Combustion-wave propagation through an inert obstacle in real condensed systems

Displacement of combustion products behind the chemical-reaction front in a condensed system is shown to affect combustion-wave propagation through an inert obstacle. In the experiments, pressed specimens of a Ti+C+20%TiC mixture containing an obstacle in the form of a tantalum band 10 $\mu$m to 0.6 mm thick were used. Dependences of the delay of the combustion wave during penetration through the obstacle on the obstacle thickness were obtained for the cases of small ($<$ 1 mm) and large ($\approx$4.5 mm) displacements of the material behind the chemical-reaction front.