Misfit dislocation formation at the c/t interphase boundary in Y-TZP

Seiichiro Ii, Hidehiro Yoshida, Koji Matsui, Yuichi Ikuhara

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    4 Citations (Scopus)

    Abstract

    The interphase boundary between the front of a cubic and tetragonal matrix grown in a yttria-stabilized tetragonal zirconia polycrystal was investigated by conventional transmission electron microscopy (CTEM) and high-resolution transmission electron microscopy (HRTEM). Periodic contrasts with a regular spacing were clearly observed on the boundary. CTEM and HRTEM observation revealed that there are misfit dislocations with a Burgers vector of 1/2〈110〉. The yttrium cation distribution across the interphase boundary was measured by energy-dispersive X-ray spectroscopy using a probe size <1 nm. The yttrium cation content changes sharply at the c/t interphase boundary with a transition width of about 10 nm.

    Original languageEnglish
    Pages (from-to)3810-3812
    Number of pages3
    JournalJournal of the American Ceramic Society
    Volume91
    Issue number11
    DOIs
    Publication statusPublished - 2008 Nov 1

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Materials Chemistry

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