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Fibers 2018, 6(4), 78;

Integrity of Carbon-Fibre Epoxy Composites through a Nanomechanical Mapping Protocol towards Quality Assurance

Research Unit of Advanced, Composite, Nano-Materials and Nanotechnology (R-Nano Lab), Material Science and Engineering Department, School of Chemical Engineering, National Technical University of Athens, GR-15780 Zographou, Greece
Author to whom correspondence should be addressed.
Received: 3 July 2018 / Revised: 25 September 2018 / Accepted: 2 October 2018 / Published: 11 October 2018
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The purpose of this study is to assess the integrity of carbon-fibre reinforced plastics (CFRP) comprising of commercial and surface modified CFs through nanomechanical mapping protocol, towards the feasibility of nanoindentation tool as a quality assurance means in a composite manufacturing process. Carbon fibre surface modification was selected for enhancement of the wetting properties of carbon fibres in order to improve the adhesion force between the fibre and the polymer matrix. In all cases, epoxy resin was used as a matrix for the manufacturing of composite samples. Plastic deformation/elastic recovery were recorded (together with viscoelasticity and adhesion-discontinuities and fluctuations during measurement), while elastic modulus values are also mapped. Moreover, the resistance to applied load is assessed and compared for all cases. View Full-Text
Keywords: nanoindentation; mapping; carbon; fibre; composite; integrity nanoindentation; mapping; carbon; fibre; composite; integrity

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Koumoulos, E.P.; Charitidis, C.A. Integrity of Carbon-Fibre Epoxy Composites through a Nanomechanical Mapping Protocol towards Quality Assurance. Fibers 2018, 6, 78.

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