The effect of gamma irradiation on glass transition temperature and thermal stability of Se96Sn4 chalcogenide glass

摘要: Abstract Se 96 Sn 4 chalcogenide glass was prepared by melt quenching technique and exposed, at room temperature, to different doses of 4, 8, 12, 24 33 kGy high-energy 60 Co gamma irradiation. Differential scanning calorimeter (DSC) used under non-isothermal condition determine the transition temperature T g , onset c peak p temperatures crystallization, un-irradiated γ-irradiated samples, four heating rates. The variation with rates utilized calculate activation energy E t for glass, using methods suggested Kissinger Moynihan. Based on obtained values characteristic thermal stability monitored through calculation S parameter crystallization rate factor 〈 K 〉 irradiated glass. Results reveal that, as γ-dose increases up 12 kGy then decreases higher but remains more than that Meanwhile, both attain their minimum same dose is thermally stable this particular dose.