Results 21 to 30 of about 198 (130)

Superlubricity induced by partially oxidized black phosphorus on engineering steel

open access: yesFriction, 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   +4 more
doaj   +1 more source

Progress in Superlubricity Across Different Media and Material Systems—A Review

open access: yesFrontiers in Mechanical Engineering, 2022
Superlubricity is a terminology often used to describe a sliding regime in which the adhesion leading to friction or resistance to sliding literally vanishes.
Aditya Ayyagari   +3 more
doaj   +1 more source

Achieving macroscale superlubricity with ultra-short running-in period by using polyethylene glycol-tannic acid complex green lubricant

open access: yesFriction, 2023
Superlubricating materials can greatly reduce the energy consumed and economic losses by unnecessary friction. However, a long pre-running-in period is indispensable for achieving superlubricity; this leads to severe wear on the surface of friction pairs
Changhe Du   +8 more
doaj   +1 more source

Achieving superlubricity with 2D transition metal carbides (MXenes) and MXene/graphene coatings

open access: yesMaterials Today Advances, 2021
Two-dimensional (2D) materials have demonstrated unique friction and antiwear properties unmatched by their bulk (3D) counterparts. A relatively new, large and quickly growing family of two-dimensional early transition metal carbides and nitrides (MXenes)
S. Huang   +3 more
doaj   +1 more source

Macroscale superlubricity enabled by graphene nanoscroll formation [PDF]

open access: yesScience, 2015
Slip sliding away Many applications would benefit from ultralow friction conditions to minimize wear on the moving parts such as in hard drives or engines. On the very small scale, ultralow friction has been observed with graphite as a lubricant. Berman et al.
Diana Berman   +4 more
openaire   +1 more source

Macroscale superlubricity achieved between zwitterionic copolymer hydrogel and sapphire in water

open access: yesMaterials & Design, 2020
Achievement of macroscale superlubricity from the hydration effect could provide a potential application for artificial articular cartilage. In this work, two zwitterionic polymers, 2-methacryloyloxyethyl phosphorylcholine (MPC) and sulfobetaine ...
Zhongnan Wang   +3 more
doaj   +1 more source

Understanding and Preventing Lubrication Failure at the Carbon Atomic Steps

open access: yesSmall, Volume 19, Issue 37, September 13, 2023., 2023
At the graphene step edge, the armchair (AC) structure gives only a minor topographic effect on friction, while the zigzag (ZZ) structure induces friction two orders of magnitude larger than the basal friction. The high‐friction ZZ edge becomes superlubricious through reconstructing to the (5,7) azulene‐like structure upon thermal annealing in an inert
Wenmeng Yan   +13 more
wiley   +1 more source

Macro-superlubricity in sputtered MoS2-based films by decreasing edge pinning effect

open access: yesFriction, 2023
To date, MoS2 can only be achieved at microscale. Edge pinning effect caused by structure defects is the most obvious barrier to expand the size of structural superlubricity to macroscale.
Chunmeng Dong   +8 more
doaj   +1 more source

Innovative Technology for Self‐Powered Sensors: Triboelectric Nanogenerators

open access: yesAdvanced Sensor Research, Volume 2, Issue 5, May 2023., 2023
Internet of Things and wearable technology's quick development have opened up a vast market for sensor systems. Triboelectric nanogenerators (TENGs) efficiently provide crucial infrastructure for a new generation of sensing devices that gather data using several self‐powered sensors in abundance.
Nannan Wang   +4 more
wiley   +1 more source

Liquid superlubricity of lubricants containing hydroxyl groups and their aqueous solution under rolling/sliding conditions

open access: yesFriction, 2023
Macroscale rolling/sliding conditions are in the superlubricity, a little-studied topic so far. The purpose of this paper is to examine the formation of elastohydrodynamic lubrication (EHL) films by water-based lubricants (glycerol and polyethylene ...
Tomáš Poláček   +2 more
doaj   +1 more source

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