Impact of Ag, Bi, Cd, and Zn incorporation on the kinetic parameters of glass transition/crystallization in chalcogens Se- and Te-rich ternary glass

The present study examines the impact of a few additives, i.e., silver (Ag), bismuth (Bi), cadmium (Cd), and zinc (Zn) on the kinetics of glass transition and crystallization in glassy Se₇₈Te₂₀Sn₂ alloy. This is accomplished by performing the calorimetric experiment in non-isothermal mode. To perceive the metal-induced consequences of Ag, Bi, Cd, and Zn as foreign atoms on the kinematics of glass transition, the glass transition temperature (T_g), Lasocka’s glass transition parameters (i.e., A₁ and B₁), and the glass transition activation energy (E_g) have been calculated. Similarly, we have determined the crystallization temperatures (on-set value T_o, and peak value T_c) and melting temperature (Peak value T_m), Lasocka’s crystallization parameters (i.e., A₂ and B₂), crystallization rate constant K, and the corresponding activation energy (E_c). Knowing the values of kinetic temperatures of glass transition/ crystallization, the thermal stability, and the glass-forming tendency of ternary Se₇₈Te₂₀Sn₂ and quaternary Se₇₆Te₂₀Sn₂M₂ (M = Ag, Bi, Cd, and Zn) alloys have been also determined.