Results 21 to 30 of about 203 (124)

Superlubricity of Materials: Progress, Potential, and Challenges. [PDF]

Materials (Basel), 2023
This review paper provides a comprehensive overview of the phenomenon of superlubricity, its associated material characteristics, and its potential applications.
Ramezani M, Ripin ZM, Jiang CP, Pasang T.   +3 more
europepmc   +2 more sources

Influence of Electrical Stimulation on the Friction Performance of LiPF₆-Based Ionic Liquids

Lubricants
This work studied the influence of the voltage parameters on the friction and superlubricity performances of LiPF6-based ionic liquids (ILs). The results show that the voltage direction and magnitude greatly affected the friction performances of ILs and ...
Xiangyu Ge, Xiaodong Wu, Qiuyu Shi, Yanfei Liu, He Liang   +4 more
doaj   +2 more sources

Contact mechanics and friction: Role of adhesion [PDF]

Friction
This paper presents an overview of the role of adhesion in various tribological phenomena. We discuss (1) adhesion and adhesive hysteresis in rough contacts, (2) adhesive contribution to dry friction, (3) properties of adhesive contacts under tangential ...
Valentin L. Popov, Qiang Li, Iakov A. Lyashenko   +2 more
doaj   +2 more sources

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

, 2021
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.
Tom, Reddyhoff, Pushkar, Deshpande, Mark D., Welch, Wren, Montgomery, James, Ewen, Mark, Frogley   +5 more
core   +2 more sources

Liquid Superlubricity Enabled by the Synergy Effect of Graphene Oxide and Lithium Salts. [PDF]

Materials (Basel), 2022
In this study, graphene oxide (GO) nanoflakes and lithium salt (LiPF(6)) were utilized as lubrication additives in ether bond−containing dihydric alcohol aqueous solutions (DA(aq)) to improve lubrication performances.
Ge X, Chai Z, Shi Q, Liu Y, Tang J, Wang W.   +5 more
europepmc   +2 more sources

Macroscale Superlubricity: Macroscale Superlubricity Enabled by Graphene‐Coated Surfaces (Adv. Sci. 4/2020) [PDF]

Advanced science, 2020
Zhang Z, Du Y, Huang S, Meng F, Chen L, Xie W, Chang K, Zhang C, Lu Y, Lin C, Li S, Parkin I, Guo D.   +12 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

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

Frontiers 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, Kazi Istiaque Alam, Diana Berman, Ali Erdemir   +3 more
doaj   +1 more source

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

Friction, 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, Tongtong Yu, Zishuai Wu, Liqiang Zhang, Ruilin Shen, Xiaojuan Li, Min Feng, Yange Feng, Daoai Wang   +8 more
doaj   +1 more source

Understanding and Preventing Lubrication Failure at the Carbon Atomic Steps

Small, 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, Fakhrul H. Bhuiyan, Chuan Tang, Liang Wei, Yilong Jiang, Seokhoon Jang, Yangqin Liu, Jiang Wu, Wen Wang, Yang Wang, Ashlie Martini, Linmao Qian, Seong H. Kim, Lei Chen   +13 more
wiley   +1 more source