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% Ti C 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 dur ing penetration through the obstacle on the obstacle thickness were obtaine d for the cases of small (<1 mm) and large (approximate to 4.5 mm) displace ments of the material behind the chemical-reaction front.