Chapter 49. Characterization of Blackglas™/Bn/Nicalon™ Composites

  1. J. P. Singh
  1. Gang Qi,
  2. W. Roger Cannon and
  3. Stephen C. Danforth

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294444.ch49

Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 18, Issue 4

Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 18, Issue 4

How to Cite

Qi, G., Cannon, W. R. and Danforth, S. C. (1997) Characterization of Blackglas™/Bn/Nicalon™ Composites, in Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 18, Issue 4 (ed J. P. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294444.ch49

Author Information

  1. Dept. of Ceramics, Rutgers University Scott Campbell Allied Signal Corp, Des Plaines IL

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1997

ISBN Information

Print ISBN: 9780470375532

Online ISBN: 9780470294444

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Keywords:

  • infiltration;
  • oxidation;
  • fiber/matrix interface;
  • microcracks;
  • composites

Summary

Blackglas™/BN/Nicalon™ Composites were fabricated under two different pyroiysis temperatures (900° and 1200°C) and infiltration cycles (5x and 8x). Some specimens were oxidized at 600°C in flowing air for 100 and 1000 hours in air. The tensile results show that the strength of the composites are reduced almost 60% of as-prepared composites after 1000 hours of oxidation. In general, pyroiysis temperatures and infiltration cycles had little effect on composite's long term oxidation behavior, but manifest themselves in the short term oxidation (100 hours). In this case, 1200°C pyroiysis seems to slow down the oxidation and the composites maintained the ultimate strength when compared to as prepared composites.