Low density heat-conducting carbon-carbon materials containing coke from 2.8 to 40 wt.% and with density varying in the range from 0.065 to 0.81 g/cm3 are prepared by uniaxial compaction of graphite foam with subsequent impregnation with an acetone solution of propargylated novolac resin and coking. It is shown that mechanical strength of specimens increases in proportion to the coke content within them in the range from 17 to 40 wt.%, and thermal conductivity is almost unchanged and is within the limits of 2.5 – 3.2 W/(m·K).
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Work was carried out with financial support of the Russian Government (Ministry of Education and Science) within the scope of measures 1.3 (Agreement for supply of a Russian Ministry of Education and Science subsidy No. 14.579.21.0028 of June 5 2014, agreement unique identifier RFMEF157914X0028).
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Translated from Novye Ogneupory, No. 2, pp. 50 – 53, February, 2017.
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Manylov, M.S., Filimonov, S.V., Shornikova, O.N. et al. Thermophysical Properties of Carbon-Carbon Materials Based on Graphite Foam. Refract Ind Ceram 58, 113–116 (2017). https://doi.org/10.1007/s11148-017-0064-5
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DOI: https://doi.org/10.1007/s11148-017-0064-5