Email this article The formation of nanowhiskers in syntactic foam containing tungsten under nanosecond flow of relativistic electrons
- Authors: Milekhin Y.M.1, Sadovnichii D.N.1, Sheremetyev K.Y.1, Kalinin Y.G.2, Kazakov E.D.2,3, Markov M.B.4
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Affiliations:
- Federal Center of Dual Use Technologies Soyuz
- National Research Centre "Kurchatov Institute"
- National Research University Moscow Power Engineering Institute
- Institute for Applied Mathematics of the Russian Academy of Sciences
- Issue: Vol 487, No 2 (2019)
- Pages: 159-163
- Section: Chemistry
- URL: https://journals.eco-vector.com/0869-5652/article/view/15470
- DOI: https://doi.org/10.31857/S0869-56524872159-163
- ID: 15470
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Abstract
The results of experimental studies of the nanowhiskers formation under the influence of relativistic electron beams of nanosecond duration on syntactic foam containing tungsten are presented. We demonstrated effects which observed after a single impact of relativistic electron beams with a flux density of 230-240 J/cm2 and a total pulse duration of 150 ns. The spheres with diameter of more than 40 µm are destroyed in irradiated syntactic foam. Filamental structure is formed on the surface of such spheres. Its length is up to 10 µm and a diameter of about 100 nm. The complex kinetics substance expansion from the irradiated surface was found out. The speeds of gas-plasma formations expansion reached ~ 13 km/s. It was found that nanowhiskers are not formed near the emission “crater” from syntactic foam, where the duration of the mechanical pressure pulse is minimal and close to the duration of the relativistic electron beam impact.
About the authors
Yu. M. Milekhin
Federal Center of Dual Use Technologies Soyuz
Email: soyuz@fcdt.ru
Academician of the Russian Academy of Sciences
Russian Federation, 42, Akademika Zhukova street, Dzerzhinskii, Moscow oblast, 140090D. N. Sadovnichii
Federal Center of Dual Use Technologies Soyuz
Author for correspondence.
Email: soyuz@fcdt.ru
Russian Federation, 42, Akademika Zhukova street, Dzerzhinskii, Moscow oblast, 140090
K. Yu. Sheremetyev
Federal Center of Dual Use Technologies Soyuz
Email: soyuz@fcdt.ru
Russian Federation, 42, Akademika Zhukova street, Dzerzhinskii, Moscow oblast, 140090
Yu. G. Kalinin
National Research Centre "Kurchatov Institute"
Email: soyuz@fcdt.ru
Russian Federation, 1, Kurchatov square, Mosсow, 123182
E. D. Kazakov
National Research Centre "Kurchatov Institute"; National Research University Moscow Power Engineering Institute
Email: soyuz@fcdt.ru
Russian Federation, 1, Kurchatov square, Mosсow, 123182; 14, Krasnokazarmennay street, Moscow,111250
M. B. Markov
Institute for Applied Mathematics of the Russian Academy of Sciences
Email: soyuz@fcdt.ru
Russian Federation, 4, Miusskaya square, Moscow, 125047
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