Chapter 67. Silicon Nitride Composites Materials with an Improved High Temperature Oxidation Resistance

  1. J. P. Singh
  1. Hagen Klemm,
  2. Mathias Herrmann and
  3. Christian Schubert

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294437.ch67

Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 18, Issue 3

Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 18, Issue 3

How to Cite

Klemm, H., Herrmann, M. and Schubert, C. (1997) Silicon Nitride Composites Materials with an Improved High Temperature Oxidation Resistance, in Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 18, Issue 3 (ed J. P. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294437.ch67

Author Information

  1. Fraunhofer-Institut for Ceramic Technologies and Sintered Materials, IKTS Dresden, Winterbergstr. 28, D-01277 Dresden, FRG

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1997

ISBN Information

Print ISBN: 9780470375495

Online ISBN: 9780470294437

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Keywords:

  • composite materials;
  • oxidation mechanism;
  • monolithic material;
  • mechanical loading;
  • x-ray diffractometry

Summary

The oxidation resistance of Si3N4 based materials at 1500°C was studied. Si3N4/SiC- and Si3N4/MoSi2-composite materials were found to obey a less severe oxidation mechanism in comparison to the monolithic Si3N4 material, with the consequence of an improved microstructural and mechanical stability after high temperature oxidation. An oxidation mechanism based on the formation of Si2ON2 instead of SiO2 is proposed to be the main reason for the different oxidation behavior of the composite materials.