Chapter 15. Processing of Porous Tib2 - ZrO2 Composites by Combustion Synthesis

  1. John B. Wachtman Jr.
  1. S. B. Bhaduri and
  2. R. Radhakrishnan

Published Online: 26 MAR 2008

DOI: 10.1002/9780470313954.ch15

Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 7/8

Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 7/8

How to Cite

Bhaduri, S. B. and Radhakrishnan, R. (1994) Processing of Porous Tib2 - ZrO2 Composites by Combustion Synthesis, in Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313954.ch15

Author Information

  1. Department of Metallurgy & Mining engineering University of Idaho, Moscow, ID 83843

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1994

ISBN Information

Print ISBN: 9780470375174

Online ISBN: 9780470313954

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Keywords:

  • microscopy;
  • microstructure;
  • combustion;
  • transformation;
  • aluminum

Summary

Porous titanium diboride (TiB2) - zirconia (ZrO2) composites were produced by the combustion synthesis process. The starting materials contained various ratios of Ti, B and partially stabilized 2302 (Y2O3) powders. Compacted pellets could be ignited and the exothermic reactions were self sustaining. With the increase in ZrO2 content, the reaction was more controlled. The as-processed materials were characterized by X-Ray and scanning electron microscopy. ZrO2 remained as the tetragonal phase (t-ZrO2) in the microstructure. These preliminary results indicate that it may be possible to produce transformation toughened TiB2 matrix composites by the combustion synthesis process.