Insight into thermal decomposition behavior of ammonium dinitramide‐based liquid propellant through reactive molecular dynamics simulations

Propellants Explosives Pyrotechnics, Год журнала: 2023, Номер 48(12)

Опубликована: Окт. 19, 2023

Abstract The thermal decomposition characteristics and fuel oxidation mechanism of ammonium dinitramide (ADN)‐based liquid propellant are great practical significance, but it is difficult to detect the whole intermediates products using traditional experimental methods. In this paper, ADN‐based at different temperatures (1500, 2000, 2500, 3000 K) was simulated reactive molecular dynamics method. effect temperature on distribution main were investigated. results showed that played a role in promoting propellant. N 2 , H O, NH 3 HNO ⋅NHO, CH CO NO while their evolution generation pathways also described detail. initial ADN breakage N−H bonds ⋅NH 4 or N−N/N−O ⋅N(NO ) methanol generated free radicals by dehydrogenation. There no direct chemical reaction between methanol, interaction accomplished through consumption radicals. O provided large amount ⋅H ⋅HO leading lower activation energy than from reference. overall deduced. would help further investigate propellants.

Язык: Английский

A study of thermal and safety behaviour of potassium nitrate in flash powder after surface modification for prevention of self-decomposition due to hygroscopic effect

Journal of Thermal Analysis and Calorimetry, Год журнала: 2024, Номер 149(14), С. 7763 - 7772

Опубликована: Май 23, 2024

Язык: Английский

Cocrystallisation of high-energy oxidant ammonium dinitramide with triaminoguanidine nitrate for reduced hygroscopicity

Chinese Journal of Chemical Engineering, Год журнала: 2024, Номер 74, С. 249 - 258

Опубликована: Авг. 13, 2024

Язык: Английский