Chapter 38. Mechanical Properties of Laminated Ceramic Composites in Alumina- and Zirconia- Based Systems

  1. John B. Wachtman Jr.
  1. C. J. Russo,
  2. M. P. Harmer,
  3. H. M. Chan and
  4. G. A. Miller

Published Online: 26 MAR 2008

DOI: 10.1002/9780470314234.ch38

Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 9/10

Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 9/10

How to Cite

Russo, C. J., Harmer, M. P., Chan, H. M. and Miller, G. A. (1993) Mechanical Properties of Laminated Ceramic Composites in Alumina- and Zirconia- Based Systems, in Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314234.ch38

Author Information

  1. Materials Science Dept., Lehigh University, Bethlehem, PA 18015

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1993

ISBN Information

Print ISBN: 9780470375273

Online ISBN: 9780470314234

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Keywords:

  • indentation;
  • toughness-curve (T-curve);
  • transformation;
  • deviation;
  • microstructures

Summary

Trilayer laminated composites were produced consisting of a high strength surface layer on a high toughness bulk material. Results for (a) an alumina + 20 vol% aluminum titanate (AAT20) system, and (b) a zirconia- based system showed that for a suitable thickness surface layer, the composite displayed high strength for all indentation flaw sizes. This indicates that the trilayer design was capable of achieving high toughness, without the usual accompanying reduction in strength. A toughness-curve (T-curve) model based on regions of constant closure pressure acting in the crack wake successfully accounted for the experimental strength results.