Alloys of Se 80-x Te 20 In x glassy system are obtained by quenching technique and crystallization kinetics has been studied using Differential Scanning Calorimetric [DSC] technique. Well defined endothermic and exothermic peaks are ob- served at glass transition temperature (T g ) and crystallization temperature (T c ). From DSC scans, T c is obtained at dif- ferent heating rates (5, 10, 15, 20, 25 K/min). It is observed that T c increases with increasing heating rate for a particular glassy alloy. Activation energy of crystallization (E c ) has been calculated by different Non-isothermal Iso-conversional methods, i.e., Kissinger-Akahira-Sunose [KAS], Friedman, Flynn-wall-Ozawa [FWO], Friedman-Ozawa [FO] and Sta-rink methods. It is observed that E c is dependent on extent of crystallization (α). Activation energy is also found to vary with atomic percentage of In in ternary Se 80-x Te 20 In x glassy system. The compositional dependence of Ec shows a re-versal in the trend at x = 15 in Se 80-x Te 20 In x , which is explained in terms of mechanically stabilized structure at this composition.
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