Abstract :
Isothermal decomposition of non-irradiated and post-γ-irradiated thallous acetate has been investigated at different temperatures between 553 and 583 K. Irradiation was observed to enhance the rate of decomposition without modifying the mechanism of thermal decomposition. Thermal decomposition of thallous acetate has been shown to proceed by nucleation and growth mechanism (Avrami and Erofe’ev equation) both for non-irradiated and post-γ-irradiated samples. The enhancement of the decomposition was found to increase with an increase in the γ-ray dose applied to the sample and may be attributed to an increase in point defects and formation of additional nucleation centers generated in the host lattice.
