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The results of experiments to determine the sensitivity to impact and puncturing, as well as to the response time of explosive compositions based on porous silicon with various oxidants and phlegmatizing or inert additives, are presented. The results obtained are compared with the data on the response time of the standard igniting compositions and initiating explosives.

Laser and electron-beam initiation of the combustion process of energy-saturated composite films were studied. Composites were produced from porous silicon, a fluorine-containing polymer, and graphene. It is shown that the impact of a high-current electron beam of nanosecond duration does not lead to the excitation of the combustion process. Moreover, the process of film combustion during laser initiation is accompanied in some cases by the appearance of a zone of secondary flame and white smoke. Keywords: porous silicon, energy-saturated composite, laser initiation, electron-beam initiation, combustion.