Results 71 to 80 of about 883 (175)

Friction force microscopy of tribochemistry and interfacial ageing for the SiOx/Si/Au system

open access: yesBeilstein Journal of Nanotechnology, 2018
Friction force microscopy was performed with oxidized or gold-coated silicon tips sliding on Au(111) or oxidized Si(100) surfaces in ultrahigh vacuum.
Christiane Petzold   +2 more
doaj   +1 more source

Controlling Friction With External Electric or Magnetic Fields: 25 Examples

open access: yesFrontiers in Mechanical Engineering, 2019
Studies of the fundamental origins of friction have progressed rapidly in recent years, yielding valuable information on the relative contributions of electronic, magnetic, electrostatic, and phononic dissipative mechanisms.
Jacqueline Krim
doaj   +1 more source

Inhomogeneous Nanoscale Conductivity and Friction on Graphite Terraces Explored via Atomic Force Microscopy

open access: yesLubricants
The interplay of conductivity and friction in layered materials such as graphite is an open area of investigation. Here, we measure local conductivity and friction on terraces of freshly cleaved highly oriented pyrolytic graphite via atomic force ...
A. Kutay Ozyurt, Mehmet Z. Baykara
doaj   +1 more source

Atomistic modeling of tribological properties of Pd and Al nanoparticles on a graphene surface

open access: yesBeilstein Journal of Nanotechnology, 2018
Background: The frictional properties of nanoparticles have been studied to gain insight into the fundamental origin of sliding friction.Results: Using molecular dynamics we investigate frictional properties of aluminum and palladium nanoparticles ...
Alexei Khomenko   +3 more
doaj   +1 more source

Quantitative Nanotribology by AFM:  A Novel Universal Calibration Platform

open access: yes, 2016
The quantitative determination of friction forces by atomic force microscopy (AFM) in nanotribology requires the conversion of the output voltage signal of the sector area-sensitive photodiode to force using (a) the torsional spring constant of the ...
Ewa Tocha (2488000)   +2 more
core   +1 more source

Stick–slip behaviour on Au(111) with adsorption of copper and sulfate

open access: yesBeilstein Journal of Nanotechnology, 2015
Several transitions in the friction coefficient with increasing load are found on Au(111) in sulfuric acid electrolyte containing Cu ions when a monolayer (or submonolayer) of Cu is adsorbed.
Nikolay Podgaynyy   +4 more
doaj   +1 more source

Fundamental Mechanisms Underlying the Effectiveness of Nanoparticle Additives to Lubricants: 25 Examples Linking Nano- to Macroscale Friction

open access: yesLubricants
Studies of the fundamental origins of friction have undergone rapid acceleration in recent years by providing valuable information on the nanoscale mechanisms responsible for friction at the macroscopic level.
Jacqueline Krim, Alex I. Smirnov
doaj   +1 more source

Superlubricity of Graphite Induced by Multiple Transferred Graphene Nanoflakes

open access: yesAdvanced Science, 2018
2D or 3D layered materials, such as graphene, graphite, and molybdenum disulfide, usually exhibit superlubricity properties when sliding occurs between the incommensurate interface lattices.
Jinjin Li, Tianyang Gao, Jianbin Luo
doaj   +1 more source

Atomic force microscopy studies of nanotribology and nanomechanics

open access: yes, 2007
This thesis comes within the scope of tribology studies at the nanometer scale. The experimental techniques used in this work are essentially related to atomic force microscopy, which gives a direct access to the topography and forces of the studied ...
Palaci, Ismaël
core   +1 more source

A multiscale tribological study of nacre : Evidence of wear nanomechanisms controlled by the frictional dissipated power [PDF]

open access: yes, 2012
Sheet nacre is a hybrid biocomposite with a multiscale structure, including nanograins of CaCO3 (97% wt.% – 40 nm in size) and two organic matrices: (i) the “interlamellar” mainly composed of β-chitin and proteins, and (ii) the “intracrystalline” mainly ...
Stempflé, Philippe   +5 more
core  

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