Journal ArticleDOI
Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene
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TLDR
Graphene is established as the strongest material ever measured, and atomically perfect nanoscale materials can be mechanically tested to deformations well beyond the linear regime.Abstract:
We measured the elastic properties and intrinsic breaking strength of free-standing monolayer graphene membranes by nanoindentation in an atomic force microscope. The force-displacement behavior is interpreted within a framework of nonlinear elastic stress-strain response, and yields second- and third-order elastic stiffnesses of 340 newtons per meter (N m(-1)) and -690 Nm(-1), respectively. The breaking strength is 42 N m(-1) and represents the intrinsic strength of a defect-free sheet. These quantities correspond to a Young's modulus of E = 1.0 terapascals, third-order elastic stiffness of D = -2.0 terapascals, and intrinsic strength of sigma(int) = 130 gigapascals for bulk graphite. These experiments establish graphene as the strongest material ever measured, and show that atomically perfect nanoscale materials can be mechanically tested to deformations well beyond the linear regime.read more
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Mechanical systems in the quantum regime
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Strain engineering of thermal conductivity in graphene sheets and nanoribbons: a demonstration of magic flexibility
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Journal ArticleDOI
Contact engineering in organic field-effect transistors
Chuan Liu,Yong Xu,Yong-Young Noh +2 more
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Journal Article
Effect of Defects on the Intrinsic Strength and Stiffness of Graphene
Ardavan Zandiatashbar,Gwan Hyoung Lee,Hamed Parvaneh,Sung Joo An,Sunwoo Lee,Nithin Mathew,Catalin R. Picu,James Hone,Nikhil Koratkar +8 more
TL;DR: In this article, the authors report that the two-dimensional elastic modulus of graphene is maintained even at a high density of sp(3)-type defects and that the breaking strength of defective graphene is only 14% smaller than its pristine counterpart in the sp3-defect regime.
Journal ArticleDOI
Subjecting a graphene monolayer to tension and compression
Georgia Tsoukleri,John Parthenios,Konstantinos Papagelis,Rashid Jalil,Andrea C. Ferrari,Andre K. Geim,Kostya S. Novoselov,Costas Galiotis +7 more
TL;DR: The retainment of such a high critical buckling strain confirms the relative high flexural rigidity of the embedded monolayer.
References
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Andrea C. Ferrari,Jannik C. Meyer,Vittorio Scardaci,Cinzia Casiraghi,Michele Lazzeri,Francesco Mauri,S. Piscanec,Da Jiang,K. S. Novoselov,S. Roth,A. K. Geim +10 more
TL;DR: This work shows that graphene's electronic structure is captured in its Raman spectrum that clearly evolves with the number of layers, and allows unambiguous, high-throughput, nondestructive identification of graphene layers, which is critically lacking in this emerging research area.
Journal ArticleDOI
Two-dimensional atomic crystals
Kostya S. Novoselov,Da Jiang,Fred Schedin,Timothy J. Booth,V. V. Khotkevich,Sergey V. Morozov,Andre K. Geim +6 more
TL;DR: By using micromechanical cleavage, a variety of 2D crystals including single layers of boron nitride, graphite, several dichalcogenides, and complex oxides are prepared and studied.
Journal ArticleDOI
The Phenomena of Rupture and Flow in Solids
TL;DR: In this article, the authors investigated the effect of surface scratches on the mechanical strength of solids, and some general conclusions were reached which appear to have a direct bearing on the problem of rupture, from an engineering standpoint, and also on the larger question of the nature of intermolecular cohesion.
Book
Physical properties of crystals
TL;DR: In this paper, the physical properties of crystals systematically in tensor notation are presented, presenting tensor properties in terms of their common mathematical basis and the thermodynamic relations between them.
Journal ArticleDOI
Strength and breaking mechanism of multiwalled carbon nanotubes under tensile load
TL;DR: The tensile strengths of individual multiwalled carbon nanotubes (MWCNTs) were measured with a "nanostressing stage" located within a scanning electron microscope and a variety of structures were revealed, such as a nanotube ribbon, a wave pattern, and partial radial collapse.