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Leaf-like carbon nanotube-graphene nanoribbon hybrid reinforcements for enhanced load transfer in copper matrix composites

Yang, Ming, Weng, Lin, Zhu, Hanxing, Zhang, Fan, Fan, Tongxiang and Zhang, Di 2017. Leaf-like carbon nanotube-graphene nanoribbon hybrid reinforcements for enhanced load transfer in copper matrix composites. Scripta Materialia 138 , pp. 17-21. 10.1016/j.scriptamat.2017.05.024

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Abstract

A leaf-inspired nanoengineering is employed for the structural design of carbon nanofillers. We fabricate leaf-like carbon nanotube (CNT)-graphene nanoribbon (GNR) hybrids as novel reinforcements for a copper matrix composite. The straight and stiff CNT ‘midribs’ are conducive to individual dispersion whilst the two-dimensional GNR ‘margins’ provide more sufficient interface contact area and deformation gradient zone, giving rise to significantly improved interfacial load transfer and mechanical strength as compared to the unmodified nanotubes. The mechanics and strengthening mechanisms are further rationalized by finite element analysis and the generalized shear-lag theory.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Uncontrolled Keywords: Metal matrix composites; CNT-graphene hybrids; Bio-inspired; Shear-lag; Finite element analysis
Publisher: Elsevier
ISSN: 1359-6462
Date of First Compliant Deposit: 31 May 2017
Date of Acceptance: 17 May 2017
Last Modified: 04 Jun 2018 18:44
URI: http://orca.cf.ac.uk/id/eprint/100997

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