Investigation of the influence of the direction of the basal planes in a carbon frame and a metal composite material of the Al–C system on the temperature coefficient of linear expansion

Nyafkin A.N., Kosolapov D.V., Zhabin A.N.
UDC
669.018.95
DOI
10.18577/2307-6046-2023-0-10-35-42
Article PDF (Russian) (728.78 KB)
How to cite
Nyafkin A.N., Kosolapov D.V., Zhabin A.N. Investigation of the influence of the direction of the basal planes in a carbon frame and a metal composite material of the Al–C system on the temperature coefficient of linear expansion // Proceedings of VIAM. 2023. No. 10. DOI: 10.18577/2307-6046-2023-0-10-35-42. URL: https://test.viam.ru/en/journal/2023/10/4
Keywords
carbon material, cast aluminum alloy, metal composite material, vacuum-compression impregnation, basal planes, temperature coefficient of linear expansion
Abstract

A porous carbon material and a metal composite material (MCM) based on an aluminum casting alloy of the Al–Si–Cu system containing 79±2 % (vol.) carbon, obtained using the vacuum-compression impregnation technology, have been studied. A study of the structure of MCM was carried out, the density, volumetric filling and temperature coefficients of linear expansion (TCLE) of the carbon frame and MCM were measured in the temperature range from 20 to 200 °C. It has been established that depending on the direction of the basal planes, the TCLE value decreases by 30–35 % at the carbon frame and by 15–20 % at MCM.

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