Chapter 12. Microstructure and Interface Characteristics of Alumina-Zirconia Composites

  1. John B. Wachtman Jr.
  1. R. F. Yttergren,
  2. Z.-K. Liu and
  3. D. J. Rowcliffe

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314876.ch12

Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 17, Issue 4

Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 17, Issue 4

How to Cite

Yttergren, R. F., Liu, Z.-K. and Rowcliffe, D. J. (1996) Microstructure and Interface Characteristics of Alumina-Zirconia Composites, in Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 17, Issue 4 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314876.ch12

Author Information

  1. Materials Science and Engineering Royal Institute of Technology, 100 44 Stockholm, Sweden

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1996

ISBN Information

Print ISBN: 9780470375433

Online ISBN: 9780470314876

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Keywords:

  • alumina-zirconia laminated composites;
  • warm pressing;
  • sintering tapes;
  • transmission electron microscopy;
  • interfacial zone

Summary

Alumina-zirconia laminated composites have been fabricated by warm pressing and sintering tapes. Such composites contain large residual stresses and the fracture mode indicates strong bonding between the layers. Transmission electron microscopy studies of the interfaces show that there is no interdiffusion or second phase present. The boundary consists of strongly interlocked grains. In the zirconia a 2μm interfacial zone tranforms due to the large residual stresses. Constraint of the transformation is thought to lead to clamping forces responsible for the strong interface behaviour.