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Thermal conductivity of the SiC/Si biomorphic composite, a new cellular ecoceramic |
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| Authors: | L S Parfen’eva T S Orlova N F Kartenko N V Sharenkova B I Smirnov I A Smirnov H Misiorek A Jezowski F M Varela-Feria J Martinez-Fernandez A R de Arellano-Lopez |
| Institution: | (1) Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021, Russia;(2) Institute of Low-Temperature and Structural Research, Polish Academy of Sciences, Wroclaw, 50-950, Poland;(3) Universidad de Sevilla, Seville, 41080, Spain |
| Abstract: | The thermal conductivity κ and electrical resistivity ρ of a SiC/Si biomorphic composite were measured at temperatures T = 5–300 K. The composite is a cellular ecoceramic fabricated by infiltrating molten Si into the channels of a cellular carbon matrix prepared via pyrolysis of wood (white eucalyptus) in an argon ambient. The κ(T) and ρ(T) relations were measured on a sample cut along the direction of tree growth. The experimental results obtained are analyzed. |
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