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Nanostructured “Brick-and-mortar” interphase inspired by nacre to improve carbon fibre composite performance

De Luca, F; Clancy, AJ; Shaffer, MSP; Bismarck, A; (2017) Nanostructured “Brick-and-mortar” interphase inspired by nacre to improve carbon fibre composite performance. In: Du, Shanyi and Leng, Jinsong and Peng, Hua-Xin and Zhang, Zhong, (eds.) Proceedings of the 21st International Conference on Composite Materials 2017. ICCM: Xi'an, China. Green open access

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Abstract

Carbon fibre-reinforced composites are well-known for their high mechanical performance and low weight, but suffer from sudden failure caused by the correlation of fibre breaks leading to local stress concentration. Mechanisms for energy dissipation at the fibre/matrix interface while maintaining good load transfer represents a route to improve the tensile properties of the composites. Here, we developed a conformal “brick-and-mortar” nanostructure inspired by the architecture of nacre around the surface of carbon fibres, which provides mechanisms for energy absorption and plasticity at fibre breaks. A Layer-by-Layer assembly method enabled the deposition of the nanostructured coating onto multiple fibres simultaneously, allowing for the manufacture of unidirectional bundle composites. Absolute improvements in tensile strength and strain-to-failure of the composites containing the nanostructured interphase were measured.

Type: Proceedings paper
Title: Nanostructured “Brick-and-mortar” interphase inspired by nacre to improve carbon fibre composite performance
Event: 21st International Conference on Composite Materials 2017, 20-25 August 2017, Xi'an, China
Open access status: An open access version is available from UCL Discovery
Publisher version: http://www.iccm21.org
Language: English
Additional information: This version is the version of the record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: “Brick-and-Mortar” nanostructure, composite interphase, interfacial properties, mechanical properties, energy absorption
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/10068053
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