Combustion of Titanium Oxide Based Thermite Systems with a Complex Reducing Agent and an Energy Additive under the Influence of Overload

The laws and mechanism of combustion of TiO 2 based thermite systems with a complex reducing agent (Al and Ca) under the influence of overload are revealed. The thermite system includes a basic composition whose combustion products are target elements (Ti, Al, Nb, and Cr) and a high-energy additive...

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Bibliographic Details
Published in:Combustion, explosion, and shock waves explosion, and shock waves, 2019-11, Vol.55 (6), p.671-677
Main Authors: Yukhvid, V. I., Andreev, D. E., Ikornikov, D. M., Sanin, V. N., Sachkova, N. V., Kovalev, I. D.
Format: Article
Language:English
Subjects:
Aluminum oxide
Burning rate
Classical and Continuum Physics
Classical Mechanics
Combustion products
Composition
Control
Dynamical Systems
Engineering
High temperature
Niobium
Physical Chemistry
Physics
Physics and Astronomy
Reducing agents
Titanium dioxide
Titanium oxides
Vibration
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Summary:The laws and mechanism of combustion of TiO 2 based thermite systems with a complex reducing agent (Al and Ca) under the influence of overload are revealed. The thermite system includes a basic composition whose combustion products are target elements (Ti, Al, Nb, and Cr) and a high-energy additive (CaO 2 , Al, and Ca) for ensuring high-temperature combustion. With the introduction of an energy additive, the system acquires the ability to burn. With a sufficient content of this additive, the combustion products (Ti x Al y and Al 2 O 3 and CaO oxide solutions) can melt. As the fraction of Ca in the base mixture composition increases, the burning rate drops and the reduction completeness of the target oxides increases. With an optimal ratio of Ca and Al in the mixture, the yield of the target elements in the ingot is close to the calculated value.
ISSN:0010-5082
1573-8345
DOI:10.1134/S0010508219060066