Experimental Study Using the Microwave Method of the Influence of Oxidizer Dispersion on the Combustion Rate of Energy Condensed System at High Pressure
K. V. Fedotova, A. K. Shostov, V. V. Kozichev, D. A. Yagodnikov
Bauman Moscow State Technical University, Moscow, Russia
Keywords: energetic condensed system, dispersion, high pressure, combustion rate, microwave method
Abstract
The effect of the powdered oxidizer (potassium nitrate) particle size on the combustion law of a model energetic condensed system in the pressure range of 0.5 ÷ 40 MPa was experimentally determined using the microwave method of contactless diagnostics. The model composition of the system based on an epoxy combustible binder, potassium nitrate and a combustion modifier --- iron oxide Fe2O3 was studied. Random errors were taken into account when calculating the experimental values of the linear combustion rate. Analytical dependences of the linear combustion rate of model energetic condensed systems on pressure, approximated by power and linear functions, were obtained. It was found that with a decrease in the particle size of the powdered oxidizer, the value of the transition pressure from the power combustion law to the linear one decreases, while the combustion rate also increases.
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