Experimental Study of the Unsteady Burning Rate of High-Energy Materials under Depressurization
V. A. Arkhipov1, S. A. Basalaev1, S. S. Bondarchuk2, O. G. Glotov3, V. A. Poryazov1, Ya. A. Dubkova1
1National Research Tomsk State University, Tomsk, 634050 Russia
2Tomsk State Pedagogical University, Tomsk, 634061 Russia
3Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
Keywords: high-energy material, metal powders, depressurization, unsteady burning rate, experimental study
Abstract
This paper describes the method and results of an experimental study of unsteady burning rate of high-energy materials containing metal powder additives under depressurization at a rate of 140-160 MPa/s. A method based on stating and solving the inverse problem of internal ballistics is used to determine the unsteady burning rate. The studies are carried out for high-energy materials, including energy additives in the form of metal powders (ASD-4, ASD-6, and Alex aluminum), aluminum diboride, and dodecaboride. It is shown by analyzing the results of the study that the unsteady burning rate of high-energy materials under sharp depressurization is oscillatory and depends on energy additive type.
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