Journal
JOURNAL OF APPLIED PHYSICS
Volume 109, Issue 1, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3528213
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Funding
- Australian Research Council (ARC) [LP0775109, DP0772999]
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Graphene paper (GP) has been prepared by flow-directed assembly of graphene nanosheets. The mechanical properties of as-prepared GPs were investigated by tensile, indentation, and bending tests. Heat treated GPs demonstrate superior hardness, ten times that of synthetic graphite, and two times that of carbon steel; besides, their yielding strength is significantly higher than that of carbon steel. GPs show extremely high modulus of elasticity during bending test; in the range of a few terapascal. The high strength and stiffness of GP is ascribed to the interlocking-tile microstructure of individual graphene nanosheets in the paper. These outstanding mechanical properties of GPs could lead to a wide range of engineering applications. (c) 2011 American Institute of Physics. [doi:10.1063/1.3528213]
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