Controlling the electrical conductivity of fibre-polymer composites using z-pins

Pegorin, F, Pingkarawat, K and Mouritz, A 2017, 'Controlling the electrical conductivity of fibre-polymer composites using z-pins', Composites Science and Technology, vol. 150, pp. 167-173.


Document type: Journal Article
Collection: Journal Articles

Title Controlling the electrical conductivity of fibre-polymer composites using z-pins
Author(s) Pegorin, F
Pingkarawat, K
Mouritz, A
Year 2017
Journal name Composites Science and Technology
Volume number 150
Start page 167
End page 173
Total pages 7
Publisher Pergamon Press
Abstract Carbon fibre composites have inherently high through-thickness electrical resistivity, which limits their application when high electrical conductivity is required. The use of z-pins to increase the through-thickness electrical conductivity of composite laminates is investigated in this paper. The through-thickness and in-plane electrical properties of a unidirectional carbon-epoxy laminate reinforced with carbon fibre composite or metal (copper, stainless steel, titanium) z-pins are characterised. Experimental tests and analytical model reveal that z-pins can increase the through-thickness electrical conductivity of the composite material by many orders of magnitude (up to 10 6 ). The through-thickness electrical conductivity can be controllably increased via the judicious choice of the material type and volume content of the z-pins. Large improvements to the through-thickness conductivity can be achieved without the z-pins altering significantly the in-plane conductivity of the composite material.
Subject Materials Engineering not elsewhere classified
Keyword(s) Electrical properties
Functional composites
Polymer-matrix composites (PMCs)
Z-pins
DOI - identifier 10.1016/j.compscitech.2017.07.018
ISSN 0266-3538
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