Abstract
AbstractOn the Propagation Laws of Combustion Waves in Solids (Pyrotechnic Reactions)The existing theoretical models accounting for the rate of propagation of combustion waves in solids involve conductive heat transfer. We show that in metal/oxidizer systems, this rate can be recalculated with satisfying accuracy from the thermal diffusivity. The size of the particles strongly effects this property. We suggest to represent the variability of pyrotechnical compositions by a “characteristic curve” which represents the variation of slowness of the combustion wave (v−1) as a function of the reciprocal of heat of reaction (|ΔH|−1).
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