Impregnation of Graphite with Aluminum under High Pressure
- Autores: Antanovich A.1
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Afiliações:
- Vereshchagin Institute of High-Pressure Physics, RAS
- Edição: Nº 5 (2024)
- Páginas: 97-100
- Seção: Articles
- URL: https://journals.rcsi.science/1028-0960/article/view/264389
- DOI: https://doi.org/10.31857/S1028096024050147
- EDN: https://elibrary.ru/FSYKDV
- ID: 264389
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Resumo
To impregnate graphite of the GMZ brand with liquid aluminum alloy D16, a high-pressure method and apparatus previously used for impregnating carbon frames with liquid coal pitch in the isostatic technology for the production of carbon-carbon composite materials were used. The graphite blank and the amount of aluminum alloy calculated from the initial porosity of graphite were placed in a thin-walled container, degassed in a vacuum furnace, after which the container with the contents was sealed. Thermobaric treatment was carried out at a temperature of 750°C and pressure of 100 and 200 MPa. After finishing the treatment, the density and porosity of the obtained metallographic composites, as well as their compressive strength, were determined. As a result of these thermobaric treatments, the density and compressive strength of the obtained composites increased significantly, and the porosity decreased markedly.
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Sobre autores
A. Antanovich
Vereshchagin Institute of High-Pressure Physics, RAS
Autor responsável pela correspondência
Email: antanov@hppi.troitsk.ru
Rússia, Troitsk
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