Investigation of influence of silicon carbide fractional composition on thermal conductivity of composite material based on aluminium alloy

Nyafkin A.N., Loshinin U.V., Kurbatkina E.I., Kosolapov D.V.
UDC
669.018.95
DOI
10.18577/2307-6046-2019-0-11-53-59
Article PDF (Russian) (605.19 KB)
How to cite
Nyafkin A.N., Loshinin U.V., Kurbatkina E.I., Kosolapov D.V. Investigation of influence of silicon carbide fractional composition on thermal conductivity of composite material based on aluminium alloy // Proceedings of VIAM. 2019. No. 11. DOI: 10.18577/2307-6046-2019-0-11-53-59. URL: https://test.viam.ru/en/journal/2019/11/6
Keywords
vacuum compression impregnation, highly filled metal composite material, aluminum alloy, silicon carbide, thermal conductivity, thermophysical properties.
Abstract

In work the metal composite material on the basis of the aluminum foundry alloy of the AK7 brand containing 65±1 vol. % silicon carbide was developed and investigated and obtained using the technology of vacuum-compression impregnation. Porous billets with different fractional composition of silicon carbide were obtained by cold compaction followed by impregnation with aluminum alloy melt. Samples were made for the study of thermal conductivity and heat capacity of a composite material with different fractional composition of silicon carbide. Measurements of the characteristics of the thermophysical properties – heat capacity, thermal conductivity and thermal diffusivity in the temperature range from -100 to +400°C – of a composite material with different fractional composition of silicon carbide were carried out.

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