Microstructure and surface segregation of 3 mol% y2O 3-doped ZrO2 particles

Seiichiro Ii, Hidehiro Yoshida, Koji Matsui, Nobukatsu Ohmichi, Yuichi Ikuhara

    Research output: Contribution to journalArticlepeer-review

    13 Citations (Scopus)

    Abstract

    Microstructure of a commercial 3 mol% yttria-doped zirconia nano-particulate powder was observed by transmission electron microscopy, and the distribution of yttrium cation was investigated by energy-dispersive X-ray spectroscopy (EDS) with a probe size less than 1 nm. The cross-sectional high-resolution transmission electron microscopy observations revealed that there are two kinds of particles, consisting of single-phase tetragonal and two phases comprising tetragonal and monoclinic. EDS analysis revealed that yttrium cations segregate to the surface of the tetragonal particle. The origin of tetragonal to monoclinic transformation was considered to be due to external stress during the powder milling process.

    Original languageEnglish
    Pages (from-to)2952-2955
    Number of pages4
    JournalJournal of the American Ceramic Society
    Volume89
    Issue number9
    DOIs
    Publication statusPublished - 2006 Sep 1

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Materials Chemistry

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