Intermediate Structures in the Process of Combustion of High-Energy Condensed Systems
V. A. Babuk, N. L. Budnyi, D. I. Kuklin, S. Yu. Naryzhnyi, A. A. Nizyaev
Ustinov Voenmekh Baltic State Technical University, Saint Petersburg, 190005 Russia
Keywords: solid propellant, paste propellant, intermediate structure, skeleton layer, agglomerate, fine-grain oxide, burning rate
Abstract
Combustion of high-energy condensed systems may include the formation of an intermediate structure (skeleton layer, which significantly affects the combustion process. The influence of binder solidification on the formation of such a structure is studied experimentally. It is demonstrated that the laws of the skeleton layer formation during binder solidification depend to a large extent on the polymer structure. A specific role of the substance acting as a binder is determined. The basic features of modeling phenomena in the surface layer with and without the skeleton layer are presented. The possibility of predicting a number of characteristics of the combustion process is demonstrated.
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