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Atomic-scale friction in graphene oxide: An interfacial interaction perspective from first-principles calculations
Atomic-scale friction in graphene oxide is investigated using density functional theory calculation including a long-range dispersion correction (DFT-D). The sliding behaviors between two grapheneExpand
Partial Slip Contact Analysis on Three-Dimensional Elastic Layered Half Space
An elastic contact model for three-dimensional layered or coated materials under coupled normal and tangential loads, with consideration of partial slip effects, has been developed in this paper. TheExpand
Robust microscale superlubricity under high contact pressure enabled by graphene-coated microsphere
This work reports a direct measurement of sliding friction between graphene and graphene, and graphene and hexagonal boron nitride (h-BN) under high contact pressures by employing graphene-coated microsphere (GMS) probe prepared by metal-catalyst-free chemical vapour deposition. Expand
A Numerical Elastic–Plastic Contact Model for Rough Surfaces
Elastic-plastic contacts were analyzed by means of a three-dimensional numerical model based on minimization of complementary energy, in which the effect of plastic deformation is included byExpand
Vanishing stick-slip friction in few-layer graphenes: the thickness effect.
The thickness dependence of intrinsic friction in few-layer graphenes is reported, adopting molecular dynamics simulations, and reveals the crucial role of the dimensional effect in nanoscale friction, and could be helpful in the design of graphene-based nanodevices. Expand
Tribological behaviors of surfactant-functionalized carbon nanotubes as lubricant additive in water
The multi-walled carbon nanotubes (MWCNTs) are functionalized by self-assembled surfactant layers after sonication in anionic surfactant sodium dodecyl sulfate (SDS) aqueous solution. TheExpand
A shear localization mechanism for lubricity of amorphous carbon materials
It is shown that lubricity arises from shear induced strain localization, which, instead of homogeneous deformation, dominates the shearing process. Expand
Molecular dynamics simulation of the interlayer sliding behavior in few-layer graphene
Abstract The interlayer sliding behavior of few-layer (3–8) graphene (FLG) is investigated using molecular dynamics simulations. A constant velocity is imposed on the top layer, inducing relativeExpand
Combined Effects of Structural Transformation and Hydrogen Passivation on the Frictional Behaviors of Hydrogenated Amorphous Carbon Films
Tribological behaviors of hydrogenated amorphous carbon (a-C:H) films under single asperity contact are investigated by molecular dynamics (MD) simulations. Hydrogen concentration and normal load areExpand
Microstructure, mechanical properties, and oxidation resistance of nanocomposite Ti–Si–N coatings
Abstract Ti–Si–N coatings with different silicon contents (0–12 at.%) were deposited onto Si(1 0 0) wafer, AISI M42 high speed steel, and stainless steel plate, respectively. These coatings wereExpand