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Detonation of Ethylene– and Propylene–Oxygen Explosive Mixtures and Their Use in Detonation Spraying Technology

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Combustion, Explosion, and Shock Waves Aims and scope

Abstract

Gas detonation in ethylene– and propylene–oxygen explosive mixtures was studied over a wide range of equivalence ratio. Detonation parameters were calculated using the DETON code. The experiments were performed on an improved detonation facility in which the flow feed of the components of the explosive mixture and the intensification of deflagration-to-detonation transition (DDT) due to charge stratification was implemented in a long cylindrical channel using the systems of a CCDS2000 computerized detonation facility. Experimental data on the detonation velocity and cell size of the detonation front cell were obtained. The concentration limits of steady detonation in a cylindrical channel 26 mm in diameter were determined. Using propylene and ethylene as fuel for detonation spraying, coatings of tungsten carbide with a cobalt binder and alumina were obtained and their properties were investigated. Coatings based on propylene with stratification of the explosive mixture charge are comparable in properties and performance to coatings sprayed by dual-fuel (acetylene/propane) technology, which allows propylene to be considered as an acceptable fuel for detonation spraying.

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Authors and Affiliations

  1. Lavrent’ev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia

    D. K. Rybin, V. Yu. Ul’yanitskii & I. S. Batraev

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  1. D. K. Rybin
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  2. V. Yu. Ul’yanitskii
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  3. I. S. Batraev
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Correspondence to D. K. Rybin.

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Rybin, D.K., Ul’yanitskii, V.Y. & Batraev, I.S. Detonation of Ethylene– and Propylene–Oxygen Explosive Mixtures and Their Use in Detonation Spraying Technology. Combust Explos Shock Waves 56, 353–360 (2020). https://doi.org/10.1134/S0010508220030120

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  • DOI: https://doi.org/10.1134/S0010508220030120

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