Abstract
The effect of thallium on the phenomena accompanying the thermally induced structural changes in various glasses of the chalcogenide system (As2Se3)1-x Tl x , withx = 0.0 to 0.7, has been investigated using DTA measurements. The crystallization kinetic parameters of the glasses (e.g. crystallization mode,n, rate of reaction,K, and activation energy,E) have been evaluated applying a single-scan technique, and compared with those obtained from the shift in the exothermic peaks (Kissinger model). The kinetic parameter results indicate a discontinuity near thallium concentration of 2.25×1021 atoms cm−3 (x = 0.25) where there is a peak in bothE(3 eV) andn (2.7) and a corresponding dip inK(6.7×10−3).
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Kotkata, M.F., El-Fouly, M.H. & Fayek, S.A. The effect of thallium addition on differential thermal analysis of glassy arsenous selenide. Part 2. J Mater Sci 25, 2917–2924 (1990). https://doi.org/10.1007/BF00584904
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DOI: https://doi.org/10.1007/BF00584904