Author
J.D. Hightower
Bio: J.D. Hightower is an academic researcher. The author has contributed to research in topics: Combustion & Ammonium perchlorate. The author has an hindex of 1, co-authored 1 publications receiving 87 citations.
Topics: Combustion, Ammonium perchlorate, Deflagration
Papers
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01 Jan 1967
TL;DR: In this paper, the authors used cleaved sections of large single crystals grown from water solution, discussing burning rate and combustion zone, and discussed burning area and burning rate of ammonium perchlorate.
Abstract: Deflagration of ammonium perchlorate studied using cleaved sections of large single crystals grown from water solution, discussing burning rate and combustion zone
93 citations
Cited by
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TL;DR: In this paper, a model describing the combustion of ammonium perchlorate (AP) composite propellants has been developed based on a flame structure surrounding individual oxidizer crystals; the relationship between crystals and the binder matrix was evaluated statistically.
Abstract: A model describing the combustion of AP composite propellants has been developed. The model is based on a flame structure surrounding individual oxidizer crystals; the relationship between crystals and the binder matrix being evaluated statistically. Three separate flame zones are considered: 1) a primary flame between the decomposition products of the binder and the oxidizer, 2) a premixed oxidizer flame, and 3) a final diffusion flame between the products of the other two flames. Simple global kinetics are assumed for gas-phase reactions, and the surface decomposition of the propellant ingredients is assumed to be adequately described by simple Arrhenius expressions. The oxidizer decomposition is taken as being the over-all controlling factor in the combustion process. The results obtained show that the calculated surface temperature and the effect of oxidizer concentration predicted by the model are in agreement with observed experimental trends. The predicted effect of particle size is somewhat greater than observed experimentally while the temperature sensitivity is in excellent agreement with experimental data. The results of the calculations indicate a relatively strong exothermic reaction taking place at the propellant surface. Apparently the ammonium perchlorate (AP) partially decomposes exothermically in the thin surface melt previously reported in AP deflagration studies.
382 citations
124 citations
TL;DR: In this article, a single crystal self-deflagration of pure ammonium perchlorate single crystal was studied, determining energy transfer mechanisms from pressure effects, combustion characteristics and subsurface profile.
Abstract: Pure ammonium perchlorate single crystal self deflagration, determining energy transfer mechanisms from pressure effects, combustion characteristics and subsurface profile
123 citations
TL;DR: In this paper, a series of experimental studies of combustion of sandwiches is reported, and the results are used to develop a relatively detailed qualitative model for the combustion zone microstructure.
117 citations