Influence Of Crystal Characteristics On The Shock Sensitivities Of Cyclotrimethylene Trinitramine, Cyclotetramethylene Tetranitramine, And 2,4,6,8,10,12-Hexanitro-2,4,6,8,10,12-Hexaazatetra-Cyclo[5,5,0,0(3,11)0( 5,9)] Dodecane Immersed In Liquid

The shock sensitivities of differently qualified cyclotrimethylene trinitramine (RDX), cyclotetramethylene tetranitramine(HMX), and 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazatetra-cyclo[ 5,5,0,0(3,11)0(5,9)]dodecane (CL-20) immersed in liquid were determined by the large-scale gap tests, for systemic discussion on the influences of crystal characteristics on them. As a result, it shows that (1) the immersion of crystals in liquid leads to an obvious sensitivity decrease; (2) for all three explosives, their shock sensitivities are lowered with increasing their crystal apparent densities or decreasing their particle sizes, and almost not affected by particle morphologies; (3) the crystal twins are readily formed for HMX and the most distinct factor influencing its shock sensitivities; (4) it is found that the crystal apparent density affects most obviously the shock sensitivities for RDX and CL-20; and (5) CL-20, HMX, and RDX are less and less sensitive to shock, suggesting chemical components are also a determining factor. (C) 2013 AIP Publishing LLC.