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Electrical Conductivity of Discontinuous Filament–reinforced Unidirectional Composites

Published online by Cambridge University Press:  31 January 2011

Jyh-Ming Ting  and
Kuo-Wei Chen
Jyh-Ming Ting
Affiliation:
Department of Materials Science and Engineering, National Cheng Kung University, Tainan, Taiwan, Republic of China
Kuo-Wei Chen
Affiliation:
Department of Materials Science and Engineering, National Cheng Kung University, Tainan, Taiwan, Republic of China
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Abstract

The electrical conductivity of discontinuous filament–reinforced unidirectional composites was investigated. The discontinuous reinforcement used was copper filament, and the matrix materials included solder and epoxy. It was found that the composite conductivity increases with filament length and eventually becomes a constant. Such behavior is described by introducing an interface impedance and the principle of rule of mixture. It was found both experimentally and theoretically that there exists a critical filament length that must be exceeded so the composites will exhibit conductivity as composites having continuous reinforcing filaments.

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Type
Articles
Information
Journal of Materials Research , Volume 15 , Issue 4 , April 2000 , pp. 940 - 943
Copyright
Copyright © Materials Research Society 2000

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References

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