The Effect of Solid Oxidant Additives on Diffusion Burning of Polymers in Air,
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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The rate of diffusion burning w of liquid fuels in cylindrical pipes or cores of solid fuels in a gaseous oxidizer increases considerably with a decrease in the core diameter and with an increase in oxygen concentration. In contrast, the burning rate u of mixtures of solid fuels with solid oxidizers depends only slightly on the diameter if it is not too small and composition of the ambient gas, but usually is substantially dependent on pressure. For a number of problems it is of interest to observe a transition from the first mode of burning to the second with the introduction into the fuel of gradually increasing additions of solid oxidizers. In this paper such a transition is observed during the addition of ammonium perchlorate APC to polymethyl methacrylate PMMA.
- Combustion and Ignition
- Solid Rocket Propellants