Journal
MATERIALS & DESIGN
Volume 99, Issue -, Pages 528-534Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2016.03.070
Keywords
Carbon materials; Graphite; Pyrolysis; Thermal conductivity; Biomorphic materials
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Funding
- Junta de Andalucia [PE2012-TEP862]
- Ministry of Economy and Competitiveness of the Spanish Government [MAT2013-41233-R]
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Graphitic porous carbon materials from pyrolysis of wood precursors were obtained by means of a nanosized Fe catalyst, and their microstructure and electrical and thermal transport properties investigated. Thermal and electrical conductivity of graphitized carbon materials increase with the pyrolysis temperature, indicating a relationship between the degree of graphitization and thus in crystallite size with transport properties in the resulting carbon scaffolds. Evaluation of the experimental results indicate that thermal conductivity is mainly through phonons and increases with the temperature in Fe-catalyzed carbons suggesting that the mean free path of phonons in the material is small and defect scattering dominates over phonon-phonon interactions in the range from room temperature to 800 degrees C. (C) 2016 Elsevier Ltd. All rights reserved.
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