Thermodynamic Investigations of Chalcogenide Glasses from the GeSe₂–Sb₂Te₃–CdTe System

Abstract:

Glassy samples from the GeSe₂-Sb₂Te₃-CdTe system are synthesized. The thermal characteristics (glass-transition T_g, crystallization T_cr and melting T_m temperatures) are determined using differential thermal analysis. On the base of the values of these temperatures the glass forming ability of the glasses is determined by the Hruby’s criterion. The main thermodynamic parameters (enthalpy ΔH and entropy ΔS alternation) of the crystallization are calculated. The values of the ΔH and ΔS vary within 21.196 – 98.625 kJ/mol and 33.91 – 170.93 J/(mol.K), respectively. The influence of the composition on the investigated characteristics is analysed.

• Periodical: Solid State Phenomena (Volume 194)
• Pages: 179-182
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.194.179
• Online since: November 2012
• Authors: Lilia Aljihmani, Venceslav Vassilev, Temenuga Hristova-Vasileva
• Keywords: Chalcogenide Glasses, Thermal Characteristic, Thermodynamic Parameters

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