Chapter 63. Characterization of Carbon-Carbon Composites by Laser Raman Spectroscopy

  1. John B. Wachtman Jr.
  1. Alexander Elkind,
  2. Michael J. Koczak and
  3. Linda S. Schadler

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314500.ch63

Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - A: Ceramic Engineering and Science Proceedings, Volume 15, Issue 4

Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - A: Ceramic Engineering and Science Proceedings, Volume 15, Issue 4

How to Cite

Elkind, A., Koczak, M. J. and Schadler, L. S. (1994) Characterization of Carbon-Carbon Composites by Laser Raman Spectroscopy, in Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - A: Ceramic Engineering and Science Proceedings, Volume 15, Issue 4 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314500.ch63

Author Information

  1. Department of Materials Engineering, Drexel University Philadelphia, PA 19104

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1994

ISBN Information

Print ISBN: 9780470375327

Online ISBN: 9780470314500

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Keywords:

  • laser raman spectroscopy;
  • carbon-carbon;
  • graphitization;
  • graphitic

Summary

Laser Raman Spectroscopy (LRS) is a powerful technique for studying the structure of materials and for measuring strain at a micron level resolution. LRS was utilized for microstrain analysis in carbon-carbon (CC) composites and for characterization. First order Raman spectra corresponding to carbon fibers and carbon matrices were found to be clearly distinguishable. The graphitic nature of the fiber and matrix material was quantified and compared. Strain measurements were taken in both the fiber and the matrix under bending conditions and thermal exposure conditions. Distribution of the strain along fibers in carbon prepreg was also evaluated. In summary, LRS is an innovative approach for evaluating the strain distribution and degree of graphitization in CC composites.