Chapter 16. Formation of Interface Coatings on SiC and Sapphire Fibers Using Metal Doped Carboxylate-Alumoxanes

  1. Ersan Ustundag and
  2. Gary Fischman
  1. Rhonda L. Callender and
  2. Andrew R. Barron

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294567.ch16

23rd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures : A: Ceramic Engineering and Science Proceedings, Volume 20, Issue 3

23rd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures : A: Ceramic Engineering and Science Proceedings, Volume 20, Issue 3

How to Cite

Callender, R. L. and Barron, A. R. (1999) Formation of Interface Coatings on SiC and Sapphire Fibers Using Metal Doped Carboxylate-Alumoxanes, in 23rd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures : A: Ceramic Engineering and Science Proceedings, Volume 20, Issue 3 (eds E. Ustundag and G. Fischman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294567.ch16

Author Information

  1. Department of Chemistry and Department of Mechanical Engineering and Materials Science, Rice University, Houston, Texas 77005

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1999

ISBN Information

Print ISBN: 9780470375631

Online ISBN: 9780470294567

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Keywords:

  • sic;
  • hexaluminate;
  • ceramic;
  • polycrystalline;
  • versatile

Summary

Sapphire and SiC fibers have been dip-coated in aqueous and CHCl3 solutions of calcium- and lanthanum-doped carboxylate-alumoxane nanoparticles and fired up to 1400 °C to form uniform, conformal and contiguous, hexaluminate ceramic coatings (CaA112O19 and LaA111O18, respectively). Optimum solvent, dip/dry cycles, and firing sequences were determined for the formation of crack-free coatings. Both carboxylate-alumoxane and ceramic coated fibers were examined by FESEM, EPMA, and XRD. Coatings produced were stable to thermal cycling under air at temperatures of 1400 °C.