Topic
Ammonium perchlorate
About: Ammonium perchlorate is a research topic. Over the lifetime, 2359 publications have been published within this topic receiving 33412 citations. The topic is also known as: AP.
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16 citations
TL;DR: In this article, the effect of pre-irradiation by 1.2 and 1.3 MeV cobalt-60 gamma-rays on the subsequent thermal decomposition of the alkaline earth azides was investigated.
Abstract: ISOTHERMAL decomposition kinetics of certain solids are markedly affected by previous exposure to ionizing radiation. The observed effects are usually interpreted as a change in the nuclei formation rate and, in the following stage, enhanced propagation of the reaction through the solid. For example, the effect of pre-irradiation by 1.2 and 1.3 MeV cobalt-60 gamma-rays on the subsequent thermal decomposition of the alkaline earth azides1, or the permanganates of sodium, potassium, rubidium, caesium and silver2, is to shorten the induction period and to accelerate the reaction. The solids studied so far all contain a metallic cation, thus it would be interesting to investigate the effect of pre-irradiation on compounds such as ammonium perchlorate which contain a non-metallic cation.
16 citations
TL;DR: In this article, the electrical conductivity of compressed pellets and single crystals of ammonium perchlorate has been measured from room temperature up to decomposition temperatures, and the effects of thermal cycling experiments up to various maximum temperatures.
16 citations
TL;DR: In this article, the effect of gaseous combustion environment on particle size distribution and chemical compositions of condensed combustion products of a model propellant containing ammonium perchlorate, binder, and 23.4% aluminum was studied.
Abstract: The effect of gaseous combustion environment on particle size distribution and chemical compositions of condensed combustion products of a model propellant containing ammonium perchlorate, binder, and 23.4% aluminum was studied. Experiments were conducted at pressures of 0.6, 4.0, and 7.5MPa. Oxide particles with sizes of 1.2–60 μm and agglomerates with sizes from 60 μm to maximum were investigated. In experiments with nitrogen and helium, the difference in the mean sizes of the sampled agglomerates does not exceed the experimental error. The difference in the amount of unreacted (metallic) aluminum in the agglomerates sampled in nitrogen and helium is also negligible. Replacement of nitrogen by helium affects the size distribution of the oxide particles by increasing the mass fraction of particles with sizes of 1.2–10 μm, and this effect is enhanced with pressure.
16 citations