Combustion Mechanism of Tetrazole Derivativesстатья
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Дата последнего поиска статьи во внешних источниках: 17 октября 2017 г.
Аннотация:Burning of tetrazole and 5-chlorotetrazole and temperature distribution in the combustion wave are studied. The basic peculiarity of tetrazole burning is shown to consist in that in samples with no oxidizer the combustion products contain stable high-energy nitrite derivatives rather than equilibrium adiabatic species. As a result, only part of the energy stored in the energetic material is released. Although the decomposition reactions are rare controlling steps in the combustion mechanism of these compounds, they turn out other than those controlling thermal decomposition at temperatures between 150 and 250 degrees C. It is revealed that tetrazole bums in an unusual regime in which the surface temperature undergoes cyclic variations. The process underlying this phenomenon is periodical build-up of a decomposition product in the surface layer. The boiling/decomposition point of this product is much higher than the tetrazole boiling point. The layer is periodically removed to clean the burning surface.