Chapter 50. The Oxidation and Salt Corrosion of AN Si2N2O-ZrO2 Composite Material

  1. John B. Wachtman Jr.
  1. Maiken Heim1,
  2. Jiaxin Chen1,
  3. Colette O'Meara2 and
  4. Robert Pompe3

Published Online: 26 MAR 2008

DOI: 10.1002/9780470314821.ch50

Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A: Ceramic Engineering and Science Proceedings, Volume 17, Issue 3

Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A: Ceramic Engineering and Science Proceedings, Volume 17, Issue 3

How to Cite

Heim, M., Chen, J., O'Meara, C. and Pompe, R. (1996) The Oxidation and Salt Corrosion of AN Si2N2O-ZrO2 Composite Material, in Proceedings of the 20th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A: Ceramic Engineering and Science Proceedings, Volume 17, Issue 3 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314821.ch50

Author Information

  1. 1

    Dept. of Inorganic Chemistry, Chalmers University of Technology and University of Göteborg, S–412 96 Goteborg, Sweden

  2. 2

    Dept. of Physics, Chalmers University of Technology, S–412 96 Göteborg, Sweden

  3. 3

    Swedish Ceramic Institute, Box 5403, S–402 29 Göteborg, Sweden

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1996

ISBN Information

Print ISBN: 9780470375426

Online ISBN: 9780470314821

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Keywords:

  • concentration;
  • degradation;
  • oxidation;
  • combustion;
  • porosity

Summary

The oxidation/corrosion resistance in dry and humid environments of a low-cost, porous Si2N2O-ZrO2 composite material has been investigated. The oxidation experiments were carried out in a tube furnace in dry and humid oxygen (10% H2O). For the corrosion experiments an aerosol generator was used capable of controlling the salt concentration (NaCl) during the corrosion experiments. The extent of internal oxidation has been found to be dependent on the oxidation temperature. Very good oxidation resistance has been observed at temperatures ⩾1300°C. It was confirmed that at 1000°C oxidation occurs homogeneously throughout the specimen while at higher temperatures pore sealing occurs after the initial oxidation.