INFLUENCE OF NANO-PARTICLES ON THE FLAME TEMPERATURE OF PYROTECHNIC MIXTURES

摘要

Recently available nano-particles of different metals were mixed with ammonium perchlorate and were compared with the same mixtures of coarse metal particles. The fine particles show a faster combustion time combined with a higher radiative emission. The flame temperatures of the most mixtures containing nano-particle are somewhat lower than these with coarse particles. This is explained with a higher pre-oxidation of the nano-metals resulting in a lower heat of combustion of the mixtures.