Chapter 41. Interfacial Diffusion and Reaction Mechanisms in Coated Fiber Reinforced Glass-Ceramic Composites

  1. John B. Wachtman Jr.
  1. Ellen Y. Sun1,
  2. Steven R. Nutt1 and
  3. John J. Brennan2

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314555.ch41

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

Sun, E. Y., Nutt, S. R. and Brennan, J. J. (1994) Interfacial Diffusion and Reaction Mechanisms in Coated Fiber Reinforced Glass-Ceramic Composites, 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.ch41

Author Information

  1. 1

    Division of Engineering, Brown University, Providence, RI 02912

  2. 2

    United Technologies Research Center, East Hartford, CT 06108

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:

  • fiber-matrix interfaces ii;
  • glass-ceramic composites;
  • high-temperature mechanical properties;
  • barium magnesium aluminosilicate matrix;
  • fiber coatings

Summary

Glass-ceramic composites with improved high-temperature mechanical properties have been produced by incorporating continuous SiC fibers into a barium magnesium aluminosilicate (BMAS) matrix. Control of the fiber-matrix interface was achieved by a dual layer coating of SiC/BN(C) applied to the fibers by CVD. Interfacial microstructures in the composites were characterized using HRTEM. Nano-scale dual silica-rich and carbon-rich layers were observed at the BN/fiber interface under certain conditions. Interfacial diffusion and reaction mechanisms were studied by investigating composites with different coating thickness and thermal histories.