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同行評審

91 引文 斯高帕斯(Scopus)

摘要

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.

原文English
頁(從 - 到)2885-2893
頁數9
期刊Journal of the American Ceramic Society
81
發行號11
出版狀態Published - 1998 11月 1

All Science Journal Classification (ASJC) codes

  • 陶瓷和複合材料
  • 材料化學

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