Abstract:To evaluate the energy potential of new oxidation high nitrogen heterocycle hydroxylammonium salts as composite solid propellant components, the energy effects after replacing AP in two kinds of composite solid propellant systems AP/Al/HTPB and AP/Al/GAP+NE with dihydroxylammonium 5, 5′-bistetrazole-1, 1′-diolate(TKX-50), dihydroxylammonium 3, 3′-dinitro-bis-(1, 2, 4-triazole)-1, 1′-diolate(DHDNBT) and dihydroxylammonium 5, 5′-azo-bis(1-oxidotetrazolate)(DHABT)were calculated by using propellant performance evaluation program(PEP)and was compared with HMX. Results show that in the high solid content AP/Al/HTPB system, the energy characteristics of the formula obtained by partly replacing AP with TKX-50 AND DHABT in a wide formula range are equivalent to those of the formula obtained by replacing AP with HMX. The energy characteristics of the formula obtained by replacing AP with DHDNBT are equivalent to those of the formula obtained by replacing AP with the same content HMX. In AP /Al/GAP+NE system, the energy characteristics of the formula with DHDNBT are the same with those of the formula with HMX, but the energy performances of the formula with TKX-50 and DHABT are better than those of formula with HMX. The highest freezing specific impulse of the formula with TKX-50 and DHABT are 2662.7 N·s·kg-1(TKX-50)and 2696.0 N·s·kg-1(DHABT)respectively and 40.2 N·s·kg-1(TKX-50) and 73.5 N·s·kg-1(DHABT)higher than the highest freezing specific impulse of the formula obtained by replacing AP in the same system with HMX(2622.5 N·s·kg-1). Replacing AP in AP/Al/GAP+NE with the assumed dihydoxylammonium bis(oxidotetrazol-5-yl)amine(DHBTA)can make the highest freezing specific impulse achieve 2708.7 N·s·kg-1, 86.2 N·s·kg-1 higher than the highest freezing specific impulse obtained by replacing AP in the same system with HMX and in a wide range of adjustment formula has a higher energy characteristics than HMX formula.