THERMOPHYSICAL PROPERTIES OF CARBON-CARBON GRAPHITE-FOAM BASED MATERIALS

A. S. Tikhomirov; N. E. Sorokina; A. P. Malakho; O. N. Shornikova; S. V. Filimonov; V. V. Avdeev

doi:10.17073/1683-4518-2016-2-16-19

THERMOPHYSICAL PROPERTIES OF CARBON-CARBON GRAPHITE-FOAM BASED MATERIALS

A. S. Tikhomirov, N. E. Sorokina, A. P. Malakho, O. N. Shornikova, S. V. Filimonov, V. V. Avdeev

https://doi.org/10.17073/1683-4518-2016-2-16-19

Full Text:

Abstract

Laser-flash method and thermal analysis were used to determine the heat conductivity and linear thermal expansion coefficient for the low-density carbon-carbon materials based both on the graphite-foam of two types differing by the graphite matrix defective factor and on the pyrolized carbon. It is shown that the thermal conductivity is mostly affected by the density after compression but not by the carbon components ratio. The carbon-carbon material based on electrochemical graphite-foam has a low thermal conductivity λ = 0,5‒2,0 W/(m·K) in a wide temperature range (30‒900 °С) whereas the low thermal conductivity is inherent in the conventional graphite-foam material at high temperatures only.

Keywords

graphite-foam, carbon-carbon materials, heat conductivity, strength,

About the Authors

A. S. Tikhomirov

Московский государственный университет имени М. В. Ломоносова, Москва
Russian Federation

N. E. Sorokina

Russian Federation

A. P. Malakho

Московский государственный университет имени М. В. Ломоносова; Институт новых углеродных материалов и технологий, Москва
Russian Federation

O. N. Shornikova

S. V. Filimonov

V. V. Avdeev

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Supplementary files

For citation: Tikhomirov A.S., Sorokina N.E., Malakho A.P., Shornikova O.N., Filimonov S.V., Avdeev V.V. THERMOPHYSICAL PROPERTIES OF CARBON-CARBON GRAPHITE-FOAM BASED MATERIALS. NOVYE OGNEUPORY (NEW REFRACTORIES). 2016;(2):16-19. https://doi.org/10.17073/1683-4518-2016-2-16-19

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