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Fizika Goreniya i Vzryva, 2023, Volume 59, Issue 4, Pages 85–92
DOI: https://doi.org/10.15372/FGV2022.9272 (Mi fgv963) 		 
This article is cited in 1 scientific paper (total in 1 paper)

Initiation of nanothermites by electric spark

A. Yu. Dolgoborodovabc, B. D. Yankovskiia, P. V. Arsenova, S. Yu. Anan'eva, L. I. Grishinac, G. E. Val'yanoa, T. I. Borodinaa, G. S. Vakorinaa

a Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, Russia
b N.N. Semenov Federal Research Center for Chemical Physics Russian Academy of Sciences, Moscow
c National Engineering Physics Institute "MEPhI", Moscow
Citations (1)
DOI: https://doi.org/10.15372/FGV2022.9272
Abstract: Electrospark initiation of thermite mixtures based on nanosized powders of aluminum and copper oxide has been studied. Data on the effect of the energy of an electric spark discharge on the ignition delay have been obtained. When initiating long cylindrical samples of mixtures with a low-current spark, two types of unsteady combustion were observed. The first type is characterized by an exponential nature of the establishment of a constant burning rate. The second type is characterized by regions with incomplete reaction along the main direction of propagation. To obtain stationary modes of a thermite mixture with a minimum ignition delay time, it is necessary to use a discharge with energy of more than 5 mJ per 1 mm$^2$ mixture surface.
Keywords: thermite compositions, nanothermites, electrospark initiation, combustion, energy density.
Funding agency Grant number
Ministry of Science and Higher Education of the Russian Federation 075-01056-22-00
FFZE-2022-007
Received: 29.11.2022
Revised: 14.12.2022
English version:
Combustion, Explosion and Shock Waves, 2023, Volume 59, Issue 4, Pages 471–478
DOI: https://doi.org/10.1134/S001050822304010X
Bibliographic databases:
Document Type: Article
UDC: 662.215.4+534.222.2
Language: Russian
Citation: A. Yu. Dolgoborodov, B. D. Yankovskii, P. V. Arsenov, S. Yu. Anan'ev, L. I. Grishin, G. E. Val'yano, T. I. Borodina, G. S. Vakorina, “Initiation of nanothermites by electric spark”, Fizika Goreniya i Vzryva, 59:4 (2023), 85–92; Combustion, Explosion and Shock Waves, 59:4 (2023), 471–478
Citation in format AMSBIB
\Bibitem{DolYanArs23}
\by A.~Yu.~Dolgoborodov, B.~D.~Yankovskii, P.~V.~Arsenov, S.~Yu.~Anan'ev, L.~I.~Grishin, G.~E.~Val'yano, T.~I.~Borodina, G.~S.~Vakorina
\paper Initiation of nanothermites by electric spark
\jour Fizika Goreniya i Vzryva
\yr 2023
\vol 59
\issue 4
\pages 85--92
\mathnet{http://mi.mathnet.ru/fgv963}
\crossref{https://doi.org/10.15372/FGV2022.9272}
\elib{https://elibrary.ru/item.asp?id=54119594}
\transl
\jour Combustion, Explosion and Shock Waves
\yr 2023
\vol 59
\issue 4
\pages 471--478
\crossref{https://doi.org/10.1134/S001050822304010X}
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