Synthesis and glass transition temperature measurements in mixed former glasses
A. P. Ahoussou1,2*, A. Kouyate1, D. Diabate1, J. Rogez2, A. Kone1
1Laboratoire de Chimie-Physique, UFR-SSMT, Université de Cocody,
22 BP 582 Abidjan 22, Côte d’Ivoire
2Laboratoire TECSEN-UMR 6122-CNRS Université Paul Cézanne,
13397 Marseille Cedex 20, France
* Corresponding author. E-mail: email@example.com
Received: 01 February 2007; revised version accepted:05 July 2007
A series of alkali borophosphate and borosilicate glasses have been synthesized from melt quenching method. The glass transition temperature, Tg, of these glass systems were investigated by differential scanning calorimetry (DSC). For every system, Tg was found to increase as the B2O3 progressively substitutes for the P2O5 or SiO2 reached a maximum at the most stable structure. An attempt was made to relate the evolution of the glass transition temperature to the connectivity of the glass network.
Keywords: Borophosphate; Borosilicate; Differential Scanning Calorimetry; Glass transition temperature.