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


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Abstract

The laws and mechanism of combustion of TiO2 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 (CaO2, 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 (TixAly and Al2O3 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.

About the authors

V. I. Yukhvid

Merzhanov Institute of Structural Macrokinetics and Materials Science

Author for correspondence.
Email: yukh@ism.ac.ru
Russian Federation, Chernogolovka, 142432

D. E. Andreev

Merzhanov Institute of Structural Macrokinetics and Materials Science

Email: yukh@ism.ac.ru
Russian Federation, Chernogolovka, 142432

D. M. Ikornikov

Merzhanov Institute of Structural Macrokinetics and Materials Science

Email: yukh@ism.ac.ru
Russian Federation, Chernogolovka, 142432

V. N. Sanin

Merzhanov Institute of Structural Macrokinetics and Materials Science

Email: yukh@ism.ac.ru
Russian Federation, Chernogolovka, 142432

N. V. Sachkova

Merzhanov Institute of Structural Macrokinetics and Materials Science

Email: yukh@ism.ac.ru
Russian Federation, Chernogolovka, 142432

I. D. Kovalev

Merzhanov Institute of Structural Macrokinetics and Materials Science

Email: yukh@ism.ac.ru
Russian Federation, Chernogolovka, 142432

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