Abstract
The detonation method of depositing coatings is widely used. However, detonation equipment has been designed from empirical data without a detailed understanding of the process dynamics. Gas flow calculations made using the simplified assumption that the detonation products are an inert gas with a constant adiabatic parameter have resulted in theoretical product temperatures 24% higher than actual. This results in a substantial overestimate of the metal particle temperatures. Here, the detonation products are considered as a reacting medium having an equilibrium chemical composition at each point, and the parameters of the gas flow are calculated for a detonation wave propagating in a tube, while a comparison is made with experimental data for a stoichiometric hydrogen-oxygen mixture. Calculations were made for a C/sub 2/H/sub 2/+2.5 O/sub 2/ mixture and for a 2H/sub 2/+O/sub 2/ mixture, and were found to be in agreement with the experimental data. An algorithm has been devised that enables one to solve the problem for a series of detonating gas mixtures that are promising for detonation deposition.
Published Version
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