About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
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Symposium
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Functional Nanomaterials: Functional Low-dimensional Materials (0D, 1D, 2D) Driving Innovations in Electronics, Energy, Sensors, and Environmental Engineering and Science 2021
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Presentation Title |
Intrinsic and Interfacial Fatigue of Graphene |
Author(s) |
Tobin Filleter |
On-Site Speaker (Planned) |
Tobin Filleter |
Abstract Scope |
With the demand for the long-term reliability of graphene devices and structures, the fatigue behavior of graphene necessitates careful investigation. Here we study the intrinsic fatigue of graphene. We discovered [1] that graphene suffers mechanical fatigue, but exhibits remarkable fatigue life of more than one billion cycles at large stress levels. Despite the record-high intrinsic fatigue life of graphene, we observed significant interfacial fatigue damage when introducing graphene-polymer contact [2]. Cyclic loading through the vdW interfaces could induce fracture of graphene even in tens of cycles, with the main fracture modes identified as in-plane shear and tear. These studies provide fundamental insights on the dynamic reliability of graphene and call for further fatigue studies of other 2D materials and their interfaces.[1] T. Cui et al., “Fatigue of graphene", Nature Materials, 19 (2020) 405-411 [2] T. Cui et al., “Graphene Fatigue through van der Waals Interactions”, in revision. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nanotechnology, Thin Films and Interfaces, Mechanical Properties |