On the mechanism of carbon nanostructures formation at reaction of organic compounds at high pressure and temperature

Abstract

Based on the analysis of the data on the behavior of electric conductivity at the detonation of condensed high explosives (HEs) with the composition CHNO and the carbon mass fraction higher than 0.1, the conclusion was made of the presence of long carbon nanostructures. These structures penetrate all the space of reacting HE. The structures are formed already in the chemical peak region, and they evolve along the detonation wave.

Elongated conductive structures in detonation soot of high explosives

“…High electrical conductivity suggests contact conductivity provided by elongated carbon structures. 14,23 At the same time, rapid carbon condensation at the initial stage does not mean the presence of elongated penetrating structures. The presently prevailing point of view assumes, that individual carbon particles are formed in the chemical peak [24][25][26][27][28][29][30][31][32][33] which aer the cooling at later stages form fractal structures 34 and agglomerates found in saved detonation products (SDP).…”

Electrical Conductivity Distribution in Detonating Benzotrifuroxane

“…Thus, the temperature does not play a significant role, and processes such as thermal ionization of the detonation gases and thermal emission from the solid products are of secondary importance. It was shown earlier in work 32 that the temperature effect on the conductivity is weak.…”