Results 71 to 80 of about 20,603 (183)
Sliding Over Graphene Grain Boundaries: A Step Towards Macroscale Superlubricity
, 2020 In light of the race towards macroscale superlubricity of graphitic contacts, the effect of grain boundaries on their frictional properties becomes of central importance. Here, we elucidate the unique frictional mechanisms characterizing topological defects along typical grain boundaries that can vary from being nearly flat to highly corrugated ...
Gao, Xiang +3 more
openaire +2 more sources
Next MaterialsResearch on the chemical structures and physicochemical properties of deep eutectic solvents (DESs) is crucial to develop high-performance DES-based lubricating materials for solving tribological problem, including friction and wear.
Qiulong Gao +5 more
doaj +1 more source
Atomic Friction Studied by Modeling the Buried Inteface [PDF]
, 2011 Molecular dynamics simulation is carried out to model the single-asperity friction in atomic force microscope experiments. Superlubricity is achieved through misalignment between the AFM tip and substrate.
Carpick, Robert W. +3 more
core +1 more source
Influence of Electrical Stimulation on the Friction Performance of LiPF6-Based Ionic Liquids
LubricantsThis work studied the influence of the voltage parameters on the friction and superlubricity performances of LiPF6-based ionic liquids (ILs). The results show that the voltage direction and magnitude greatly affected the friction performances of ILs and ...
Xiangyu Ge +4 more
doaj +1 more source
Contact mechanics and friction: Role of adhesion
FrictionThis paper presents an overview of the role of adhesion in various tribological phenomena. We discuss (1) adhesion and adhesive hysteresis in rough contacts, (2) adhesive contribution to dry friction, (3) properties of adhesive contacts under tangential ...
Valentin L. Popov +2 more
doaj +1 more source
Superlubricity enabled by graphene nanocomposite film on carbon-coated AISI 1045 steel
Materials & DesignThis paper presents a low-cost and innovative method for treating high temperature biowaste to create an ultra-low friction carbon-based coating on AISI 1045 steel.
Tabiri Kwayie Asumadu +8 more
doaj +1 more source
Superlubricity of glycerol by self-sustained chemical polishing [PDF]
, 2019 International audienceAn impressive superlow coefficient of friction (CoF) as low as 0.004 (nearly equivalent to the rolling coefficient) was obtained by sliding a steel ball against a tetrahedral amorphous diamond-like carbon (ta-C) coating in glycerol ...
De Barros Bouchet, Maria-Isabel +4 more
core +3 more sources
Superlubricity of polyethylene glycol solutions: Running-in effects, thickness changes, and rheology
FrictionThe role of additives in liquid superlubricity is regarded as a crucial element of the running-in process due to their role in reducing friction. Nevertheless, there has been minor investigation into rheological changes that occur during the process ...
Tomáš Poláček +4 more
doaj +1 more source
Elucidating the composition and formation mechanism of slippery films from block copolymers on doped diamond-like carbon surfaces [PDF]
Silicon-doped diamond-like carbon (Si-DLC) coatings combined with nitrogen-containing block copolymers offer a promising avenue for advanced boundary lubrication.
Cavaleiro A. +8 more
core +4 more sources
FrictionHydrated ions can achieve exceptional hydration lubrication through their adsorption onto oppositely charged surfaces. Similarly, the charge characteristics of polyelectrolytes are expected to significantly impact the hydration lubrication performance of
Jianing Xu +3 more
doaj +1 more source