Microscopic thermal characterization of C/C composites

Abstract : Both carbon fibers and matrix of C/C composites are made of graphite nano-elements, whose texture rules the local thermal properties, and consequently the macroscopic ones of the composite. Thus, precise characterizations of fibers and matrix are required to improve these composites and to optimize their processes. It has been demonstrated that photoreflectance microscopy is able to provide the thermal properties measurement of complex materials such as graphite at a microscopic scale. Nevertheless, additional efforts are necessary to remove the measurement artifacts, encountered when characterizing C/C composites local properties.
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J Jumel, F Lepoutre, Franck Enguehard, D Rochais, M Cataldi. Microscopic thermal characterization of C/C composites. 4th International Conference on High Temperature Ceramic Matrix Composites (HT-CMC4),, Oct 2001, Munich, Germany. High Temperature Ceramic Matrix Composites. 〈hal-01287492〉

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