Results 41 to 50 of about 2,518 (204)

Facile fabrication and tribological properties of self-lubricating polyurethane based on expanded graphite/paraffin for water lubricated bearings

Journal of Materials Research and Technology
To improve the tribological properties of polyurethane (PU) based water-lubricated bearings specifically under severe conditions, expanded graphite/paraffin (EG/paraffin) is synthesized as self-lubricating additives and incorporated into the polyurethane
Jiangbo Li, Wenli Zhang, Zijian Tang, Tao Hu, Xiaolei Li, Wei Wu, Chenhui Zhang   +6 more
doaj   +1 more source

Superlubricity - a new perspective on an established paradigm

, 2012
Superlubricity is a frictionless tribological state sometimes occurring in nanoscale material junctions. It is often associated with incommensurate surface lattice structures appearing at the interface.
G. A. Tomlinson, I. L. Singer, M. H. Müser, M. O. Robbins, Oded Hod, W. H. Bragg, Y. I. Frenkel   +6 more
core   +1 more source

Load and velocity boundaries of oil-based superlubricity using 1,3-diketone

Friction, 2023
The clarification of the critical operating conditions and the failure mechanism of superlubricity systems is of great significance for seeking appropriate applications in industry.
Yuyang Yuan, Tobias Amann, Yuwen Xu, Yan Zhang, Jingfu Chen, Chenqing Yuan, Ke Li   +6 more
doaj   +1 more source

Observation of Aubry transition in finite atom chains via friction

, 2015
The highly nonlinear many-body physics of a chain of mutually interacting atoms in contact with a periodic substrate gives rise to complex static and dynamical phenomena, such as structural phase transitions and friction.
Bylinskii, Alexei, Counts, Ian, Gangloff, Dorian, Vuletic, Vladan   +3 more
core   +1 more source

Water molecules on the liquid superlubricity interfaces achieved by phosphoric acid solution

Biosurface and Biotribology, 2018
The superlubricity mechanism of phospholipid molecules on biological surfaces and interfaces has been receiving much attention. Since the superlubricity can be achieved with a phosphoric acid aqueous solution, the interaction of the phosphate group with ...
Yuan Gao, Liran Ma, Yong Liang, Bohong Li, Jianbin Luo   +4 more
doaj   +1 more source

Ultralow friction of PEEK composites under seawater lubrication

Journal of Materials Research and Technology
Water-lubricating bearings made of polymer-matrix composites have provided a new approach to prolong the service lifetime of key component in marine propulsion system.
Tao Hu, Wenli Zhang, Minsong Wu, Weizhong Tang, Xiaozhi Chen, Xiaolei Li, Chenhui Zhang   +6 more
doaj   +1 more source

Macroscale superlubricity achieved between zwitterionic copolymer hydrogel and sapphire in water

Materials & 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, Jinjin Li, Yuhong Liu, Jianbin Luo   +3 more
doaj   +1 more source

Achieving superlubricity in DLC films by controlling bulk, surface, and tribochemistry [PDF]

, 2014
Superlubricity refers to a sliding regime in which contacting surfaces move over one another without generating much adhesion or friction [1]. From a practical application point of view, this will be the most ideal tribological situation for many moving ...
Ali Erdemir, Osman Eryilmaz
core   +1 more source

Atomistics of superlubricity [PDF]

Friction, 2014
Abstract Friction is a phenomenon observed ubiquitously in daily life, yet its nature is complicated. Friction between rough surfaces is considered to arise primarily because of macroscopic roughness. In contrast, interatomic forces dominate between clean and smooth surfaces.
openaire   +1 more source

Experimental advances in superlubricity [PDF]

Friction, 2014
Abstract Superlubricity, or structural lubricity, is a state that has two contacting surfaces exhibiting no resistance to sliding. This effect has been theoretically described to be possible between two completely clean single crystalline solid surfaces.
Zheng, Quanshui, Liu, Ze
openaire   +1 more source