish
    Article number5095063
    Pages (from-to)3307-3313
    Number of pages7
    JournalJournal of Materials Science
    Issue number15
    Publication statusPublished - 2002

    ASJC Scopus subject areas

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

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