Glass transition and crystallization kinetics of Inx(Se0.75Te0.25)100−x chalcogenide glasses

The results of differential scanning calorimetry (DSC) under non-isothermal conditions of the chalcogenide Inx(Se0.75Te0.25)100−x (where 0 ≤ x ≤ 10 at.%) glasses are reported and discussed. The dependence of the characteristic temperatures “glass transition temperature (Tg), the crystallization onset temperature (Tc) and the crystallization peak temperature (Tp) on the heating rate (α) utilized in the determination of the activation energy for the glass transition (Eg), the activation energy for crystallization (Ec) and the Avrami's exponent (n). The composition dependence of the Tg, Eg, and Ec were discussed in terms of the chemical bond approach, the average heats of atomization (Hs) and the cohesive energy (CE). The diffractogram of the transformed material shows the presence of some crystallites of Se–Te and In–Se in the residual amorphous matrix.