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Elastic Modulus of the Interphase in Organic Matrix Composites

Published online by Cambridge University Press:  21 February 2011

J. G. Williams ,
M. E. Donnellan ,
M. R. James  and
W. L. Morris
J. G. Williams
Affiliation:
Michigan Technological University, Houghton, MI 49931
M. E. Donnellan
Affiliation:
Naval Air Development Center, Warminster, PA 18976
M. R. James
Affiliation:
Science Center, Rockwell International Corp., Thousand Oaks, CA 91360
W. L. Morris
Affiliation:
Science Center, Rockwell International Corp., Thousand Oaks, CA 91360
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Abstract

In organic matrix composites the properties of the matrix in the vicinity of the reinforcing fiber are of interest [1]. It has been suggested that a volume of material surrounding the fiber is significantly different from the bulk matrix [2–6]. Recent work has indicated that the interphase layer may be softer than the normal matrix material [6]. For a model composite with a single fiber embedded in an epoxy/amine matrix this layer was observed to be about 500nm thick and the material had an average elastic modulus of about 1/4 of that of the normal matrix material. The objective of the present work is to observe the effect of fiber treatment on the elastic properties of the interphase.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 170: Symposium N – Interfaces in Composites , 1989 , 285
Copyright
Copyright © Materials Research Society 1990

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