Results 31 to 40 of about 2,518 (204)
Structural lubricity under ambient conditions. [PDF]
, 2016 Despite its fundamental importance, physical mechanisms that govern friction are poorly understood. While a state of ultra-low friction, termed structural lubricity, is expected for any clean, atomically flat interface consisting of two different ...
Baykara, Mehmet Z +3 more
core +1 more source
Static and dynamic friction in sliding colloidal monolayers [PDF]
, 2012 In a pioneer experiment, Bohlein et al. realized the controlled sliding of two-dimensional colloidal crystals over laser-generated periodic or quasi-periodic potentials.
A. Vanossi +23 more
core +1 more source
Friction, 2018 In thin-film lubrication (TFL), generally, the viscosity of the lubricant and its coefficient of friction (CoF) increase. Finding a method to reduce the CoF in TFL is a significant challenge for tribologists.
Xiangyu Ge +3 more
doaj +1 more source
Torque and Twist against Superlubricity
Physical Review Letters, 2008 Superlubricity between incommensurate surfaces provides a desired low-friction state essential for the function of small-scale machines. Here we demonstrate experimentally and theoretically that superlubricity in contacts lubricated by lamellar solids might be eliminated due to torque-induced reorientation coupled to lateral motion.
Filippov, D.V. +4 more
openaire +6 more sources
Progress in Superlubricity Across Different Media and Material Systems—A Review
Frontiers in Mechanical Engineering, 2022 Superlubricity is a terminology often used to describe a sliding regime in which the adhesion leading to friction or resistance to sliding literally vanishes.
Aditya Ayyagari +3 more
doaj +1 more source
Superlubricity through graphene multilayers between Ni(111) surfaces [PDF]
, 2013 A single graphene layer placed between two parallel Ni(111) surfaces screens the strong attractive force and results in a significant reduction of adhesion and sliding friction.
Cahangirov, S. +2 more
core +2 more sources
Predicting the lifetime of superlubricity [PDF]
EPL (Europhysics Letters), 2015 The concept of superlubricity has recently called upon notable interest after the demonstration of ultralow friction between atomistically smooth surfaces in layered materials. However, the energy dissipation process conditioning the sustainability of superlubric state has not yet been well understood.
Wang, A.L., He, Q.-C., Xu, Z.P.
openaire +3 more sources
Microscale Contact Electrification with Unprecedented High Intrinsic Charge Density. [PDF]
SmallWith the atomically flat contact interface by a microscale graphite slider and polytetrafluoroethylene, microscale contact electrification with high contact efficiency is achieved. The developed microscale triboelectric nanogenerator exhibits a record‐high intrinsic triboelectric charge density of 2.6 mC m−2, which is attributed to the greatly enhanced
Chen C +8 more
europepmc +2 more sources
Gas-Phase Lubrication of ta-C by Glycerol and Hydrogen Peroxide. Experimental and Computer Modeling [PDF]
, 2010 Tetrahedrally coordinated hydrogen-free amorphous diamond-like carbon coating (denoted as ta-C) presents ultralow friction under boundary lubrication conditions at 80 °C in presence of OH-containing molecules.
De Barros Bouchet, Maria-Isabel +6 more
core +1 more source
Accurate Measurement of the Cleavage Energy of Graphite [PDF]
, 2015 The basal plane cleavage energy (CE) of graphite is a key material parameter for understanding many of the unusual properties of graphite, graphene, and carbon nanotubes.
Dai, Shuyang +5 more
core +2 more sources