The determination of carbon fibre bundle sizes by electrochemical impedance spectroscopy

L. O. Dandy, G. Oliveux, J. Wood, M. J. Jenkins, G. A. Leeke

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Electrochemical Impedance Spectroscopy (EIS) has been used to measure the diameter of single carbon fibres to within 3% of the actual value measured by Scanning Electron Microscopy (SEM). The precision of the technique developed also allows for the accurate determination of the number of fibres present in a carbon fibre bundle, such data are important for the calculation of fibre tensile strength from the tensile force applied to carbon fibre bundles. The impedance of a single carbon fibre and carbon fibre bundles of up to 20 fibres have been measured, with results showing good agreement with theoretical values. The impedance of multiple lengths of carbon fibres ranging from 80-300 mm has also been studied, with the impedance being directly proportional to the fibre length, as per electrical theory. This technique will be suitable for determining the number of fibres in a virgin or recycled carbon fibre bundle.

Original languageEnglish
Title of host publication16th European Conference on Composite Materials, ECCM 2014
PublisherEuropean Society for Composite Materials
ISBN (Electronic)9780000000002
Publication statusPublished - 1 Jan 2014
Event16th European Conference on Composite Materials, ECCM 2014 - Seville, Spain
Duration: 22 Jun 201426 Jun 2014

Conference

Conference16th European Conference on Composite Materials, ECCM 2014
Abbreviated titleECCM 2014
Country/TerritorySpain
CitySeville
Period22/06/1426/06/14

Keywords

  • Carbon fibre
  • Electrical properties
  • Non-destructive testing
  • Recycling

ASJC Scopus subject areas

  • Ceramics and Composites

Fingerprint

Dive into the research topics of 'The determination of carbon fibre bundle sizes by electrochemical impedance spectroscopy'. Together they form a unique fingerprint.

Cite this