Chapter 61. Fabrication and Properties of Uniaxially and Hot-Pressed Al2O3-ZrO2 Composites

  1. John B. Wachtman Jr.
  1. Tuija Rytkönen1,
  2. Kari Keskinen1 and
  3. Pekka Lintula2

Published Online: 28 MAR 2008

DOI: 10.1002/9780470310588.ch61

A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10

A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10

How to Cite

Rytkönen, T., Keskinen, K. and Lintula, P. (1989) Fabrication and Properties of Uniaxially and Hot-Pressed Al2O3-ZrO2 Composites, in A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310588.ch61

Author Information

  1. 1

    Helsinki University of Technology Vuorimiehentie 2 K, SF-12150 Espoo, Finland

  2. 2

    Tampere University of Technology P.O. Box 527, SF-33101 Tampere, Finland

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1989

ISBN Information

Print ISBN: 9780470374870

Online ISBN: 9780470310588

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Keywords:

  • commercial powders;
  • particle size;
  • shrinkage;
  • optical dilatometer;
  • weibull modulus

Summary

The properties of Al2O3-ZrO2 composites were studied in the composition range Al2O3 = 0, 20, 40, 60, 80, and 100 vol% starting from commercial powders with approximately the same particle size. Shrinkage behavior of uniaxially pressed compacts was followed by an optical dilatometer. Pure end-members densified faster to full density and the addition of the other end-member impaired densification. Scanning electron microscopy showed that the dispersion homogeneity of these composites was good with no large agglomerates present. The achieved grain sizes were relatively fine. Flexural strength was measured with 4-point bending and the Weibull modulus reached generally a value over 10.