Differential scanning calorimetry measurements under non-isothermal conditions were performed on the chalcogenide glasses
Se98−x Sx Sn2 (x = 8, 18) and Se77 S20 X3 (X = Sn, Pb). The values of the
glass transition temperature and crystallization temperature were found to
depend on the heating rate. The activation energy for the glass transition
and the activation energy for crystallization were calculated from the
heating rate-dependence. The thermal stability and the glass forming
tendency were calculated and they were found to have the same trend.