Email this article Modifying effect of rotational forces on the mechanism of the processes of SHS in metallothermal systems during the synthesis
- Authors: Ksandopulo G.I.1
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Affiliations:
- Institute of Problems in Combustion
- Issue: Vol 14, No 1 (2021)
- Pages: 89-95
- Section: Articles
- URL: https://journal-vniispk.ru/2305-9117/article/view/286613
- DOI: https://doi.org/10.30826/CE21140111
- ID: 286613
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Abstract
The mechanism of the modifying effect of rotational forces on the structure of the SHS-wave (SHS — self-propagating high-temperature synthesis) front in a cylindrical reactor with a compressed aluminothermic mixture rotating around a vertical axis is presented. It is shown that under the action of centrifugal forces, the particles of the reduced metal produced in the reaction zone of the SHS-wave move to the region ahead of the wave front and initiate new ignition sites in the fresh mixture, thus increasing the propagation velocity of the SHS-wave. This process opens up the possibilities for the synthesis of new nonequilibrium inorganic compounds with high temperature stability and a set of useful properties. As an example, the modifying effect of the addition of inorganic radicals (0.036% Al20B4O36) on the crystallization of the silumin melt with a significant decrease in the size of crystals in the cooled melt is demonstrated.
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About the authors
Georgy I. Ksandopulo
Institute of Problems in Combustion
Author for correspondence.
Email: ksand@inbox.ru
Doctor of Science in Chemistry, Professor, Honorary Director
Kazakhstan, 172, Bogenbay Batyr St., Almaty, 050012References
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