Thermal characterization of glassy Se70Te20M10 using DSC technique

Differential scanning calorimetry (DSC) has been employed to study the phase transformation in glassy Se₇₀Te₂₀M₁₀ (M = Ag, Cd, Sb) to understand the glass forming tendency (GFT) and rate of crystallization. The difference (T _c–T _g) (indicator of GFT and thermal stability) has been determined by DSC thermograms for each sample. The values of T _c and T _g are found to depend on GFT. The rate constant K (indicator of rate of amorphous to crystalline phase transformation) has been evaluated using method of Augis and Bennett. The parameter K is also found to be related with (T _c–T _g).