| Popis: |
In several models of the shock-induced decomposition of heterogeneous explosives, it is assumed that the shock generates a small amount of decomposition at microscopic hot spots, and that the reaction is completed by surface burning progressing at the interface between the gaseous products and the unreacted solid. We have used experimentally determined reaction rates in heterogeneous explosives to calculate the interface velocities for outward-burning spherical holes and inward-burning spherical grains. We find that reaction rates early in the decomposition are too large to support a simple pressure-dependent hole-burning model, and that a grain-burning model could be more feasible. |
