Abstract:
This paper reports an experimental procedure and results of studying the ignition of variously shaped specimens of composite polymeric materials in gas flows. The main ignition mechanism under these conditions is the propagation of the heterogeneous oxidation of soot-formation products (carbon black and pyrocarbon) from the surface of contact with the oxidizer into the interstitial space controlled by diffusion. A balance relation between heat input and heat removal on the porous reacting surface is obtained to estimate the ignition conditions of composites under the conditions studied.
