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Wrinkled few-layer graphene as highly efficient load bearer
- Source :
- ACS Appl. Mater. Interfaces, 9 (31), pp 26593-26601 (2017)
- Publication Year :
- 2017
-
Abstract
- Multilayered graphitic materials are not suitable as load-bearers due to their inherent weak interlayer bonding (for example, graphite is a solid lubricant in certain applications). This situation is largely improved when two-dimensional (2-D) materials such as a monolayer (SLG) graphene are employed. The downside in these cases is the presence of thermally or mechanically induced wrinkles which are ubiquitous in 2-D materials. Here we set out to examine the effect of extensive large wavelength/ amplitude wrinkling on the stress transfer capabilities of exfoliated simply-supported graphene flakes. Contrary to common belief we present clear evidence that this type of "corrugation" enhances the load bearing capacity of few-layer graphene as compared to 'flat' specimens. This effect is the result of the significant increase of the graphene/polymer interfacial shear stress per increment of applied strain due to wrinkling and paves the way for designing affordable graphene composites with highly improved stress-transfer efficiency.<br />Comment: 20 pages, 6 figures
- Subjects :
- Condensed Matter - Materials Science
Subjects
Details
- Database :
- arXiv
- Journal :
- ACS Appl. Mater. Interfaces, 9 (31), pp 26593-26601 (2017)
- Publication Type :
- Report
- Accession number :
- edsarx.1708.02988
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1021/acsami.7b07547