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Micro-Raman studies on 50 keV electron irradiated silicate glass

Abstract : A potassium-lime-silicate glass was irradiated with a 50 keV electron beam. The impact of irradiation conditions on the glass structure (beam diameter, current, and irradiation time) was studied by Micro-Raman spectroscopy. For irradiation time less than the incubation time (around 360 s), structural evolutions are attributed to a glass densification. Irradiations longer than the incubation period led to a precipitation of supposed calcium enriched phase and formation of a more depolymerized silicate phase. A non-homogeneous irradiated glass structure was observed with the existence of an area (along the electron beam border) composed by a mixture of a concentrated Ca phase diluted into the amorphous silicate phase. (c) 2006 Elsevier B.V. All rights reserved.
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Submitted on : Wednesday, November 26, 2014 - 11:45:09 AM
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N. Ollier, O. Gedeon. Micro-Raman studies on 50 keV electron irradiated silicate glass. Journal of Non-Crystalline Solids, Elsevier, 2006, 352 (50-51), pp.5337-5343. ⟨10.1016/j.jnoncrysol.2006.08.026⟩. ⟨hal-01087516⟩



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