Sol-gel synthesis of a new composition of bioactive glass in the quaternary system SiO2-CaO-Na2O-P2O5 - Université de Rennes Accéder directement au contenu
Article Dans Une Revue Journal of Non-Crystalline Solids Année : 2011

Sol-gel synthesis of a new composition of bioactive glass in the quaternary system SiO2-CaO-Na2O-P2O5

Résumé

New sol-gel exptl. conditions were tested to prep. a new SiO2-based bioactive glass with high Na2O content. The aim of this work is to investigate the real influence of the synthesis route (sol-gel vs. melting) on the glass intrinsic properties and then, later, on the glass behavior and particularly on bioactivity. The obtained glass and its melt derived counterpart were characterized from structural and morphol. (porosity, sp. surface area) point of view. It could be noticed that the synthesis mode has no significant influence on glass structure. Conversely, the synthesis mode greatly influences the glass texture. The sol-gel derived glass exhibits a greatly higher sp. surface area and pore vol. than melt derived glass. This parameter may be a key factor of glass bioactivity.

Dates et versions

hal-00824189 , version 1 (21-05-2013)

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Anita Lucas-Girot, Fatima-Zohra Mezahi, M. Mami, Hassane Oudadesse, Abdelhamid Harabi, et al.. Sol-gel synthesis of a new composition of bioactive glass in the quaternary system SiO2-CaO-Na2O-P2O5. Journal of Non-Crystalline Solids, 2011, 357 (18), pp.3322-3327. ⟨10.1016/j.jnoncrysol.2011.06.002⟩. ⟨hal-00824189⟩
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