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This article is cited in 26 scientific papers (total in 26 papers)
Comparative analysis of boron powders obtained by various methods. I. Microstructure and oxidation parameters during heating
A. N. Pivkinaa, N. V. Murav'eva, K. A. Monogarova, D. B. Meerova, I. V. Fomenkovb, E. A. Skrylevac, M. Yu. Presniakovd, A. L. Vasil'evd, N. I. Shishove, Yu. M. Miloekhine a Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow, 119991, Russia
b Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, 119991, Russia
c National University of Science and Technology «MISIS», Moscow, 119049, Russia
d National Research Centre "Kurchatov Institute", Moscow, 123182, Russia
e Federal Center for Dual-Use Technologies "Soyuz", Dzerzhinsky, 140090, Russia
Abstract:
This paper describes a study of boron powders and powder compounds, obtained by various methods, including metallothermal, electrolytic, and boron hydride cracking methods. The crystal state, particle size and microstructure, presence and composition of impurities, and chemical composition of the oxide layer of boron particles are profoundly investigated. The effects of the above-mentioned characteristics on the particle oxidation parameters during heating with a constant velocity are analyzed. The determining influence of chemical composition of the particle surface layer on the initial temperature of their intense oxidation is established. It is shown that the maximum increase in the weight and heat release value during oxidation of the boron powders is almost independent of microstructural features, crystal state, and chemical composition of and oxide layer thickness of the particles, and cannot serve as indicators of completeness of boron oxidation during heating.
Keywords:
boron particles, boron production, microstructure, boron oxidation, thermal analysis.
Received: 10.07.2017 Revised: 18.08.2017
Citation:
A. N. Pivkina, N. V. Murav'ev, K. A. Monogarov, D. B. Meerov, I. V. Fomenkov, E. A. Skryleva, M. Yu. Presniakov, A. L. Vasil'ev, N. I. Shishov, Yu. M. Miloekhin, “Comparative analysis of boron powders obtained by various methods. I. Microstructure and oxidation parameters during heating”, Fizika Goreniya i Vzryva, 54:4 (2018), 73–83; Combustion, Explosion and Shock Waves, 54:4 (2018), 450–460
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https://www.mathnet.ru/eng/fgv527 https://www.mathnet.ru/eng/fgv/v54/i4/p73
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