Segregation of yttrium ions to domain boundaries of tetragonal zirconia

H. Ogawa, A. Yasuda, N. Shibata, Yuichi Ikuhara, T. Sakuma

    Research output: Contribution to journalArticle

    9 Citations (Scopus)

    Abstract

    The domain structures in tetragonal zirconia (t-ZrO2formed by the diffusionless cubic-to-tetragonal transformation have been examined in ZrO23mol%Y2O3-12mol%TiO2which has a wide single t-ZrO2field. During annealing in the single-phase field, the domain boundaries with antiphaseboundary-like contrast tend to be facetted with a habit plane close to one of the (111) planes. Transmission electron microscopy-energy-dispersive spectroscopy analysis shows that yttrium ions segregate to the domain boundaries. Since the domain boundaries have a cubic structure, they must be stabilized by the segregation of yttrium ions, which are known to stabilize cubic zirconia.

    Original languageEnglish
    Pages (from-to)199-203
    Number of pages5
    JournalPhilosophical Magazine Letters
    Volume77
    Issue number4
    DOIs
    Publication statusPublished - 1998 Jan 1

    ASJC Scopus subject areas

    • Condensed Matter Physics

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