Chapter 52. Boron Nitride Preceramic Polymer Studies

  1. John B. Wachtman Jr.
  1. K. J. L. Paciorek and
  2. R. H. Kratzer

Published Online: 28 MAR 2008

DOI: 10.1002/9780470310496.ch52

Proceedings of the 12th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 7/8

Proceedings of the 12th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 7/8

How to Cite

Paciorek, K. J. L. and Kratzer, R. H. (1988) Boron Nitride Preceramic Polymer Studies, in Proceedings of the 12th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 9, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310496.ch52

Author Information

  1. Ultrasystems Defense and Space Inc. Irvine, CA

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1988

ISBN Information

Print ISBN: 9780470374801

Online ISBN: 9780470310496

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Keywords:

  • uni-directionally;
  • deteriorated;
  • mechanical properties;
  • slurry;
  • flexural

Summary

Two boron nitride preceramic polymers were developed: a fusible soluble composition amenable to fiber spinning and an infusible organic solvent-soluble material suitable for preparation of BN coatings, laminating resins, and boron nitride densification. On thermal curing of the preceramic polymers in reactive or inert atmospheres, no boron containing compositions are volatilized indicating a theoretical yield of ceramic. The fully cured materials are colorless and do not undergo weight or shape changes when heated to 1000°C in nitrogen or air. Synthesis of the preceramic polymers, their transformation into boron nitride ceramics, and end item production will be discussed.