Iso-conversional approach for study of glass transition and crystallization kinetics of ternary glassy Se98−xAg2Inx (x = 0, 2, 4, 6) system

The glass transition and crystallization kinetics of Se98−xAg2Inx (x = 0, 2, 4, 6) glasses have been studied under non-isothermal condition using differential scanning calorimetry (DSC). Using model free approach [Kissinger-Akahira-Sunose (KAS), Flynn-Wall-Ozawa (FWO), Tang and Straink], the activation energy of glass transition, ΔEαg and crystallization kinetics, ΔEαc have been plotted as a function of extent of conversion, α. The kinetic parameters such as the activation energy (E), Avrami exponent (n), and rate of crystallization (K) have been determined using Kolmogorov-Johnson-Mehl-Avrami (KJMA) model. Glassy nature of as prepared samples was confirmed by XRD (X-ray diffraction), surface morphology and diffraction pattern by SEM and TEM, respectively.