Dependence of the Diamond Phase Content in Condensed Detonation Carbon on Trinitrotoluene Concentration in the Explosive Mixture Trinitrotoluene/Diethanolamine Dinitrate
N. V. KOZYREV1, P. I. KALMYKOV1,2, A. G. VAKUTIN1, K. A. SIDOROV2,3
1Institute for Problems of Chemical and Energetic Technologies, Siberian Branch of the Russian Academy of Sciences, Biysk, Russia
2Federal Research and Production Centre ALTAI, Biysk, Russia
3Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
Keywords: ТНТ, ДИНА, энтальпия растворения, детонационный синтез, детонационный наноалмаз, TNT, DINA, enthalpy of dissolution, detonation synthesis, detonation nanodiamonds
Pages: 692-698
Abstract
The dissolution of trinitrotoluene (TNT) in a low-melting nitramine, diethanolnitramine dinitrate (DINA), was studied, and a phase diagram for the TNT/DINA system was built. The enthalpy of TNT dissolution in DINA within the temperature range 55-75 °С was measured. The yields of condensed carbon (CC), detonation nanodiamonds (DNDs) and DND content in CC versus the composition of TNT/DINA cast melts upon detonation in a blasting chamber were experimentally studied. The yield of CC was found to linearly decline with decreasing TNT content in the composition, with the content of the diamond phase in CC going through the maximum. The highest yield of DNDs was achieved when the TNT content in the mixture was close to the eutectic (~40 %).
DOI: 10.15372/CSD2019192
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