Chapter 36. Gelcast Zirconia-Alumina Composites

  1. John B. Wachtman Jr
  1. O. O. Omatete,
  2. A. Bleier,
  3. C. G. Westmorel and
  4. A. C. Young

Published Online: 26 MAR 2008

DOI: 10.1002/9780470313848.ch36

Proceedings of the 15th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 12, Issue 9/10

Proceedings of the 15th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 12, Issue 9/10

How to Cite

Omatete, O. O., Bleier, A., Westmorel, C. G. and Young, A. C. (2008) Gelcast Zirconia-Alumina Composites, in Proceedings of the 15th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 12, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313848.ch36

Author Information

  1. Oak Ridge National Laboratory Oak Ridge, TN 37831

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1991

ISBN Information

Print ISBN: 9780470375105

Online ISBN: 9780470313848

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Keywords:

  • aqueous;
  • alumina;
  • organic;
  • agglomerates;
  • zirconia

Summary

Near net-shaped parts of zircona-alumina composites have been successfully formed by gelcasting, a technique which utilizes in situ polymerization of acrylamide monomers. The high solids loading required for gelcasting (∼S0 vol%) was obtained by controlling the pH-dependent stability of the aqueous zirconia-alumina suspensions. A strong correspondence was found among the surface charges on the particles, colloidal stability, and the maximum solids loading.