Vibrational spectra of Ca 3SiO 5: Ultraviolet laser Raman spectroscopy at high temperatures

Hirotaka Fujimori, Hiroshi Komatsu, Koji Ioku, Seishi Goto, Tomoaki Watanabe

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3 Citations (Scopus)

Abstract

The Raman spectra of Ca 3SiO 5 have been successfully obtained at temperatures up to 1353 K by a continuous-wave ultraviolet Raman spectroscopic system. The Raman spectra do not change significantly with an increase in temperature, despite triclinic (T) → monoclinic (M) → rhombohedral (R) transitions. The present result is described in terms of the parameter related to temperature variation at constant pressure, defined in a manner similar to the Gruneisen parameter. Raman bands located above 350 cm -1 show smaller values of the parameter than lower frequency modes, suggesting that these higher frequency modes are assigned to SiO 4 internal modes.

Original languageEnglish
Pages (from-to)1995-1998
Number of pages4
JournalJournal of the American Ceramic Society
Volume88
Issue number7
DOIs
Publication statusPublished - 2005 Jul 1
Externally publishedYes

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ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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