Chapter 31. Alumina Single-Crystal Fibre Reinforced Alumina Matrix for Combustor Tiles

  1. Don Bray
  1. O. Sudre1,
  2. A. G. Razzell2,
  3. L. Molliex3 and
  4. M. Holmquist4

Published Online: 23 MAR 2010

DOI: 10.1002/9780470294499.ch31

22nd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 19, Issue 4

22nd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 19, Issue 4

How to Cite

Sudre, O., Razzell, A. G., Molliex, L. and Holmquist, M. (1998) Alumina Single-Crystal Fibre Reinforced Alumina Matrix for Combustor Tiles, in 22nd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 19, Issue 4 (ed D. Bray), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294499.ch31

Author Information

  1. 1

    ONERA, France

  2. 2

    ROLLS-ROYCE plc. Great-Britain

  3. 3

    SNECMA, France

  4. 4

    VOLVO AERO corp., Sweden

Publication History

  1. Published Online: 23 MAR 2010
  2. Published Print: 1 JAN 1998

ISBN Information

Print ISBN: 9780470375594

Online ISBN: 9780470294499

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Keywords:

  • encapsulation;
  • interfacial;
  • refractory;
  • diffusion;
  • convection

Summary

Reduction of NOx emissions and increased engine performance could be achieved using uncooled or back-cooled ceramic combustor chambers. For oxidation and temperature stability purposes, single crystal oxide fiber-based composites would be most desirable. To assess such a far-reaching technology, unidirectional and cross-ply alumina single crystal fiber-reinforced alumina composites were processed. Several interfacial design concepts were demonstrated by coating the fibers with carbon and zirconia either mixed or as a double coating. The best properties were obtained by eliminating the carbon phase during a final heat-treatment in air. Room-temperature mechanical performance compared well with other current ceramic matrix composites and their dissipative behavior was sustained after aging at 1400°C for 1000 hours. This technology is further discussed with regards to a combustor tile application.