Results 21 to 30 of about 1,483 (193)
Unravelling friction anisotropy by atomic force microscopy. [PDF]
J MicroscAbstract Friction plays a crucial role in both natural phenomena, from the flow of blood cells to earthquakes, and technological applications, from car engines to wind turbines. One of the most fundamental aspects of tribology is friction anisotropy, that is, the dependence of the friction force vector on the direction of sliding.
Cafolla C, Campione M.
europepmc +2 more sources
Superlubric Graphullerene. [PDF]
Nano LettGraphullerene (GF), an extended quasi-two-dimensional network of C60 molecules, is proposed as a multicontact platform for constructing superlubric interfaces with layered materials. Such interfaces are predicted to present very small and comparable sliding energy corrugation regardless of the identity of the underlying flat layered material surface ...
Ying P, Hod O, Urbakh M.
europepmc +3 more sources
Macro-Superlubricity Induced by Synergistic Effect of Molybdenum Carbide/Molybdenum Disulfide Heterojunction and Conformation-Transformable Ethylene Glycol Molecule. [PDF]
Adv MaterMacroscopic solid–liquid synergistic superlubricity based on two‐dimensional (2D) materials and liquid molecules integrates the low interlayer shear strength of 2D materials with advantages of liquid superlubricity, significantly reducing friction and ...
Ma X +7 more
europepmc +2 more sources
Progress in Superlubricity Across Different Media and Material Systems—A Review [PDF]
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 +2 more sources
Water-based superlubricity in vacuum
Friction, 2018 This study achieved water-based superlubricity with the lubrication of H3PO4 solution in vacuum (highest vacuum degree
Chen Xiao +8 more
doaj +2 more sources
Water molecules on the liquid superlubricity interfaces achieved by phosphoric acid solution
Biosurface and Biotribology, 2018 The superlubricity mechanism of phospholipid molecules on biological surfaces and interfaces has been receiving much attention. Since the superlubricity can be achieved with a phosphoric acid aqueous solution, the interaction of the phosphate group with ...
Yuan Gao +4 more
doaj +2 more sources
Electrically Tunable Friction: From Sticky to Slippery with Ionic Hydrogels. [PDF]
Adv MaterThis work demonstrates electrically tunable friction “from sticky to slippery” using ionic hydrogels, achieving reversible more‐than‐fifty‐fold modulation without liquid lubricants. An electric field extracts a salt‐rich interfacial layer that dramatically reduces friction.
Liu C +9 more
europepmc +2 more sources
Superlubricity, a state where friction between two contact surfaces is nearly zero, has a great potential to revolutionize various mechanical systems by significantly reducing energy dissipation and enhancing efficiency. It can be realized either by structural incommensurate contact between crystalline surfaces or by creating highly passive interfaces ...
Chen, Cheng +5 more
openaire +3 more sources
Fully automatic transfer and measurement system for structural superlubric materials [PDF]
Nature Communications, 2023 Structural superlubricity, a state of nearly zero friction and no wear between two contact surfaces under relative sliding, holds immense potential for research and application prospects in micro-electro-mechanical systems devices, mechanical engineering,
Li Chen +6 more
doaj +2 more sources
Structural superlubricity triboelectric nanogenerator with negligible wear and high triboelectrification efficiency [PDF]
Nature CommunicationsTriboelectric nanogenerators (TENGs) can efficiently convert weak mechanical energy into electricity, making them suitable for small-scale and distributed power supply demanded by the Internet of Things. However, the inevitable friction and wear not only
Chaojie Chen +6 more
doaj +2 more sources