Results 11 to 20 of about 1,899 (209)

Macroscale Superlubricity Enabled by Graphene‐Coated Surfaces

Advanced Science, 2020
Friction and wear remain the primary modes for energy dissipation in moving mechanical components. Superlubricity is highly desirable for energy saving and environmental benefits.
Xia Zhang, Keke Chang, Yao Lu
exaly   +2 more sources

Superlubricity of Graphite Induced by Multiple Transferred Graphene Nanoflakes

Advanced Science, 2018
2D or 3D layered materials, such as graphene, graphite, and molybdenum disulfide, usually exhibit superlubricity properties when sliding occurs between the incommensurate interface lattices.
Jianbin Luo, Jinjin Li
exaly   +2 more sources

Electrostatic in-plane structural superlubric actuator [PDF]

Nature Communications
Micro actuators are widely used in NEMS/MEMS for control and sensing. However, most are designed with suspended beams anchored at fixed points, causing two main issues: restricted actuated stroke and movement modes, and reduced lifespan due to fatigue ...
Xuanyu Huang, Xiaojian Xiang, Chuang Li, Jinhui Nie, Yifan Shao, Zhiping Xu, Quanshui Zheng   +6 more
doaj   +2 more sources

Unraveling the Interfacial Properties of Twisted Single-Crystal Au(111)/MoS₂ Heterostructures: A Pathway to Robust Superlubricity. [PDF]

Adv Sci (Weinh)
A comprehensive study of monolayer MoS2 on a single‐crystal Au(111) surface is reported, combining ultra‐high vacuum scanning probe microscopy with advanced computational methods.
Yao Y, Song Y, Wu B, Scherb S, Huang S, Hinaut A, Glatzel T, Meyer E, Liu Z, Ouyang W.   +9 more
europepmc   +2 more sources

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

Adv 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

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, Yang F, Wu T, Wang Y, Zheng Q, Peng D, Wu Z.   +6 more
europepmc   +2 more sources

Unravelling friction anisotropy by atomic force microscopy. [PDF]

J Microsc
Abstract 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 Lett
Graphullerene (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

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, Wengen Ouyang, Michael Urbakh, Oded Hod   +3 more
openaire   +4 more sources

Editorial: Superlubricity across the scales. [PDF]

Front Chem, 2022
Article talks about how while the idea of frictionless surfaces and the associated implications of vanishing energy losses during mechanical motion have been part of science fiction culture, scientists in the real world work toward realizing this ambitious goal that was once thought to be unattainable.
Baykara MZ, Berman D, Rosenkranz A.
europepmc   +6 more sources