Chapter 19. Development of Oxide Coatings for Matching Oxide Fiber-Oxide Matrix Composites
- John B. Wachtman Jr.
Published Online: 28 MAR 2008
Copyright © 1994 The American Ceramic Society
Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - B: Ceramic Engineering and Science Proceedings, Volume 15, Issue 5
How to Cite
Lev, L. C. and Argon, A. S. (1994) Development of Oxide Coatings for Matching Oxide Fiber-Oxide Matrix Composites, in Proceedings of the 18th Annual Conference on Composites and Advanced Ceramic Materials - B: Ceramic Engineering and Science Proceedings, Volume 15, Issue 5 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314555.ch19
- Published Online: 28 MAR 2008
- Published Print: 1 JAN 1994
Print ISBN: 9780470375334
Online ISBN: 9780470314555
- single crystal oxide fibers;
- coefficient of thermal expansion;
- atmospheric corrosion;
- high temperature creep;
- fiber — matrix interface
A composite of matching oxide matrix and oxide fibers, such as Al2O3/Al2O3, is an attractive system for high temperature applications answering the problems of thermal mismatch, creep and corrosion. The fracture toughness of such composites is governed by the strength and toughness of the fiber-matrix interfaces.
A coating on a single crystal Al2O3 fiber with a layered structure, allowing the control of this interfacial strength is proposed and the method of achieving it is developed. The method of measuring the adhesive strength between the coating and the substrate is presented and its application to the particular coatings is discussed. The tensile strength of the interface between the coating and the fiber substrate for the pairs of Al2O3/TiO2 and Al2O3/ZrO2 is determined.