Raman spectral characterization of existing phases in the Y2O3-Nb2O5 system

Masatomo Yashima; Jin Ho Lee; Masato Kakihana; Masahiro Yoshimura

doi:10.1016/S0022-3697(97)00098-X

Raman spectral characterization of existing phases in the Y₂O₃-Nb₂O₅ system

Masatomo Yashima, Jin Ho Lee, Masato Kakihana, Masahiro Yoshimura

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

38 Citations (Scopus)

Abstract

Existing phases in the Y₂O₃-Nb₂O₅ system were investigated by Raman spectroscopy as well as X-ray powder diffraction. The present study reveals that Raman spectroscopy can also identify the existing phases of C-type Y₂O₃ (C) phase, fluorite structured solid solution (F), monoclinic YNbO₄ compound (M), and their two-phase mixtures as well as X-ray diffraction. Raman spectra of defect-fluorite yttrium niobium oxide solid solutions Y_100-xNb_xO_150+x(20≤x≤25) exhibit broad bands in contrast to the ordered C and M phases. This is probably the first characterization of the Raman spectrum of the fiuorite-structured Y_100-xNb_xO_150+x.

Original language	English
Pages (from-to)	1593-1597
Number of pages	5
Journal	Journal of Physics and Chemistry of Solids
Volume	58
Issue number	10
DOIs	https://doi.org/10.1016/S0022-3697(97)00098-X
Publication status	Published - 1997 Oct

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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title = "Raman spectral characterization of existing phases in the Y2O3-Nb2O5 system",

abstract = "Existing phases in the Y2O3-Nb2O5 system were investigated by Raman spectroscopy as well as X-ray powder diffraction. The present study reveals that Raman spectroscopy can also identify the existing phases of C-type Y2O3 (C) phase, fluorite structured solid solution (F), monoclinic YNbO4 compound (M), and their two-phase mixtures as well as X-ray diffraction. Raman spectra of defect-fluorite yttrium niobium oxide solid solutions Y100-xNbxO150+x(20≤x≤25) exhibit broad bands in contrast to the ordered C and M phases. This is probably the first characterization of the Raman spectrum of the fiuorite-structured Y100-xNbxO150+x.",

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AU - Kakihana, Masato

AU - Yoshimura, Masahiro

PY - 1997/10

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N2 - Existing phases in the Y2O3-Nb2O5 system were investigated by Raman spectroscopy as well as X-ray powder diffraction. The present study reveals that Raman spectroscopy can also identify the existing phases of C-type Y2O3 (C) phase, fluorite structured solid solution (F), monoclinic YNbO4 compound (M), and their two-phase mixtures as well as X-ray diffraction. Raman spectra of defect-fluorite yttrium niobium oxide solid solutions Y100-xNbxO150+x(20≤x≤25) exhibit broad bands in contrast to the ordered C and M phases. This is probably the first characterization of the Raman spectrum of the fiuorite-structured Y100-xNbxO150+x.

AB - Existing phases in the Y2O3-Nb2O5 system were investigated by Raman spectroscopy as well as X-ray powder diffraction. The present study reveals that Raman spectroscopy can also identify the existing phases of C-type Y2O3 (C) phase, fluorite structured solid solution (F), monoclinic YNbO4 compound (M), and their two-phase mixtures as well as X-ray diffraction. Raman spectra of defect-fluorite yttrium niobium oxide solid solutions Y100-xNbxO150+x(20≤x≤25) exhibit broad bands in contrast to the ordered C and M phases. This is probably the first characterization of the Raman spectrum of the fiuorite-structured Y100-xNbxO150+x.

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Raman spectral characterization of existing phases in the Y₂O₃-Nb₂O₅ system

Abstract

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