Abstract
Isothermal decomposition of unirradiated and γ-irradiated gallium acetylacetonate Ga(acac)
3
with 10
3
kGy total γ-ray dose was carried out in static air. The isothermal operating temperatures were 160, 170, 180 and 190°C. The kinetics of decomposition were followed using both model-fitting and model-free approaches. The results of model fitting application on the investigated data showed that the decomposition behaviour was best described by phase-boundary controlled reaction (R
2
). Kinetic parameters of the decomposition process were calculated and evaluated. Analysis of the data using model free approach signifies the dependency of E
a
on extent of conversion (α). Pre-γ-irradiation of gallium acetylacetonate Ga(acac)
3
with 10
3
kGy total γ-ray dose has almost no effect on the kinetic parameters.