Effect of Transition Metal Oxides on Decomposition and Deflagration of Composite Solid Propellant Systems: A Survey

Advances in science and technology of modern energetic materials: An overview

“…The compound was found to have excellent initiating ability which can be used as primary explosive in various detonators. Talawar et al [139] have reported the carbohydrazide complexes of cobalt and nickel perchlorates for initiator applications. Some of the important properties of initiator compounds are listed in Tables 9 and 10.…”

Nano-metal oxide: potential catalyst on thermal decomposition of ammonium perchlorate

“…This stimulated the attention of many research groups, especially those dealing with the development of solid propellants, to the problem. The catalytic activity of TMOs in the thermal decomposition of AP has been reported by several researchers [31][32][33][34][35]. It is generally observed that since catalytic activity is primarily a surface phenomenon, size reduction of the catalyst increases the surface area and hence the catalytic activity is also increased.…”

“…Thermal decomposition characteristics of AP influence the combustion behaviour of the propellants [31,12]. AP-based CSPs require combustion modifiers to achieve higher burning rates and conventionally TMOs are used as the burning rate modifiers [31][32][33][34]. Previous studies suggested that the burning rate modifiers are active mainly in the condensed phase and hence activity of the catalysts during condensed phase thermolysis of AP can be a good indicator to the catalytic activity of the additive during combustion of CSPs [31].…”

Evaluation of Potassium Perchlorate as a Burning Rate Modifier in Composite Propellant Formulations

“…This trend was found to be more promising in the case of 24.1% KP (on replacement of 50 µm AP), where the value of EOM was 672 Pa·s at 40 °C, compared to 1008 Pa·s at 40 °C for the standard composition (Composition I). The decreasing trend in viscosity may be due to the higher tap density of KP (1.5 g/cm 3 ) compared to AP fine − 50 µm (1.0 g/cm a lowering of the viscosity of the propellant slurry containing KP, due to better packing. The lowering in the viscosity may help in increasing the solids loading of the propellant compositions, which can result in better performance in terms of density and specific impulse.…”

“…To achieve a required burning rate, transition metal oxides (TMOs) are preferred [2][3][4][5][6]. However, due to the inertness of TMOs and their overall effect on processibility and performance, percentages higher than 1% cannot be used.…”