Abstract
Thermal stability and crystallization kinetics of As
14Ge
14Se
72−
x
Sb
x
(where
x
=
3, 6, 9, 12 and 15
at.%) glasses are studied by the differential scanning calorimetry. The values of the glass transition temperature (
T
g) and the peak temperature of crystallization (
T
p) are found to be dependent on heating rate and antimony content. From the heating rate dependence of
T
g and
T
p the values of the activation energy for glass transition (
E
t) and the activation energy for crystallization (
E
c) are evaluated and their composition dependence discussed. Crystallization studies have been made under non-isothermal conditions with the samples heated at several uniform rates. Using a recent analysis developed for non-isothermal crystallization studies, information on some aspects of the crystallization process has been obtained. The stability calculations emphasized that the thermal stability decreases with increasing the Sb content.