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Experimental study of Double‐Base Propellants Combustion Mechanisms
Author(s) -
Duterque J.,
Hommel J.,
Lengelle G.
Publication year - 1985
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.19850100106
Subject(s) - propellant , bar (unit) , base (topology) , combustion , materials science , thermal conductivity , thermal , chemistry , chemical engineering , thermodynamics , composite material , organic chemistry , physics , engineering , mathematical analysis , mathematics , meteorology
Abstract Experimental results about r b (P) laws of double‐base propellants are presented. The influence of many parameters (calorific potential, fabrication process, additives) is studied. With surface structure examination, we show that the first super‐rate (P < 100 bar) is in relation with the presence of a carbon layer which increases chemical reactions. The second super‐rate (200 bar < P < 400 bar), more physical than chemical, is in relation with the presence of globules (probably PbO) which increase the thermal conductivity near the propellant surface.