Results 21 to 30 of about 2,950 (201)

Surface Adsorbate Fluctuations and Noise in Nanoelectromechanical Systems [PDF]

open access: yes, 2011
Physisorption on solid surfaces is important in both fundamental studies and technology. Adsorbates can also be critical for the performance of miniature electromechanical resonators and sensors. Advances in resonant nanoelectromechanical systems (NEMS),
Callegari, C.   +3 more
core   +2 more sources

Chemical effects on the sliding friction of Ag and Au(111)

open access: yesFriction, 2017
We have investigated the sliding friction behavior of metallic couples with different enthalpy of mixing or reaction by friction force microscopy. Comparing the friction behavior of miscible and immiscible couples we find that in the first case friction ...
H. E. Ko   +3 more
doaj   +1 more source

Molecular dynamics of cleavage and flake formation during the interaction of a graphite surface with a rigid nanoasperity [PDF]

open access: yes, 2009
Computer experiments concerning interactions between a graphite surface and the rigid pyramidal nanoasperity of a friction force microscope tip when it is brought close to and retracted from the graphitic sample are presented.
Khomenko, Oleksii Vitaliiovych   +3 more
core   +3 more sources

Friction vs. Area Scaling of Superlubric NaCl-Particles on Graphite

open access: yesLubricants, 2019
Structural lubricity is an intriguing tribological concept, where extremely low friction is anticipated, if two surfaces in relative motion do not share the same lattice structure and consequently instabilities originating from interlocking surface ...
Felix Hartmuth   +3 more
doaj   +1 more source

Static and dynamic friction in sliding colloidal monolayers [PDF]

open access: yes, 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

Stability of low-friction surface sliding of nanocrystals with rectangular symmetry and application to W on NaF(001) [PDF]

open access: yes, 2010
We investigate the stability of low-friction sliding of nanocrystal with rectangular atomic arrangement on rectangular lattices, for which analytical results can be obtained.
de Wijn, Astrid S., Fasolino, Annalisa
core   +4 more sources

Macroscale Superlubricity on Nanoscale Graphene Moiré Structure-Assembled Surface via Counterface Hydrogen Modulation. [PDF]

open access: yesAdv Sci (Weinh)
By sphere‐triggered strain engineering, the graphene moiré structure (GMS)‐assembled surfaces are formed. The superlubricity between GMS‐assembled and DLC25 surfaces in wide ranges of normal load (7–11 N), sliding velocity (0.5–27 cm s−1), contact area (0.4×104–3.7×104 µm2), and contact pressure (0.19–1.82 GPa) can be achieved based on assembly face ...
Wang Y   +4 more
europepmc   +2 more sources

Importance of surface oxide for the tribology of a Zr-based metallic glass

open access: yesFriction, 2017
Thermally grown surface oxide layers dominate the single-asperity tribological behavior of a Zr60Cu30Al10 glass. Increase in oxidation time leads to an increased contribution of shearing and a corresponding decreased contribution of ploughing to friction.
S. J. Kang   +5 more
doaj   +1 more source

A comparative study of the nanoscale and macroscale tribological attributes of alumina and stainless steel surfaces immersed in aqueous suspensions of positively or negatively charged nanodiamonds

open access: yesBeilstein Journal of Nanotechnology, 2017
This article reports a comparative study of the nanoscale and macroscale tribological attributes of alumina and stainless steel surfaces immersed in aqueous suspensions of positively (hydroxylated) or negatively (carboxylated) charged nanodiamonds (ND ...
Colin K. Curtis   +3 more
doaj   +1 more source

Influence of Alkali Ions on Tribological Properties of Silicon Surface [PDF]

open access: yes, 2015
Tribological properties of surfaces (friction, adhesion and wear) provide challenging limitations to the design of reliable machines on the micro- and nanometer scale as the surface to volume area increases and volume, mass and inertia of the mobile ...
Fabianowski, Wojciech   +5 more
core   +2 more sources

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