Chapter 49. Oxidation Modes of Non-Oxide Particles in Oxide Matrix Composites

  1. John B. Wachtman Jr.
  1. Youren Xu,
  2. Gaoling Fu and
  3. Avigdor Zangvil

Published Online: 26 MAR 2008

DOI: 10.1002/9780470314821.ch49

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

Xu, Y., Fu, G. and Zangvil, A. (1996) Oxidation Modes of Non-Oxide Particles in Oxide Matrix Composites, 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.ch49

Author Information

  1. University of Illinois at Urbana-Champaign, Urbana, IL 61801

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:

  • diffusivity;
  • oxidation;
  • characterize;
  • diffusing;
  • rationalizing

Summary

Oxidation studies were conducted at 1200°C and 1400°C on mullite/zirconia/SiC-platelet composites containing 10 vol.% SiC platelets and various amounts of ZrO2. Conventional mass change measurements, as well as direct microscopic measurements of oxide layers on particles at various depths, were accomplished. They showed that adding ZrO2 to the matrix will significantly lower oxidation resistance of the composites due to the high oxygen diffusivity in the zirconia phase. Measured oxide thicknesses were rationalized, based on a theoretical model involving ratios of oxygen diffusivities in the matrix and the SiO2 layer.