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Journal Articles Journal of Non-Crystalline Solids Year : 1992

Spectroscopic evidence of octahedral iron (III) in soda-lime silicate glasses

Abstract

Optical X-ray and Mössbauer absorption spectroscopies were used to observe the environment of Fe3+ ions in oxidized soda-lime silicate glasses (with 0.3, 3 and 8% Fe2O3), melted at 1450°C. The Mössbauer lineshapes show magnetic relaxation phenomena. Optical absorption spectra are mainly characterized by peaks of ferric iron in fourfold environment and, for the 0.3% Fe2O3 glass, by two bands near 1100 and 1600 cm−1 attributed to the sixfold environment. These two bands are not detected in samples with higher iron concentrations. X-ray absorption spectra of the 3 and 8% Fe2O3 glasses present in a split pre-edge in which fine structure confirms the presence of trivalent iron in the two coordinations.

Dates and versions

hal-04549843 , version 1 (17-04-2024)

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B. Hannoyer, M. Lenglet, J. Dürr, Robert Cortes. Spectroscopic evidence of octahedral iron (III) in soda-lime silicate glasses. Journal of Non-Crystalline Solids, 1992, 151 (3), pp.209-216. ⟨10.1016/0022-3093(92)90031-E⟩. ⟨hal-04549843⟩
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