Raman Spectra and Constitution of Binary Tellurite Glasses Containing Typical Network Modifying Cations

Akiyoshi Osaka, Qiu Jianrong, Tatsuo Fujii, Tokuro Nanba, Jun Takada, Yoshinari Miura

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The 720 and 780 cm-1 components of the deconvoluted Raman spectra of glasses in the systems RnO-TeO2 (R=Li, Na, K, Ba, Zn) were attributed to TeO3 groups and the 665 cm-1 band was to TeO4 groups. The theoretical values of the molar ratio TeO3/TeO4 derived from an assumed vitrification reaction were compared with the ratio derived from the intensity ratios of the Raman bands, I(720) /I(665) and I(780)/I(665). It was indicated that [O2/2Te=O] and [O1/2Te(=O)-O]- units were induced by the addition of network modifying oxides in the composition range of lower atomic ratio O/Te. It was proposed that the decrease in the rate of increase of the ratio TeO3/TeO4 in the range of larger O/Te was due to the equilibrium TeO4/2↔[O12/2Te=O] favoring the former unit.

Original languageEnglish
Pages (from-to)473-477
Number of pages5
JournalJournal of the Society of Materials Science, Japan
Volume42
Issue number476
DOIs
Publication statusPublished - 1993

Keywords

  • Constitution
  • Glass
  • Raman spectrum
  • Tellurite

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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