Chapter 43. Carbon Coating of Ceramic Materials by Pyrolysis of Polymeric Based Systems

  1. John B. Wachtman Jr.
  1. Edmund H. Moore1 and
  2. Kimberly Andrews2

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314555.ch43

Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - B: Ceramic Engineering and Science Proceedings, Volume 15, Issue 5

Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - B: Ceramic Engineering and Science Proceedings, Volume 15, Issue 5

How to Cite

Moore, E. H. and Andrews, K. (1994) Carbon Coating of Ceramic Materials by Pyrolysis of Polymeric Based Systems, in Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - B: Ceramic Engineering and Science Proceedings, Volume 15, Issue 5 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314555.ch43

Author Information

  1. 1

    WL/MLLN, Wright-Patterson Air Force Base WPAFB OH 45433–32817

  2. 2

    Department of Mechanical and Materials Engineering Wright State University, Fairborn OH 45435

Publication History

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

ISBN Information

Print ISBN: 9780470375334

Online ISBN: 9780470314555

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Keywords:

  • sapphire fibers;
  • polyarylacetylene based resin system;
  • carbonaceous coatings;
  • ceramic fibers;
  • electron microscopy

Summary

Sapphire fibers and 3-D Nextel™ 440 preforms were coated with either a phenolic or a polyarylacetylene (PAA) based resin system. The pyrolysis of these polymeric based resin systems, in an inert environment, to form thin carbonaceous coatings on ceramic fibers has been investigated with regard to two variables (heating atmosphere and heating schedule). Coatings have been characterized by both optical and electron microscopy to evaluate the viability of this technique. Although this work is quite preliminary, good coatings on the Nextel™ 440 fibers (mullite) were obtained with the PAA based resin system, however, good coatings were not obtained on alumina fibers because the PAA resin based system does not wet and coat alumina. Moreover, good coatings were not obtained with the phenolic based resin system due to a combination of surface tension, process optimization and system limitations. Several issues regarding this carbon coating process will be discussed.