Shock Initiation and Detonation Parameters of Hexanitrohexaazaisowurtzitane (CL‐20)

Experimental studies of the reaction zone structure in hexanitrohexaazaisowurtzitane (CL‐20) at different initial densities with a multichannel VISAR laser interferometer have been carried out. It is shown that the flow in the reaction zone corresponds to the Zeldovich‐von Neumann‐ Döring theory with a characteristic reaction time of 50 ns. The dependence of the detonation velocity on the initial density is well approximated by a similar line for HMX with a charge diameter of 20 mm. With a decrease in diameter to 4 mm, a sharp drop in the detonation parameters of CL‐20 has been recorded. The initiation of detonation under shockwave action is investigated, and the comparison of data for CL‐20 and PETN has shown that their shockwave sensitivity is quite close. The experiments on the acceleration of thin steel plates by detonating CL‐20 charges have been performed, and it is found that its accelerating ability is higher than that of HMX and retarded RDX.