Structural changes of scandia-doped zirconia solid solutions: Rietveld analysis and Raman scattering

Hirotaka Fujimori, Masatomo Yashima, Masato Kakihana, Masahiro Yoshimura

    研究成果: Article査読

    91 被引用数 (Scopus)

    抄録

    Powder X-ray diffractometry (XRD) and Raman scattering measurements were used to study the structural changes of compositionally homogeneous metastable ZrO2 solid solutions induced by ScO1.5 doping. The crystal structures of monoclinic, tetragonal, cubic, and rhombohedral (Sc2Zr7O17, β-phase) solid-solution phases have been refined by using the Rietveld analysis of the XRD data at room temperature of arc-melted ZrO2-XScO1.5 (X = 0, 2, . . . , 20, and 22 mol%) samples. The results can be interpreted as indicating that the structures of the monoclinic and tetragonal phases approach those of the tetragonal and cubic phases, respectively, by ScO1.5 doping. Raman scattering, as well as XRD, was useful to investigate the phase assemblage. Moreover, we could obtain Raman spectra of the β-phase probably for the first time.

    本文言語English
    ページ(範囲)2885-2893
    ページ数9
    ジャーナルJournal of the American Ceramic Society
    81
    11
    DOI
    出版ステータスPublished - 1998 11月

    ASJC Scopus subject areas

    • セラミックおよび複合材料
    • 材料化学

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