On the Physical Mechanism of Electro-conductivity of Detonation Products of Condensed High Explosive

Radiation-MHD simulations for the development of a spark discharge channel.

“…We also note that the electrical conductivity magnitude for TATB is very large compared to the value of 350 S/m measured by Gorshkov et al (2006) for the detonation products in shock-driven detonation -shown in Figure 1 of their paper [10]. For TATB here with an electric-spark driver, we are seeing on the order of 10,000 S/m, even with the use of the sc scale factor.…”

“…Analysis of the volumetric rate of Joule heating shows that the deposition of energy by the current discharge is no smaller for TATB than for dense Lexan, so it is likely not caused by the Joule heat density floor. (The detonation-zone temperatures measured by Gorshkov et al (2006) -shown in Figure 2 of their paper -are around 2,500 K.)…”

“…It is of interest in engineering applications because of its high density, decreased sensitivity to detonation, and high-temperature stability [8,9]. The electrical properties of TATB have not been studied extensively, but Gorshkov et al (2006) have shown that the detonation product gases can carry an electric current [10]. They have also measured a peak electrical conductivity of approximately 350 S/m in the detonation region.…”