Raman spectra of gel-prepared titania-silica glasses

Diane S. Knight, Carlo G. Pantano, William B. White

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29 Scopus citations


Ultralow expansion TiO2SiO2 glasses can be prepared by a variety of sol-gel routes. The Raman spectra are similar to the spectra of glasses prepared by high-temperature melt and vapor deposition techniques. The Raman spectra resemble the spectra of silica glass with the addition of a polarized band at 1106 cm-1and a depolarized band at 933 cm-1which varied in intensity with titanium concentration. The spectra are explained in terms of titanium-rich clusters within a matrix of silica-rich glass. The onset of crystallization in heat-treated glasses is seen in the Raman spectra as a series of sharp bands characteristic of the anatase form of TiO2.

Original languageEnglish (US)
Pages (from-to)156-160
Number of pages5
JournalMaterials Letters
Issue number5
StatePublished - Jun 1989

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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