Enhanced Combustion Properties of Al-Si Eutectic Alloy in Energetic Mixtures
Ketegenov T. Vongay I. Chervyakova O. Kalmuratova B. Kononov A. Kamunur K. Nadirov R.
October 2024Multidisciplinary Digital Publishing Institute (MDPI)
Materials
2024#17Issue 19
This study investigates the feasibility of using an Al-Si eutectic alloy as a reactive fuel in energetic mixtures. Al-Si eutectic alloy powders were obtained from secondary resources and ground to a particle size of less than 100 μm. We examined these powders’ burning characteristics and thermal properties compared to pure Al powder. Results showed that the burning rate of energetic mixtures containing Al-Si eutectic alloys was 1.5 to 2.0 mm/s higher than those with pure Al. Additionally, the activation energy of pure PTFE was reduced from 81.29 kJ/mol to 61.75 kJ/mol when the Al-Si alloy was added. The formation of oxides, carbides, and fluorides in the combustion products of Al-Si-based mixtures significantly influenced their thermodynamics.
Al-Si eutectic alloy , aluminum powder , burning rate , energetic mixture , thermal decomposition
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Institute of Combustion Problems, Bogenbay batyr street 172, Almaty, 050012, Kazakhstan
LLP “AlmaDK”, Almaty, 041605, Kazakhstan
Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Institute of Combustion Problems
LLP “AlmaDK”
Faculty of Chemistry and Chemical Technology
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