Some Studies on Solid Propellants : Part III. Analytical Results of the Combustion Gases

概要

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The variations of the composition of combustion gases of ammonium perchlorate (AP) with the addition of various catalysts are studied in hopes of finding out good correlation to the burning rate of AP propellant. The effects of the catalysts on the composition of gaseous products of AP combustion are quite remarkable and it is concluded that catalysts which produce higher concentration of oxygen and lower concentration of nitric oxide during the combustion of AP may increase the burning rate of propellant. At the same time, some catalysts are very effective in order to decrease the mean molecular weight of combustion products of AP. The similar analyses of the combustion products of AP composite propellants are also carried out, but the effect of these catalysts is quite scarce and only a little variation of gaseous composition by the addition of these catalysts is observed. Accordingly, the catalytic effect on the decrease of mean molecular weight of the combustion products of propellants is not remarkable. In appendix, theoretical calculations of specific impulse are represented as a reference to the experimental studies.
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