Chapter 13. Novel Sol-Gel Coating Techniques for Ceramic Tows: In-Situ Curing vs Reaction Bonding

  1. John B. Wachtman Jr
  1. D. A. Hazlebeck,
  2. I. Y. Glatter and
  3. H. H. Streckert

Published Online: 28 MAR 2008

DOI: 10.1002/9780470313831.ch13

Proceedings of the 15th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 12, Issue 7/8

Proceedings of the 15th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 12, Issue 7/8

How to Cite

Hazlebeck, D. A., Glatter, I. Y. and Streckert, H. H. (1991) Novel Sol-Gel Coating Techniques for Ceramic Tows: In-Situ Curing vs Reaction Bonding, in Proceedings of the 15th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 12, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313831.ch13

Author Information

  1. General Atomics San Diego, CA 92138-5608

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1991

ISBN Information

Print ISBN: 9780470375099

Online ISBN: 9780470313831

SEARCH

Keywords:

  • multifilament;
  • micrscopy;
  • polymer;
  • fibers;
  • carbide

Summary

Fiber coating provides a means of controlling the nature of the fiber-matrix interface in composite materials to ensure that toughness and strength are maintained at high temperature. Two particularly promising new liquid phase techniques for coating multifilament tows are in-situ curing and reaction bonding. A number of commercially available ceramics fibers were coated with BN, HfO2, ZrO2, Al2O3, and Y2O3 using these novel processes as well as traditional sol-gel processes. The thickness and quality of the coatings were examined using scanning electron microscopy (SEM), energy dispersive x-ray spectroscopy (EDXS), and Auger spectroscopy. Mechanical testing was performed to evaluate interaction with the fiber. The benefits and drawbacks of the new coating methods are discussed with regard to coating properties and ease of processing.