Study of Combustion Mechanism of New Polymer/Oxidizer Mixtures
An excellent resource for a person interested in the technical aspects of combustion of substances.
Combustion mechanisms of mixtures of CL-20 (hexanitrohexaazaisowurtzitane,or,HNIW) with active binder, plastified polyurethane (PUNE), 70:30, were investigated simultaneously with those of mixtures of PUNE/HMX, 30/70. Temperature profile and surface temperatures in combustion waves of the mixtures were measured at pressures 0.1-10 MPa and sample temperatures -100, 20 and 90°C. Burning rates, heat release in solid, heat feedback from gas to solid, heat release rate in gas, zone temperatures and sizes, macrokinetics of gasification,leading stages, sensitivities, criteria of stable combustion and response functions – were found. Preliminary results for mixtures of (BAMO-AMMO)/CL-20, 20/80, were obtained.
Mixtures of polymer binders with new oxidizers offer many advantages for advanced propulsions. Energetic binders are preferable for that propulsions. Burning wave parameters were found by experiments and by processing of the experimental data. Deep processing of experimental data allows macrokinetics of gasification, leading stages, criteria of stable combustion, and sesitivities of burning rate and surface temperature to be established. Burn-rate response functions to oscillatory pressure were estimated. Preliminary results for advances mixtures (AMMO-BAMO)/HNIW, 20:80, are indicated.
Temperature profiles of the combustion waves and the burning surface temperatures were obtained by microthermocouple methods. Profiles of the combustion waves were obtained by microthermocouples imbedded into solid.
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