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The permittivity at X-band frequencies of nickel-coated graphite fibers in an epoxy matrix

Published online by Cambridge University Press:  03 March 2011

Yung-Shou Ho  and
P. Schoen
Yung-Shou Ho
Affiliation:
Chemistry Department, University of Florida, Gainesville, Florida 32601
P. Schoen
Affiliation:
Center for Bio/Molecular Science & Engineering, Code 6900, Naval Research Laboratory, Washington, DC 20375-5348
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Abstract

In this study, we have investigated the microwave dielectric behavior of a composite formed by embedding nickel-coated graphite fibers in an epoxy matrix. Permittivities of composites in the X-band frequency range as a function of fiber concentration, fiber length, and the degree of fiber aggregation were studied. Fiber aggregation was reduced significantly by the addition of silica particles to the composite mixture before epoxy curing. Predictions from the mean field theory fit the experimental data well at dilute fiber concentrations.

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Type
Articles
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Journal of Materials Research , Volume 9 , Issue 1 , January 1994 , pp. 246 - 251
Copyright
Copyright © Materials Research Society 1994

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References

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