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Thermal conductivity of the pine-biocarbon-preform/copper composite

Parfen’eva, L. S. and Orlova, T. S. and Smirnov, B. I. and Smirnov, I. A. and Misiorek, H. and Jezowski, A. and Faber, K. T. (2010) Thermal conductivity of the pine-biocarbon-preform/copper composite. Physics of the Solid State, 52 (7). pp. 1348-1355. ISSN 1063-7834.

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The thermal conductivity of composites of a new type prepared by infiltration under vacuum of melted copper into empty sap channels (aligned with the sample length) of high-porosity biocarbon preforms of white pine tree wood has been studied in the temperature range 5–300 K. The biocarbon preforms have been prepared by pyrolysis of tree wood in an argon flow at two carbonization temperatures of 1000 and 2400°C. From the experimental values of the composite thermal conductivities, the fraction due to the thermal conductivity of the embedded copper is isolated and found to be substantially lower than that of the original copper used in preparation of the composites. The decrease in the thermal conductivity of copper in the composite is assigned to defects in its structure, namely, breaks in the copper filling the sap channels, as well as the radial ones, also filled by copper. A possibility of decreasing the thermal conductivity of copper in a composite due to its doping by the impurities present in the carbon preform is discussed.

Item Type:Article
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Faber, K. T.0000-0001-6585-2536
Additional Information:© 2010 Pleiades Publishing, Ltd. Original Russian Text © L.S. Parfen’eva, T.S. Orlova, B.I. Smirnov, I.A. Smirnov, H. Misiorek, A. Jezowski, K.T. Faber, 2010, published in Fizika Tverdogo Tela, 2010, Vol. 52, No. 7, pp. 1262–1268. Received October 12, 2009; in final form, December 3, 2009. We are grateful to D. Heznandez Maldonado for assistance in the SEM characterization of the structure of the C/Cu samples. This study was supported by the Russian Foundation for Basic Research (project no. 07-03-91353 NNF_a) and the Presidium of the Russian Academy of Sciences (programs P-03 and P-27). The financial support for K.T.F. from the U.S. National Science Foundation under grant DMR-0710630 is gratefully acknowledged.
Funding AgencyGrant Number
Russian Foundation for Basic Research07-03-91353 NNF_a
Presidium of the Russian Academy of SciencesP-03
Presidium of the Russian Academy of SciencesP-27
Issue or Number:7
Record Number:CaltechAUTHORS:20140715-080530348
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:47203
Deposited By: Tony Diaz
Deposited On:15 Jul 2014 16:12
Last Modified:03 Mar 2020 13:01

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