Results 31 to 40 of about 1,178 (193)
Superlubric Polycrystalline Graphene Interfaces [PDF]
Nature Communications, 2021 Abstract The effect of corrugated grain boundaries on the frictional properties of extended graphitic contacts incorporating a polycrystalline surface are investigated. The friction is found to be dominated by shear induced buckling and unbuckling of corrugated grain boundary dislocations, leading to a nonmonotonic behavior of friction with ...
Xiang Gao +3 more
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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
Design of Superlubricity System Using Si<sub>3</sub>N<sub>4</sub>/Polyimide as the Friction Pair and Nematic Liquid Crystals as the Lubricant. [PDF]
Polymers (Basel), 2023 Polyimide (PI) is a high-performance engineering plastic used as a bearing material. A superlubricity system using Si3N4/PI as the friction pair and nematic liquid crystals (LCs) as the lubricant was designed.
Gao X +5 more
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Investigation of the running-in process in photoinduced superlubricity
Frontiers in Materials, 2023 Photoinduced superlubricity on TiO2 surfaces is a newfound phenomenon which draws researchers’ attention. This study provides a new method to achieve superlubricity (COF<0.01) with an external light field. However, photoinduced superlubricity can only
Ke Han +4 more
doaj +1 more source
Physical Review Letters, 2004 Using a home-built frictional force microscope that is able to detect forces in three dimensions with a lateral force resolution down to 15 pN, we have studied the energy dissipation between a tungsten tip sliding over a graphite surface in dry contact.
Dienwiebel, M. +5 more
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Friction, 2020 Superlubricity has been developing very rapidly in recent years as a new and important area in tribology. Many new phenomena and materials, as well as some new mechanisms in both liquid and solid superlubricity have been obtained.
Jianbin Luo, Xiang Zhou
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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.
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The role of lubricant and carbon surface in achieving ultra- and superlow friction
, 2022 S.247-273In the presented work, tribological interactions of tetrahedral amorphous carbon (ta-C) coatings with variations of sp3 content have been systematically studied in the boundary lubrication regime with emphasis on fatty acid-based lubricants ...
Weihnacht, Volker, Makowski, Stefan
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Overcoming friction and steps towards superlubricity: A review of underlying mechanisms
Applied Surface Science Advances, 2021 Herein, we present a topical review of the advances and the mechanisms involved in achieving superlubricity - the regime of friction in which the coefficient of friction (COF) is less than 0.01. In light of the race towards achieving superlubricity on an
Himanshu Shekhar, Ravikumar Dumpala
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Superlubricity in Layered Nanostructures [PDF]
, 2014 Interaction between two surfaces in relative motion can give rise to energy dissipation and hence sliding friction. A significant portion of the energy is dissipated through the creation of non-equilibrium phonons. Recent advances in material synthesis have made the production of specific single layer honeycomb structures and their multilayer phases ...
Cahangirov, S., Ciraci, S.
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