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Double Interface Coatings on Silicon Carbide Fibers

Published online by Cambridge University Press:  01 February 2011

Jun C. Nable ,
Shaneela Nosheen ,
Steven L. Suib ,
Francis S. Galasso  and
Michael A. Kmetz
Jun C. Nable
Affiliation:
University of Connecticut, Department of Chemistry, Storrs, CT 06269
Shaneela Nosheen
Affiliation:
University of Connecticut, Department of Chemistry, Storrs, CT 06269
Steven L. Suib*
Affiliation:
University of Connecticut, Department of Chemistry, Storrs, CT 06269 University of Connecticut, Institute of Materials Science, CT 06269
Francis S. Galasso
Affiliation:
University of Connecticut, Department of Chemistry, Storrs, CT 06269
Michael A. Kmetz
Affiliation:
Pratt & Whitney, East Hartford, CT
*
* Corresponding author
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Abstract

Interface coatings on fibers are important in ceramic matrix composites. In addition to providing toughness, the interface coating must also protect the reinforcing ceramic fibers from corrosive degradation. A double interface coating has been applied onto silicon carbide fibers. The double interface coating is comprised of a combination of nitride and oxide coatings. Among the nitrides, boron nitride and titanium nitride were utilized. These nitrides were deposited by CVD. The metal oxides of choice were aluminum oxide and zirconium oxide which were applied onto the nitride coatings by MOCVD. The phases on the coated fibers were determined by XRD. The surface coating microstructures were observed by SEM. The effect of the coatings on the tensile strengths was determined by Instron tensile strength measurements.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 843: Symposium T – Surface Engineering-Fundamentals and Applications , 2004 , T3.11
Copyright
Copyright © Materials Research Society 2005

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References

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