Chapter 56. Axial and Radial Coefficients of Thermal Expansion of Carbon Fibers in the 20°–430°C Temperature Range as Derived from the Thermal Expansion of 1-D-C-SiO2(B2O3) Composites

  1. John B. Wachtman Jr.
  1. E. Menessier*,
  2. J. P. Dument*,
  3. A. Geutte*,
  4. R. Pailler*,
  5. L. Rabardel and
  6. R. Naslain*

Published Online: 28 MAR 2008

DOI: 10.1002/9780470310588.ch56

A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10

A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10

How to Cite

Menessier, E., Dument, J. P., Geutte, A., Pailler, R., Rabardel, L. and Naslain, R. (1989) Axial and Radial Coefficients of Thermal Expansion of Carbon Fibers in the 20°–430°C Temperature Range as Derived from the Thermal Expansion of 1-D-C-SiO2(B2O3) Composites, in A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310588.ch56

Author Information

  1. Laboratoire de Chimie du Solide du CNRS Université de Bordeaux I 531 cours de la Libération F-33405 Talence Cedex France

*Ceramiques et composites, B.P.7, F 65460 Bazet, France

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1989

ISBN Information

Print ISBN: 9780470374870

Online ISBN: 9780470310588

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Keywords:

  • electron microscopy;
  • zirconia;
  • alumina;
  • composites;
  • X-ray diffraction

Summary

The axial and radial coefficients of thermal expansion (CTE) of HS (T300), HM (M40), and UHM (P100) carbon fibers have been computed, within the 20°–430°C temperature range, from thermal expansion measurements performed on unidirectional composites with the fibers embedded in an isotropic glassy SiO2-15 mol% B2O3 matrix. It was assumed that the elastic anisotropic constants of the fiber (E, V) remain constant and that the fibers are strongly bound to the matrix. The various CTE of the carbon fibers were found to be strongly anisotropic. At room temperature all of them are negative along the fiber axis and positive along a radial direction. Their thermal variations can be described with polynomial relations of the second order. The CTE values have been tentatively correlated with the microstructural features of the fibers.