Graphene superlubricity: a review
WebMay 14, 2015 · The system includes graphene and graphene oxide formed by an exfoliation process or solution processing method to dispose graphene and/or graphene oxide onto a substrate. The system further includes an opposing wear member disposed on another substrate and a gas atmosphere of an inert gas like N2, ambient, a humid … WebAug 10, 2024 · In this work, we present a detailed study of structural superlubricity in bilayer graphene, h-BN, MoS 2, and the novel material blue phosphorene (b-P) using …
Graphene superlubricity: a review
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WebSep 5, 2024 · The sliding friction of a graphene flake atop strained graphene substrates is studied using molecular dynamics simulation. We demonstrate that in this superlubric system, friction can be reduced nonmonotonically by applying strain, which differs from previously reported results on various 2D materials. The critical strain needed for … WebJun 24, 2024 · After a running-in process under ambient conditions, superlubricity was achieved using 2D heterostructures such as graphene/MoS 2, and a COF of 10 –3 …
WebMay 1, 2024 · In this review, the fundamental mechanisms for superlubricity that are achieved with graphene‐family materials are outlined in detail, and the problems concerning graphene superlubricity and ... WebIn physics (specifically tribology), superlubricity is a regime of motion in which friction vanishes or very nearly vanishes. What is a "vanishing" friction level is not clear, which makes the term quite vague. As an ad hoc definition, a kinetic coefficient of friction less than 0.01 can be adopted. This definition also requires further discussion and clarification.
Webvan der Waals (vdW) homo/heterostructures are ideal systems for studying interfacial tribological properties such as structural superlubricity. Previous studies concentrated on the mechanism of translational motion in vdW interfaces. However, detailed mechanisms and general properties of the rotational motion are barely explored. Here, we combine … Web开馆时间：周一至周日7:00-22:30 周五 7:00-12:00; 我的图书馆
WebDec 16, 2024 · The interfacial friction performances of graphene covered and hydrogen-terminated diamond surfaces were investigated comparatively by first-principles calculations within density functional theory (DFT). Both systems exhibit similar excellent lubricating effects under small load, but the graphene covered interface presents small friction than …
WebAug 24, 2024 · Figure 1. 2 × 2 simulation cell of graphene layers rotated with respect to each other by 21. 8 ∘ and forming the commensurate moiré pattern with coprime indices (2,1) in the absence of defects (a) and with a reconstructed vacancy (b). The upper and lower layers are colored in dark and light gray, respectively. (a) The atom that is removed … optometrist el paso eastWebMay 15, 2012 · Figure 2 In situ manipulation of a graphite flake in a SEM. (a)–(i) are the selected frames from Supplemental Movie 1 []; the orientation denoted by the arrow in … portrait of nedWebApr 7, 2024 · Electrochemical exfoliation of graphene is an environmentally friendly method, which enables mass production. Herein, three ionic liquids (ILs) with the same imidazole cation were used to exfoliate graphite into functionalized graphene, as a lubricant additive in an acetonitrile solution. Chemical and structural characterization revealed the … optometrist education costWebFeb 13, 2024 · In this review, the fundamental mechanisms for superlubricity that are achieved with graphene‐family materials are outlined in detail, and the problems concerning graphene superlubricity and ... optometrist elizabeth city ncWebExplore 16 research articles published by the author Ze Liu from Wuhan University in the year 2024. The author has contributed to research in topic(s): Amorphous metal & Superlubricity. The author has an hindex of 22, co-authored 72 publication(s) receiving 1825 citation(s). Previous affiliations of Ze Liu include Tsinghua University & Nanchang … optometrist east greenbush nyWebMar 1, 2024 · In the field of solid superlubricity, more materials with superlubricity have been observed, including graphene-to-graphene surfaces, highly oriented pyrolytic … portrait of nasir al din shahWebMar 24, 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 … optometrist education