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Determination of Fiber/Matrix Interface Mechanical Properties in Brittle-Matrix Composites

Published online by Cambridge University Press:  21 February 2011

Ronald J. Kerans
Affiliation:
Wright Research and Development Center, Materials Laboratory, Wright-Patterson AFB OH
Paul D. Jero
Affiliation:
Wright Research and Development Center, Materials Laboratory, Wright-Patterson AFB OH
Triplicane A. Parthasarathy
Affiliation:
Universal Energy Systems, Inc., Dayton OH
Amit Chatterjee
Affiliation:
Adtech Systems Research, Dayton OH
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Abstract

It has been evident for some time that the mechanical properties of the fiber/matrix interface play an important role in determining the mechanical behavior of ceramic composites (for reviews, see [1], [2], and [3[). Recently there has been a growing interest in the role of the fiber/matrix interface in intermetallic matrix composites. While ceramic and intermetallic composites are certainly very different materials, understanding the behavior of one will provide insight into the other. Furthermore, the basic issues regarding the determination of interface properties are the same. The accuracy of micromechanics models of any composite system is dependent upon the accuracy of all the constituent and interface properties. It is far preferable to measure actual materials constants rather than test-specific quantities. The tests described here are intended to measure the interfacial shear strength (or mode II toughness) and the interfacial tensile strength. The objective of this work is to briefly outline a few of the approaches which are being evaluated for and applied to ceramic composites, and which may be of interest to investigators working in intermetallic composites.

Type
Research Article
Copyright
Copyright © Materials Research Society 1990

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References

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