Development of a universal stress sensor for graphene and carbon fibres
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Authors
Frank, O
Tsoukleri, G
Riaz, I
Papagelis, K
Parthenios, J
Ferrari, AC
Geim, AK
Novoselov, KS
Galiotis, C
Publication Date
2011-03Journal Title
NAT COMMUN
ISSN
2041-1723
Publisher
Springer Science and Business Media LLC
Volume
2
Number
ARTN 255
Type
Article
Metadata
Show full item recordCitation
Frank, O., Tsoukleri, G., Riaz, I., Papagelis, K., Parthenios, J., Ferrari, A., Geim, A., et al. (2011). Development of a universal stress sensor for graphene and carbon fibres. NAT COMMUN, 2 (ARTN 255) https://doi.org/10.1038/ncomms1247
Abstract
Carbon fibres (CF) represent a significant volume fraction of modern
structural airframes. Embedded into polymer matrices, they provide significant
strength and stiffness gains over unit weight as compared to other competing
structural materials. Nevertheless, no conclusive structural model yet exists
to account for their extraordinary properties. In particular, polyacrynonitrile
(PAN) derived CF are known to be fully turbostratic: the graphene layers are
slipped sideways relative to each other, which leads to an inter-graphene
distance much greater than graphite. Here, we demonstrate that CF derive their
mechanical properties from those of graphene itself. By monitoring the Raman G
peak shift with strain for both CF and graphene, we develop a universal master
plot relating the G peak strain sensitivity of all types of CF to graphene over
a wide range of tensile moduli. A universal value of - average- shift rate with
axial stress of ~ -5{\omega}0^-1 (cm^-1 MPa^-1)is calculated for both graphene
and all CF exhibiting annular ("onion-skin") morphology.
Sponsorship
Engineering and Physical Sciences Research Council (EP/G042357/1)
Identifiers
External DOI: https://doi.org/10.1038/ncomms1247
This record's URL: https://www.repository.cam.ac.uk/handle/1810/280465
Rights
Attribution-NonCommercial-ShareAlike 4.0 International
Licence URL: https://creativecommons.org/licenses/by-nc-sa/4.0/
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