Chapter 27. Oxidation of Zrb2-Sic

  1. Mrityunjay Singh and
  2. Todd Jessen
  1. Elizabeth J. Opila1 and
  2. Michael C. Halbig2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294680.ch27

25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 22, Issue 3

25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 22, Issue 3

How to Cite

Opila, E. J. and Halbig, M. C. (2001) Oxidation of Zrb2-Sic, in 25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 22, Issue 3 (eds M. Singh and T. Jessen), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294680.ch27

Author Information

  1. 1

    Cleveland State University NASA Glenn Research Center 21000 Brookpark Rd. Cleveland, OH 44135

  2. 2

    US Army Research Laboratory NASA Glenn Research Center 21000 Brookpark Rd. Cleveland, OH 44135

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2001

ISBN Information

Print ISBN: 9780470375730

Online ISBN: 9780470294680

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Keywords:

  • spectroscopy;
  • parabolic;
  • microscopy;
  • environments;
  • zirconia

Summary

In this paper the oxidation behavior of ZrB2–20 vol% SiC is examined. Samples were exposed in stagnant air in a zirconia furnace (Deltech, Inc.) at temperatures of 1327, 1627, and 1927°C for ten ten-minute cycles. Samples were removed from the furnace after one, five, and ten cycles. Oxidized material was characterized by mass change when possible, x-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). Oxidation kinetics, oxide scale development, and matrix recession were monitored as a function of time and temperature. Oxidation and recession rates of ZrB2 - 20 vol% SiC were adequately modeled by parabolic kinetics. Oxidation rates of this material are rapid, allowing only very short-term application in air or other high oxygen partial pressure environments.