Synthesis and Formation of Nanosized Materials in a Wave of Combustion of Aerosol-Generating Agents

摘要

Total-flooding fire-suppression systems using specially designed aerosol-generating agents (AGAs), such as fire-extinguishing explosives, solid fuels, and pyrotechnic mixtures, have been widely used for more than 20 years. The first report about such systems was made at the NPO Soyuz (Lyubertsy, Moscow oblast) in 1990. Since then, a lot of publications and patents about agents, units, and aerosol fire-suppression systems have been issued in Russia and abroad. Most of researchers consider that the high efficiency of the products of combustion of aerosol-generating explosives and aerosol-generating fuels is due to potassium-containing particles forming in the AGA combustion wave (which are the most efficient of all the aerosol species) and that only these compounds terminate chain reactions of combustion of organic substances in air. However, the currently available experimental data do not suggest a physicochemical model of fire-suppression mechanism. The potassium-containing particles in the AGA combustion products also cannot explain new experimental results of both theoretical and practical interest.