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Imaging of the interface between fibers and matrix in the yarns of three-directional carbon-carbon composites by a photoacoustic method

Abstract : The performance of composite materials such as three-directional carbon-carbon composites depends greatly on the quality of the interface between the fibers and the matrix in the yarns. A set-up was built to examine the quality of this interface using a thermal method: photoacoustic method by photodeformation. Comparison of photoacoustic and electron beam microscope images, on the same area of a sample confirms that fibers 5 to 7 µm in diameter can be seen with the set-up. Moreover, the thermal phase images show discrepancies around some fibers which could be due to abnormal local thermal resistances.
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https://hal-centralesupelec.archives-ouvertes.fr/hal-01287465
Contributor : Franck Enguehard <>
Submitted on : Monday, March 14, 2016 - 9:47:06 AM
Last modification on : Friday, June 26, 2020 - 2:00:04 PM

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  • HAL Id : hal-01287465, version 1

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Alain Déom, Daniel Boscher, Laurence Noirot, Franck Enguehard, Daniel Balageas. Imaging of the interface between fibers and matrix in the yarns of three-directional carbon-carbon composites by a photoacoustic method. Materials Science and Engineering: B, Elsevier, 1990, pp.135-141. ⟨hal-01287465⟩

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