Journal ArticleDOI
Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene
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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Nanocellulose-based conductive materials and their emerging applications in energy devices - A review
TL;DR: In this paper, a comprehensive review focusing on the recent progress of fabricating conductive NC materials and the energy devices, including supercapacitors, lithium ion batteries, and solar cells, is presented.
Journal ArticleDOI
Growth of semiconducting graphene on palladium.
Soon-Yong Kwon,Cristian V. Ciobanu,V. Petrova,Vivek B. Shenoy,Javier Bareño,Vincent Gambin,Ivan Petrov,Suneel Kodambaka +7 more
TL;DR: In situ scanning tunneling microscopy studies of graphene growth on Pd(111) during ethylene deposition at temperatures between 723 and 1023 K point to the possibility of preparing semiconducting graphene layers for future carbon-based nanoelectronic devices via direct deposition onto strongly interacting substrates.
Journal ArticleDOI
Tensile strain switched ferromagnetism in layered NbS2 and NbSe2.
TL;DR: Examination of a series of transition metal dichalcogenides shows that the biaxial tensile strained NbS (2) and NbSe(2) structures can be magnetized with a ferromagnetic character due to the competitive effects of through-bond interaction and through-space interaction.
Journal ArticleDOI
Evolution from graphite to graphene elastomer composites
Kishor Kumar Sadasivuni,Kishor Kumar Sadasivuni,Deepalekshmi Ponnamma,Sabu Thomas,Yves Grohens +4 more
TL;DR: In this article, the dependence of graphitic fillers on the rheological, electrical, mechanical, thermal, dielectric and barrier properties of elastomer composites is discussed, giving special emphasis to particle size and mode of interactions with the matrix.
Journal ArticleDOI
Super-elastic and fatigue resistant carbon material with lamellar multi-arch microstructure.
Huai-Ling Gao,YinBo Zhu,Li-Bo Mao,FengChao Wang,Xi-Sheng Luo,Yang-Yi Liu,Yang Lu,Zhao Pan,Jin Ge,Wei Shen,Ya-Rong Zheng,Liang Xu,Linjun Wang,Weihong Xu,HengAn Wu,Shu-Hong Yu +15 more
TL;DR: This structural material, although constructed using an intrinsically brittle carbon constituent, is simultaneously super-elastic, highly compressible and fatigue resistant to a degree even greater than that of previously reported compressible foams mainly made from more robust constituents.
References
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Journal ArticleDOI
Raman spectrum of graphene and graphene layers.
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.