Development of a universal stress sensor for graphene and carbon fibres

Otakar Frank, Georgia Tsoukleri, Ibtsam Riaz, Konstantinos Papagelis, John Parthenios, Andrea C. Ferrari, Andre K. Geim, Kostya S. Novoselov and Costas Galiotis ()
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Otakar Frank: Institute of Chemical Engineering and High Temperature Chemical Processes, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), Stadiou Street, Platani, Patras 265 04, Greece.
Georgia Tsoukleri: Institute of Chemical Engineering and High Temperature Chemical Processes, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), Stadiou Street, Platani, Patras 265 04, Greece.
Ibtsam Riaz: School of Physics and Astronomy, University of Manchester
Konstantinos Papagelis: Institute of Chemical Engineering and High Temperature Chemical Processes, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), Stadiou Street, Platani, Patras 265 04, Greece.
John Parthenios: Institute of Chemical Engineering and High Temperature Chemical Processes, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), Stadiou Street, Platani, Patras 265 04, Greece.
Andrea C. Ferrari: Cambridge University
Andre K. Geim: School of Physics and Astronomy, University of Manchester
Kostya S. Novoselov: School of Physics and Astronomy, University of Manchester
Costas Galiotis: Institute of Chemical Engineering and High Temperature Chemical Processes, Foundation of Research and Technology-Hellas (FORTH/ICE-HT), Stadiou Street, Platani, Patras 265 04, Greece.

Nature Communications, 2011, vol. 2, issue 1, 1-7

Abstract: Abstract Carbon fibres are a significant volume fraction of modern structural airframes. Embedded into polymer matrices, they provide significant strength and stiffness gains by unit weight compared with competing structural materials. Here we use the Raman G peak to assess the response of carbon fibres to the application of strain, with reference to the response of graphene itself. Our data highlight the predominance of the in-plane graphene properties in all graphitic structures examined. A universal master plot relating the G peak strain sensitivity to tensile modulus of all types of carbon fibres, as well as graphene, is presented. We derive a universal value of—average—phonon shift rate with axial stress of around −5ω0−1 (cm−1 MPa−1), where ω0 is the G peak position at zero stress for both graphene and carbon fibre with annular morphology. The use of this for stress measurements in a variety of applications is discussed.

Date: 2011
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DOI: 10.1038/ncomms1247

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