%0 Journal Article %A Sinditskii, Valery %A Chernyi, Anton N. %A Serushkin, Valery V. %A Filatov, Sergey A. %D 2015 %I Begell House %K ammonium perchlorate, nitroesters, combustion mechanisms %N 5 %P 381-398 %R 10.1615/IntJEnergeticMaterialsChemProp.2015011757 %T COMBUSTION BEHAVIORS AND MECHANISM OF AP-BASED COMPOSITIONS WITH NITROESTER BINDERS %U https://www.dl.begellhouse.com/journals/17bbb47e377ce023,488f8cbb66341308,1a2fbccf3abb3f89.html %V 14 %X This paper describes results of the combustion study of binary compositions of ammonium perchlorate (AP) of various fractions with nitroester-based binders, the combustion of which obeys two different mechanisms: a gas-phase mechanism inherent to volatile energetic materials and a mechanism with the leading reaction in the condensed phase. For binders, where combustion obeys a gas-phase mechanism, three combustion models can be realized depending on the AP particle size and content. The maximum rate is achieved with an excess of the oxidizer, which is indicative of nonparticipation of a part of the oxidizer (NO and N2O) in the redox reactions in the leading flame. The addition of AP to the binder, where burning is driven by reactions in the condensed phase, results in changing the combustion mechanism. The combustion instability of mixtures with 30−35% AP was observed in the low-pressure region, which lies between two pressure intervals, combustion within one of which is subject to the Merzhanov−Dubovitskii model, and within the other one, the burning obeys the gas-phase model. The ability of the mixtures to sustain combustion in the entire range of 0.1−15 MPa is restored by addition of more than 50% AP. %8 2015-10-08