Chapter 52. Pilot-Scale Combustion Testing of Silicon-Based Ceramics

  1. John B. Wachtman Jr.
  1. Tina M. Watne,
  2. John P. Hurley and
  3. Jay R. Gunderson

Published Online: 26 MAR 2008

DOI: 10.1002/9780470314821.ch52

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

Watne, T. M., Hurley, J. P. and Gunderson, J. R. (1996) Pilot-Scale Combustion Testing of Silicon-Based Ceramics, 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.ch52

Author Information

  1. Energy & Environmental Research Center, University of North Dakota, Grand Forks, ND 58202–9018

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:

  • ceramics;
  • combustor;
  • spectrometer;
  • combustion;
  • thermal expansion coefficient

Summary

Five silicon-based structural ceramic materials were exposed in a 220,000-W pilot-scale combustor for over 100 hours. The combustor fired an eastern bituminous Illinois No. 6 coal with a flame temperature near 1430°C. The ceramics were located in two sections of the furnace; some were embedded in the refractory wall of the main combustor and experienced temperatures in the range of 1320°-1370°C, whereas others were placed along the floors of the convective ducts and experienced temperatures in the range of 1180°-1230°C. The surface recession and material loss were determined for each sample, and the materials were examined by scanning electron microscopy and x-ray fluorescence energy-dispersive spectrometer to determine corrosion mechanisms and rates.