ABSTRACT
Comp B, which is an explosive mixture of RDX and TNT, is used as the destructive charge in artillery shells, rockets and landmines. Previous work was done to improve Composition B performance by adding metallic additives in 12% by weight. In this paper Composition B mixtures with Aluminum and Magnesium were prepared and their effect on its thermal stability was studied by using a well known thermal analysis technique; Differential Scanning Calorimetry (DSC). Through heating the prepared samples from room temperature to 300°C, with three different heating rates (2, 5 and 10 °C/min). The data generated from DSC curves were employed in Kissinger kinetic method to calculate the needed activation energy for the thermal decomposition of the prepared samples. The obtained results show that the metallic additives have a negative impact on the thermal stability of the Composition B.