Results 21 to 30 of about 20,603 (183)

Macroscale structural superlubricity: Dynamic evolution of tribolayers in two-dimensional materials under extreme pressure [PDF]

Nano Energy
Achieving macroscale structural superlubricity with two-dimensional (2D) materials under ultrahigh contact pressure in ambient condition is particularly challenging.
Fan, Z, Ge, X, Liskiewicz, TW, Liu, Y, Wang, W, Yu, S, Zhang, J, Zhang, R   +7 more
core   +3 more sources

Macroscale superlubricity achieved via hydroxylated hexagonal boron nitride nanosheets with ionic liquid at steel/steel interface

Friction, 2021
Macroscale superlubricity is a prospective strategy in modern tribology to dramatically reduce friction and wear of mechanical equipment; however, it is mainly studied for point-to-surface contact or special friction pairs in experiments.
Zhiwen Zheng, Xiaolong Liu, Guowei Huang, Haijie Chen, Hongxiang Yu, D. Feng, Dan Qiao   +6 more
semanticscholar   +3 more sources

Synergistic Microgel-Reinforced Hydrogels as High-Performance Lubricants. [PDF]

ACS Macro Lett, 2020
The ability to create a superlubricious aqueous lubricant is important for various biological and technological applications. Here, a nonlipid biolubricant with strikingly low friction coefficients is fabricated (patented) by reinforcing a fluid-like ...
Hu J, Andablo-Reyes E, Soltanahmadi S, Sarkar A.   +3 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

Microscale Contact Electrification with Unprecedented High Intrinsic Charge Density. [PDF]

Small
With the atomically flat contact interface by a microscale graphite slider and polytetrafluoroethylene, microscale contact electrification with high contact efficiency is achieved. The developed microscale triboelectric nanogenerator exhibits a record‐high intrinsic triboelectric charge density of 2.6 mC m−2, which is attributed to the greatly enhanced
Chen C, Nie J, An J, Xia X, Wu Z, Wang H, Cui H, Zheng Q, Zi Y.   +8 more
europepmc   +2 more sources

Electrically Tunable Friction: From Sticky to Slippery with Ionic Hydrogels. [PDF]

Adv Mater
This 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, Yao Y, Wang Y, Zhou Q, Zhao Z, Qiao C, Sun Y, Meng Y, Tian Y, Zeng H.   +9 more
europepmc   +2 more sources

Perspectives of 2D MXene Tribology. [PDF]

Adv Mater, 2023
The past two years have witnessed increased experimental and theoretical efforts toward studying MXenes’ mechanical and tribological properties when used as lubricant additives, reinforcement phases in composites, or solid lubricant coatings. The most promising results in MXene tribology are summarized, future important problems to be pursued further ...
Rosenkranz A, Righi MC, Sumant AV, Anasori B, Mochalin VN.   +4 more
europepmc   +2 more sources

Macroscale Superlubricity and Polymorphism of Long-Chain n-Alcohols [PDF]

ACS Applied Materials & Interfaces, 2020
Simple n -alcohols, such as 1-dodecanol, show anomalous film-forming and friction behaviour under elastohydrodynamic lubrication (EHL) conditions, as found inside bearings and gears. Using tribometer, diamond anvil cell (DAC), and differential scanning calorimetry (DSC) experiments, we show that ...
Tom Reddyhoff, James P. Ewen, Pushkar Deshpande, Mark D. Frogley, Mark D. Welch, Wren Montgomery   +5 more
openaire   +5 more sources

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

Adv Sci (Weinh)
Interfacial mechanical properties of MoS2/Au(111) heterostructures are revealed by advanced experimental and computational methods. The developed semi‐anisotropic interlayer potential (SAIP) accurately predicts moiré‐driven out‐of‐plane corrugation, aligning with experimental observations.
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

Superlubricity induced by partially oxidized black phosphorus on engineering steel

Friction, 2023
Macroscale superlubricity has attracted increasing attention owing to its high significance in engineering and economics. We report the superlubricity of engineering materials by the addition of partially oxidized black phosphorus (oBP) in an oleic acid (
Kai Gao, Jianguo Jiao, Zheng Wang, Guoxin Xie, Jianbin Luo   +4 more
doaj   +1 more source