Chapter 43. Pyrolysis Behavior of Blackglas™ Composites

  1. John B. Wachtman Jr.
  1. J. Annamalai1,
  2. W. N. Gill1,
  3. A. Tobin1,
  4. J. Madsen2 and
  5. T. M Donnellan2

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314876.ch43

Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 17, Issue 4

Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 17, Issue 4

How to Cite

Annamalai, J., Gill, W. N., Tobin, A., Madsen, J. and Donnellan, T. M. (1996) Pyrolysis Behavior of Blackglas™ Composites, in Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 17, Issue 4 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314876.ch43

Author Information

  1. 1

    Rensselaer Polytechnic Institute, Troy, NY

  2. 2

    Northrop Grumman ATDC, Bethpage, NY

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1996

ISBN Information

Print ISBN: 9780470375433

Online ISBN: 9780470314876

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Keywords:

  • preceramic polymer;
  • reaction engineering model;
  • kinetic parameters;
  • polymer infiltration cycles;
  • activation energy

Summary

Blackglas™ composites derived from a preceramic polymer are attractive structural materials that offer the potential for low-cost ceramic matrix composites. Pyrolysis process models are being developed that describe the kinetics of the transformations of the preceramic polycarbosiloxane polymer composite into the silicon oxycarbide glass composite. TGA techniques were used to formulate a lumped parameter reaction rate expression for use in a reaction engineering model of the pyrolysis process. Results for various heating rate programs were analyzed to obtain kinetic parameters, including the order of the dependence of the reaction rate on the polymer infiltration cycles and activation energy. Comparison between the pyrolyisis behavior of the composite and neat resin was made.