Initiation of the explosive decomposition of pentaerythritol tetranitrate with ultradispersed particle additives by laser pulses

Abstract

The explosive decomposition threshold of pentaerythritol tetranitrate was studied depending on the concentrations of ultradispersed Al particles and Ni-C and Al-C mechanocomposites in the samples. It was found that the critical pulse energy density W0.5, which corresponds to a 50% probability of explosion, reached a minimum value at additive concentrations of 0.1–0.3 wt %: W0.5 = 1.4, 5, or 4 J/cm2 for Al, Ni-C, or Al-C, respectively.