In this research, composites of Al/RDX as energetic formulation were prepared using aluminum particles as metallic fuel and RDX as an explosive. SEM/EDX/MAP and FTIR analysis were used to characterize and explore the quality of the prepared composites, while thermal analysis was used to determine their thermal behavior. The results showed that by the increase in the amount of RDX in the formulation, the decomposition temperature of RDX towards higher temperatures. Also, the thermokinetics and thermodynamics parameters, as well as the critical explosion temperature and the self-igniting decomposition temperature of the composites were investigated by two methods, i.e., Kessinger and Starink. The results of the calculations showed that the activation energy has increased from 277 kJ/mol to 400 kJ/mol by decreasing the percentage of Al in the formulation. On the other hand, the enthalpy and entropy of the activation also show an increase, which indicates the effect of Al powder in Al/RDX composite formulation
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