caa a22 4500 475810821 CHVBK 20180406123758.0 cr unu---uuuuu 170329e20000901xx s 000 0 eng 10.1007/BF02699523 doi (NATIONALLICENCE)springer-10.1007/BF02699523 Chakravarthy S. Indian Institute of Technology, 600036, Madras, Chennai, India aut Surface layer dynamics in the pyrolysis of ammonium perchlorate-hydrocarbon binder propellants [Elektronische Daten] [S. Chakravarthy] Mixtures of ammonium perchlorate particles and polybutadiene binder appear to exhibit preferential accumulation of one or the other component on the pyrolyzing surface over a range of rocket-operating pressures. At low pressures, the surface layer is enriched with the oxidizer, and at high pressures, it is enriched with the binder. The degree of accumulation of the oxidizer is found to be higher for smaller particle size. These experimental data can be explained by the difference in activation energies for pyrolysis of the oxidizer and the binder. The particle size effect is explained by consideration of nearly identical surface temperatures for the oxidizer and binder in mixtures with fine particles, but different temperatures for those with coarse particles. The results obtained are important to the explanation of the mechanism of plateau burning rate exhibited by certain composite propellants. Kluwer Academic/Plenum Publishers, 2000 Combustion, Explosion and Shock Waves Springer US 36/5(2000-09-01), 601-606 0010-5082 36:5<601 2000 36 10573 https://doi.org/10.1007/BF02699523 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02699523 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Chakravarthy S. Indian Institute of Technology, 600036, Madras, Chennai, India aut NATIONALLICENCE 773 0- Combustion, Explosion and Shock Waves Springer US 36/5(2000-09-01), 601-606 0010-5082 36:5<601 2000 36 10573 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer