Energetic Characteristics and Signature of Composite Propellant Containing Different Oxidizer

To study energetic characteristics and signature of composite propellant of Ammonium Perchlorate(AP) using a substitute of oxidant,such as Cyclotrimethylenetrinitriamine(RDX),hexanitrohexazaisowurtzitane(CL-20),Ammonium dinitramide(ADN) and Hydrazinenitroform(HNF),theoretical performance of the propellant was calculated based on the principle of free-energy minimization.The results show that theoretical specific impulse of the composite propellant is increased and signature of secondary smokes is reduced,and the most increasing rate of theoretical specific impulse are 0.85%,1.1%,3.37% and 5.1%,respectively.Effects of secondary combustion of the composite propellant of AP using a substitute of ADN are decreased obviously.The energy properties are consistent with signature when the composite propellant of Al is using a substitute of ADN and HNF.Theoretical specific impulse,primary smoke and secondary combustion of the composite propellant are all decreased.