A Low-Sensitivity Composition Based on FOX-7

Abstract

1,1-Diamino-2,2-dinitroethene (DADNE, FOX-7) is considered to be an explosive combining comparatively high performance and low sensitivity. In the present study, FOX-7 has been evaluated as a possible replacement of RDX in TNT-based melt-cast compositions. A composition containing FOX-7, TNT, Al and wax, and a method of preparing it were proposed. Its sensitivity to impact, friction, shock wave, jet impact, fast heating, and its thermal stability were tested. Some detonation parameters like the detonation pressure, velocity and heat were measured. Moreover, the Gurney velocity, the so-called effective exponent of the expansion isentrope and the JWL equation of state of the detonation products were determined from the results of a cylinder test. The detonation characteristics were compared with that obtained for cast TNT.