Chapter 57. Pyrolysis of Titanium Metal Filled Poly(Siloxane) Preceramic Polymers: Effect of Atmosphere on the Chemistry of Titanium Transformation.

  1. John B. Wachtman Jr.
  1. S. H. Yu1,
  2. R. E. Riman1,
  3. S. C. Danfortht1,
  4. R. Y. Leung2 and
  5. S. T. Gonczy2

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314500.ch57

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

Yu, S. H., Riman, R. E., Danfortht, S. C., Leung, R. Y. and Gonczy, S. T. (1994) Pyrolysis of Titanium Metal Filled Poly(Siloxane) Preceramic Polymers: Effect of Atmosphere on the Chemistry of Titanium Transformation., 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.ch57

Author Information

  1. 1

    Center for Ceramic Research, P.O. Box 909, Rutgers University, Piscataway, NJ 08855-0909

  2. 2

    AlliedSignal Inc., P. O. Box 5016, Des Plaines, IL 60017-5016

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:

  • consequence;
  • dense ceramic;
  • preceramic;
  • porous;
  • thermodynamic

Summary

The pyrolysis of Ti metal filled poly(siloxane) preceramic polymers heated at 1350°C in N2, Ar, and NH3, was evaluated in terms of the effect of pyrolysis atmosphere on the chemistry of the Ti transformation product. In NH3, the Ti particles react with the atmosphere to form nearly stoichiometric TiN. In Ar, the Ti particles react with either gaseous hydrocarbon, i.e., methane, or carbon pyrolysis products of the poly(siloxane), to form non-stoichiometric TiC. Finally, in N2, the Ti particles react with carbon species from the poly(siloxane) and the nitrogen atmosphere, to form a TiC/TiN solid solution.