Chapter 42. Alumina Woven Fibre-Reinforced Composites Produced by Directed Melt Oxidation

  1. J. P. Singh
  1. X. Gu and
  2. E. G. Butler

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294437.ch42

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

Gu, X. and Butler, E. G. (1997) Alumina Woven Fibre-Reinforced Composites Produced by Directed Melt Oxidation, 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.ch42

Author Information

  1. Interdisciplinary Research Centre in Materials for High Performance Applications, The University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.

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:

  • reaction barrier;
  • matrix composites;
  • melt oxidation;
  • deposition techniques;
  • interlayers

Summary

Two-dimensional woven Al2O3 fibre-reinforced Al2O3/Al matrix composites have been produced by directed melt oxidation of Al-Mg alloys. In order to prevent chemical interaction between the fibre and matrix during processing, barrier coatings on the fibres are necessary. In this work, the process of depositing multilayer coatings on the Al2O3 woven fibre was investigated. The first deposited layer was ZrO2 which acted as a reaction barrier and interface debond coating; a further coating of protective aluminia overlayed the ZrO2 layer to match to the Al2O3 matrix during directed melt oxidation process; finally silica was deposited as an outer layer as an initiator for the directed oxidation reaction. This study primarily concentrated on the deposition techniques and the resultant microstructure of the interlayers to evaluate the feasibility of using these methods in the development of all oxide CMCs' by the directed melt oxidation process.