Mechanical properties of bulk carbon nanomaterials
- 10 October 2014
- journal article
- Published by Pleiades Publishing Ltd in Physics of the Solid State
- Vol. 56 (10) , 2010-2016
Abstract
Bulk carbon nanomaterials, which open prospects for the development of a new generation of supercapacitors, are actively investigated for recent years, but their mechanical properties and structure remain poorly understood. In connection with this fact, the influence of the hydrostatic and uniaxial compression on mechanical properties and structure of three bulk nanomaterials consisting of (i) bent graphene flakes, (ii) short carbon nanotubes, and (iii) fullerenes C240 are investigated by the molecular dynamics method. It is shown that the strength of the material and its stability to graphitization depend on its constituent structural units. At large degrees of deformation, the material consisting of bent graphene sheets has the highest strength, whereas at the material density lower than 2.5 g/cm3, the highest strength is observed in the nanomaterial consisting of fullerene molecules. The differences in mechanical properties of the materials under consideration are explained by their structural features.Keywords
This publication has 44 references indexed in Scilit:
- Effect of Stone-Thrower-Wales defect on structural stability of graphene at zero and finite temperaturesEurophysics Letters, 2013
- Porous 3D graphene-based bulk materials with exceptional high surface area and excellent conductivity for supercapacitorsScientific Reports, 2013
- Crumpled graphene particles for microbial fuel cell electrodesJournal of Power Sources, 2012
- Velocities of sound and the densities of phonon states in a uniformly strained flat graphene sheetPhysics of the Solid State, 2012
- Effect of elastic deformation on phonon spectrum and characteristics of gap discrete breathers in crystal with NaCl-type structureTechnical Physics Letters, 2011
- Third-order elastic moduli of single-layer graphenePhysics of the Solid State, 2011
- Absolute negative conductivity in graphene with the Hubbard interaction in a magnetic fieldPhysics of the Solid State, 2010
- Mutual rectification of alternating currents induced by electromagnetic waves in graphenePhysics of the Solid State, 2009
- Measurement of the Elastic Properties and Intrinsic Strength of Monolayer GrapheneScience, 2008
- Nonlinear dynamics of carbon molecular lattices: Soliton plane waves in graphite layers and supersonic acoustic solitons in nanotubesPhysics of the Solid State, 2004