Chapter 25. Pressureless Sintering of Sic Whisker-Reinforced Composites

  1. John B. Wachtman Jr.
  1. M. D. Sacks,
  2. H. W. Lee and
  3. O. E. Rojas

Published Online: 28 MAR 2008

DOI: 10.1002/9780470310496.ch25

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

Sacks, M. D., Lee, H. W. and Rojas, O. E. (1988) Pressureless Sintering of Sic Whisker-Reinforced Composites, 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.ch25

Author Information

  1. Department of Materials Science and Engineering University of Florida Gainesville, FL 32611

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:

  • indentation;
  • thermal expansion;
  • mercury intrusion;
  • metallographic;
  • ultrasonication

Summary

Al2O3/SiC whisker and Al2O3/ZrO2/SiC whisker compacts with high green density (66–69%) and homogeneous microstructure were prepared by suspension processing. Procedures for optimizing particle/whisker codispersion and subsequent consolidation by slip casting are described. Although densification is severely inhibited by Sic whiskers, compacts prepared by suspension processing show significantly higher sintered densities compared to dry-pressed samples. Suspension-processed samples containing 15 vol% whiskers could be pressureless sintered to relative densities in the range 93–99%.