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* Corresponding author 1 ISCR - Institut des Sciences Chimiques de Rennes

Abstract : The purpose of this paper is to explore the effect of titanium and silver on the characteristic temperatures of 46S6 glass and the excess entropy. The results show that the adding of these metals in the chemical composition does not affect the amorphous character of glasses. The introduction of these elements greatly reduces the melting temperatures of glasses and involves similar variations on the crystallization and glass transition temperatures. These elements also increase the thermal stability of glasses. The excess entropy calculations show a decrease when the content of Ti or Ag increases. Contrary to crystals, synthesized glasses have entropy different to zero at T = 0 K.

Keywords : Titanium Silver Excess entropy Thermal characteristics

Autor: Eric Wers - Hassane Oudadesse - Bertrand Lefeuvre - Bruno Bureau - Odile Merdrignac-Conanec -



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