Parameters of the detonation of low-density condensed explosives

Temperature of the detonation front of an emulsion explosive

“…5 and are fitted by the quadratic polynomial T b = 1836 + 116p d − 10p 2 d . The temperature of the emulsion explosive based on AN/SN emulsion (points 1) is low compared to the temperatures of pressed explosives [3,[7][8][9][10]12]. The temperature changes monotonically with pressure, is 1880-2260 K in a wide pressure range from 0.7 to 11 GPa, and about two times lower than that in [11].…”

“…Then, the unloading and shock compression of the explosion products can be described by an isentrope with a constant exponent (see [23, § 5.6]); the temperatures in this case are linked by the simple relation [7] …”

“…of the free surface. In the second setup, an explosive charge is in contact with a plate (window) from a material that maintains transparency in the required range of pressure and has a low shock compression temperature compared to the temperature of the detonation front [7][8][9][10]. In this setup, the intensity of the rarefaction wave is significantly reduced, and the radiation emitted by the detonation complex can be recorded for a longer time.…”

“…However, despite the methodological difficulties, brightness temperatures T b of the detonation front equal to 2350-7500 K were measured for many heterogeneous explosives from low-velocity safety explosive, low-density TNT, and PETN to pressed RDX and HMX [3,4,[7][8][9][10][11][12]. Experimental data for the same explosive vary significantly depending on the method used; for example, for PETN at a density of ≈1.6 g/cm 3 , the detonation temperature is 4250 K [8] to 6300 K [12].…”