Abstract
The crystallization kinetics of As
30Se
70−
x
Sn
x
chalcogenide glasses where
x=0, 1, 2 and 3 have been discussed under non-isothermal conditions by differential thermal analysis (DTA). From the heating rate dependence of the glass transition temperature (
T
g) and the crystallization temperature (
T
c), the values of the activation energy of glass transition (
E
g) and activation energy of crystallization (
E
c) are evaluated. Most of the above mentioned glassy compounds have three-dimensional growth mechanism, according to the average value of Avrami index (
n). The calculated average values of activation energies of crystallization have been used for the estimation of the thermal stability as well as the glass-forming tendency.