Non-isothermal kinetic analysis on the crystallization process in Se–S glassy system

In the present study samples of Se100 − xSx has been prepared by conventional melt-quenching technique in the composition range 5 ≤ x ≤ 20 (at.%). The crystallization process in glassy system was investigated under non-isothermal condition using differential scanning calorimetry (DSC) at 5, 10, 15, and 20 °C/min heating rates (ϕ). The DSC traces have been analyzed in terms of activation energy (ΔEc) and Avrami exponent (n) using different models viz. the Starink, Flynn–Wall–Ozawa, the Friedman–Ozawa, Kissinger–Akahira–Sunose equations. The composition dependence on the glass transition temperature (Tg), the crystallization temperature (Tc), and the peak temperatures (Tp) of the samples were also determined. The analysis shows that the incorporation of sulfur content has a strong influence on the crystallization mechanism for the Se–S glassy system.