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This article is cited in 2 scientific papers (total in 2 papers)
Electrothermal explosion of a titanium – soot mixture under quasistatic compression. III. The effect of quasistatic compression pressure
V. A. Shcherbakov, A. V. Shcherbakov Merzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences Chernogolovka, Chernogolovka, 142432, Russia
Abstract:
The results of diagnostics of thermal conditions of an electric thermal explosion (ETE) of a mixture of titanium and soot powders under quasistatic compression are presented. The effect of quasistatic compression pressure on the thermal and electrical parameters of an ETE is studied. It is shown that nonuniform heating occurs at low pressure, while uniform heating occurs at high pressure. A criterion is proposed for determining the thermal regime of the ETE of a heterogeneous mixture, based on the ratio of the exothermic interaction times and the electric current variation during a thermal explosion. It is established that the dependence of the electric current variation rate on time has one peak when the sample is heated nonuniformly and two peaks when it is heated uniformly. An abnormally low effective flash point of the heterogeneous titanium – soot mixture is explained.
Keywords:
ETE, thermal regime, ignition, diagnostics, titanium carbide.
Received: 13.11.2018 Revised: 17.01.2019 Accepted: 20.02.2019
Citation:
V. A. Shcherbakov, A. V. Shcherbakov, “Electrothermal explosion of a titanium – soot mixture under quasistatic compression. III. The effect of quasistatic compression pressure”, Fizika Goreniya i Vzryva, 55:6 (2019), 65–69; Combustion, Explosion and Shock Waves, 55:6 (2019), 692–696
Linking options:
https://www.mathnet.ru/eng/fgv634 https://www.mathnet.ru/eng/fgv/v55/i6/p65
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