Results 11 to 20 of about 1,483 (193)

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

open access: yesAdvanced Science
Interlayer incommensurateness slippage is an excellent pathway to realize superlubricity of van der Waals materials; however, it is instable and heavily depends on twisted angle and super‐smooth substrate which pose great challenges for the practical ...
Yongfu Wang   +4 more
doaj   +3 more sources

Macroscale, humidity-insensitive, and stable structural superlubricity achieved with hydrogen-free graphene nanoflakes [PDF]

open access: yesNature Communications
Achieving solid superlubricity in high-humidity environments is of great practical importance yet remains challenging nowadays, due to the complex physicochemical roles of water and concomitant oxidation on solid surfaces.
Ruiyun Li   +4 more
doaj   +3 more sources

Torque and Twist against Superlubricity [PDF]

open access: yesPhysical 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
core   +8 more sources

Superlubricity of graphene nanoribbons on gold surfaces [PDF]

open access: yesScience, 2016
A golden opportunity for graphene Reducing friction can limit wear and improve the energy efficiency of mechanical devices. Graphene is a promising lubricant because the friction between sheets is minuscule under certain circumstances. Kawai et al.
Kawai, Shigeki   +11 more
core   +10 more sources

2D Nanomaterials Toward Function-Ready Superlubricity in Advanced Microsystems. [PDF]

open access: yesAdv Mater
A unified framework links structural and transformation superlubricity with microsystem functions and deployment requirements. Mechanisms, device architectures, integration strategies, AI‐guided discovery, and benchmarking protocols are connected to define function‐ready superlubricity in advanced microsystems.
Geng Y, Yang J, Yang Y.
europepmc   +2 more sources

Role of surface roughness in superlubricity [PDF]

open access: yesJournal of Physics: Condensed Matter, 2006
11 pages, 17 figures, format ...
Tartaglino, Ugo   +2 more
openaire   +5 more sources

Shear-Induced Emergence of Aromatic Superlow-Friction Interfaces in Amorphous Carbon: Triggering Chemical Impurities and Atomic-Scale Mechanisms. [PDF]

open access: yesAdv Sci (Weinh)
High‐throughput quantum‐mechanical simulations reveal that amorphous carbon undergoes shear‐driven structural transformation into aromatic, graphene‐like interfaces. This mechanochemical process is governed by dopant chemistry: dopants with valency less than four promote the emergence of superlow‐friction amorphous graphene, whereas tetra‐valent ...
Kuwahara T   +4 more
europepmc   +2 more sources

Macroscale Superlubricity of Black Phosphorus Quantum Dots

open access: yesLubricants, 2022
In the present work, Black Phosphorus Quantum Dots (BPQDs) were synthesized via sonication-assisted liquid-phase exfoliation. The average size of the BPQDs was 3.3 ± 0.85 nm.
Penghui Gong   +4 more
doaj   +2 more sources

Superlubricity of Materials: Progress, Potential, and Challenges. [PDF]

open access: yesMaterials (Basel), 2023
This review paper provides a comprehensive overview of the phenomenon of superlubricity, its associated material characteristics, and its potential applications.
Ramezani M   +3 more
europepmc   +2 more sources

Origins of Graphite Resistivity: Decoupling Stacking Fault and Rotational Misorientation. [PDF]

open access: yesAdv Sci (Weinh)
Interfacial dislocations critically influence interlayer transport in van der Waals (vdW) materials, yet quantifying their individual contributions remains challenging. We measure graphite's c‐axis resistivity and develop a decoupling strategy, revealing a resistivity ratio of ∼4507:74:1 for rotational misorientations, stacking faults, and AB stacking,
Chen W   +6 more
europepmc   +2 more sources

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