Structural and reactive study of an aged nanodiamond-based energetic composition

摘要

The use of nanodiamond elaborated by detonation as reducing agent in a potassium chlorate-based energetic composition (further noted PC / nD) was reported in a recent paper . This work pointed out the unconventional properties of these mixtures, which were found to be relatively stable towards thermal stresses. In the present paper, the thermal stability of the most energetic PC / nD composition is studied by structural and reactive analysis. For this purpose, the powdery material is first pelletized and then isothermally aged under atmospheric conditions. Nitrogen adsorption was used to measure the specific areas of PC / nD compositions. It was shown that thermal ageing induces a substantial decrease in specific area even if the weight loss is insignificant. That means that the specific area measurement could be used as an efficient criterion to estimate the ageing of the nano-sized energetic compositions. The incidence of ageing was also investigated by elemental analysis and Time Resolved Cinematography (TRC).