G. R. Strbac, F. Skuban, S. R. Lukic, D. D. Strbac

Influence of antimony on thermal stability of bulk chalcogenides from Sb_xAs_37-xS₄₈I₁₅ system

Journal of Optoelectronics and Advanced Materials 9 (2007) 1690–1693

The paper describes the results of determining the thermomechanical properties of chalcogenide glasses from Sb_xAs_37-xS₄₈I₁₅ system for x=0, 12, 22, 32 and 37 at%. The glass transition temperatures, i.e. the softening temperatures t_g, thermal coefficients of linear expansion a_g and temperatures of the beginning of deformation t_ω were determined by the methods of thermomechanical analysis. The glass transition temperatures were also determined by DSC method. It was found that the glass transition temperatures, temperatures of beginning of deformation and thermal coefficients of linear expansion a_g depend on the percentage of Sb content in the glasses. The glass transition temperatures and temperatures of the beginning of deformation increase with increase of Sb content. The coefficients of linear expansion decrease with the increase of Sb content.

Cited Articles

1. Ohlídal I., Franta D., Frumar M., Jedelský J., Omasta J.,
   Influence of composition, exposure and thermal annealing on optical properties of As–S chalcogenide thin films,
   Chalcogenide Letters 1 (2004) 1–10