MOESSBAUER ANALYSIS OF THE VALENCE AND COORDINATION OF IRON CATIONS IN CiO2-Na2O-CaO GLASSES.

R. A. Levy, C. H.P. Lupis, P. A. Flinn

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Abstract

The ratio of ferrous to ferric cations and the distribution of ferric cations among octahedral and tetrahedral sites in SiO//2-Na//2O-CaO glasses have been studied by Moessbauer spectroscopy. The results indicate that the ratio of ferrous to ferric cations increases with decreasing basicity, higher temperatures, and gradual replacement of Na//2O by CaO. Contrary to previous analyses, it is found that the distribution of ferric cations among octahedral and tetrahedral sites is not significantly affected by the replacement of Na//2O by CaO.

Original languageEnglish (US)
Pages (from-to)94-103
Number of pages10
JournalPhysics and Chemistry of Glasses
Volume17
Issue number4
StatePublished - Jan 1 1976
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Physical and Theoretical Chemistry

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