Superplasticity in GeO2-Nd2O3 doped Y-TZP

M. Nakano, K. Shimura, J. Mimurada, K. Sasaki, Y. Ikuhara, T. Sakuma

    Research output: Contribution to journalConference articlepeer-review

    4 Citations (Scopus)

    Abstract

    The effect of dopant addition on the superplastic flow and tensile elongation in TZP was examined. ZrO2-3mol%Y2O3-1.0mol%GeO2-0.5mol% Nd2O3(TZP-1Ge-1Nd) exhibits higher tensile elongations of more than 600% at 1400°C and lower flow stresses than TZP(ZrO2-3mol% Y2O3). This reduction in flow stress is mainly caused by the codoping of GeO2 with other elements. The peak temperature for the nominal elongation decrease is shown by TZP-1Ge-1Nd, it is suggested that the reason for the maximum elongation with respect to temperature is caused by the reduction in flow stress of GeO2 and that of restricted ductility at high temperatures due to Nd2O3.

    Original languageEnglish
    Pages (from-to)343-348
    Number of pages6
    JournalKey Engineering Materials
    Volume171-174
    Publication statusPublished - 2000 Jan 1
    EventProceedings of the 1999 8th International Conference on Creep and Fracture of Engineering Materials and Structures - Tsukuba, Jpn
    Duration: 1999 Nov 11999 Nov 5

    ASJC Scopus subject areas

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

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