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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.28 SNIP: 0.421 CiteScore™: 0.9

ISSN 印刷: 2150-766X
ISSN オンライン: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v8.i3.20
pages 183-198

RDX AND HMX FLAME STRUCTURE AT A PRESSURE OF 0.1 MPa

Evgeny N. Volkov
Institute of Chemical Kinetics and Combustion SB RAS, Novosibirsk
Alexander A. Paletsky
Institute of Chemical Kinetics and Combustion, Siberian Branch Russian Academy of Sciences, 630090 Novosibirsk, Russia
Oleg P. Korobeinichev
Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, Institutskaya St. 3, Novosibirsk, 630090 Novosibirsk region, Russia

要約

The chemical flame structure of cyclic nitramines (HMX, RDX) was investigated at a pressure of 0.1 MPa using molecular beam mass spectrometry. HMX and RDX strands were burned in air and argon atmosphere, respectively. It was obtained that at atmospheric pressure combustion of HMX (unlike to RDX) is unstable. Eleven species (H2, H2O, HCN, CO2, CO, N2, N2O, CH2O, NO, NO2 and nitramine vapor (HMX or RDX)) were found in flames of HMX and RDX during its self-sustained combustion at a pressure of 0.1 MPa. It was found that nitramine flame at a pressure of 0.1 MPa has a two-zone structure. In the first flame zone, the consumption of nitramine vapor (HMX or RDX), NO2, CH2O and partial consumption of N2O with formation of H2, H2O, CO, N2, CO2, HCN and NO occurs. In the second flame zone, the main reaction is oxidation of HCN by NO accompanied with formation of final combustion products. Using experimental data, brutto-reactions for the gasification of nitramines at atmospheric pressure were determined. Data obtained in this work can be used for further development of the mechanism of gas-phase chemical reactions occurring in RDX and HMX flames.


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