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
Citations
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Coherent, atomically thin transition-metal dichalcogenide superlattices with engineered strain
Saien Xie,Saien Xie,Lijie Tu,Yimo Han,Lujie Huang,Kibum Kang,Ka Un Lao,Preeti Poddar,Chibeom Park,David A. Muller,Robert A. DiStasio,Jiwoong Park,Jiwoong Park +12 more
TL;DR: Report of coherent atomically thin superlattices in which different transition metal dichalcogenide monolayers—despite large lattice mismatches—are repeated and laterally integrated without dislocations within the monolayer plane.
Journal ArticleDOI
Graphene Nanomaterials: Synthesis, Biocompatibility, and Cytotoxicity.
TL;DR: Several techniques that are available for the synthesis of graphene-based nanomaterials are reviewed, and the biocompatibility and toxicity of such nanommaterials upon exposure to mammalian cells under in vitro and in vivo conditions are discussed.
Journal ArticleDOI
New materials graphyne, graphdiyne, graphone, and graphane: review of properties, synthesis, and application in nanotechnology
TL;DR: Because graphyne and graphdiyne are close to graphene and will play important roles in carbon-based electronic devices, they deserve further, careful, and thorough studies for nanotechnology applications.
Journal ArticleDOI
Ultra high stiffness and thermal conductivity of graphene like C3N
TL;DR: In this paper, the authors explored the mechanical response and thermal transport along pristine, free-standing and single-layer carbon nitride 2D material and conducted extensive first-principles density functional theory (DFT) calculations as well as molecular dynamics simulations.
Journal ArticleDOI
Two-Dimensional Nanostructure- Reinforced Biodegradable Polymeric Nanocomposites for Bone Tissue Engineering
Gaurav Lalwani,Allan M. Henslee,Behzad Farshid,Liangjun Lin,F. Kurtis Kasper,Yi-Xian Qin,Antonios G. Mikos,Balaji Sitharaman +7 more
TL;DR: In general, the inorganic nanoparticle MSNP showed a better or equivalent mechanical reinforcement compared to carbon nanomaterials, and 2D nanostructures (GONPs, MSNPs) are better reinforcing agents compared to one-dimensional (1D) nanostructureures (e.g., SWCNTs).
References
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Journal ArticleDOI
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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.
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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.
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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.