Graphene superlubricity: A review
Friction, 2023 Superlubricity has drawn substantial attention worldwide while the energy crisis is challenging human beings. Hence, numerous endeavors are bestowed to design materials for superlubricity achievement at multiple scales.
Xiangyu Ge, Qiuyu Shi, Yanfei Liu
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Macroscale, humidity-insensitive, and stable structural superlubricity achieved with hydrogen-free graphene nanoflakes [PDF]
Nature CommunicationsAchieving 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
Macroscale Superlubricity on Nanoscale Graphene Moiré Structure‐Assembled Surface via Counterface Hydrogen Modulation [PDF]
Advanced ScienceInterlayer 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
2D Nanomaterials Toward Function-Ready Superlubricity in Advanced Microsystems. [PDF]
Adv MaterA 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
Origins of Graphite Resistivity: Decoupling Stacking Fault and Rotational Misorientation. [PDF]
Adv 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
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
Low friction of superslippery and superlubricity: A review
Friction, 2022 The issues regarding energy dissipation and component damage caused by the interface friction between a friction pair attract enormous attention to friction reduction. The key-enabling technique to realize friction reduction is the use of lubricants. The
Zhiguang Guo, Weimin Liu, Jianbin Luo
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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
Robust microscale structural superlubricity between graphite and nanostructured surface [PDF]
Nature Communications, 2023 Structural superlubricity is a state of nearly zero friction and no wear between two contacted solid surfaces. However, such state has a certain probability of failure due to the edge defects of graphite flake.
Xuanyu Huang +9 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