Propagation of a Gas-Free Combustion Wave through a Perforated Barrier
R. M. Gabbasov1, V. D. Kitler1, V. G. Prokof'ev1,2, A. M. Shul'pekov1
1Tomsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Tomsk, 634021 Russia
2Tomsk State University, Tomsk, 634050 Russia
Keywords: SHS, reaction front, burning rate, critical diameter
Abstract
The propagation of a high-temperature synthesis wave through a perforated metal plate mounted inside a cylindrical sample of a powder mixture of Ni + Al was studied experimentally and theoretically. Copper and steel plates of different thickness were used. The passage of the exothermic reaction front through a hole in the barrier was investigated for different thermophysical characteristics of the plate and different geometric dimensions of the hole. Depending on the parameters of the plate, the minimum critical diameter of the hole required for the propagation of the combustion wave in the sample was determined as a function of plate parameters.
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