Pressure of the products of the explosive decomposition of a mixture of pentaerythritol tetranitrate and nickel monocarbide nanoparticles initiated by laser radiation

摘要

Relative characteristics of the pressure created by the products of explosive decomposition of a mechanical mixture of pentaerythritol tetranitrate and nickel monocarbide (NiC) nanoparticles upon laser initiation are determined. It is demonstrated that the explosion of the mechanical mixture is caused by the absorption of laser radiation by NiC nanoparticles, a process accompanied by the heating and exothermic decomposition of NiC to the nickel and carbon phases, which, in turn, give rise to the formation of hotspots. The optimal concentration of NiC at which the maximum pressure of the explosion products is achieved is determined.