Results 51 to 60 of about 1,483 (193)

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

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

Geometry effect of different PTFE fillers on self-lubricating PF composites: Mechanical and tribological properties

Journal of Materials Research and Technology
In order to further improve the performance of polytetrafluoroethylene (PTFE) as lubricant additives, PTFE fiber bundles (PTFE-F) were prepared by wet spinning to enhance phenolic resin (PF), and PTFE powders (PTFE-P) were used as a contrast phase.
Wenli Zhang, Xi Shu, Shiyun Cheng, Xiaolei Li, Tao Hu, Chenhui Zhang   +5 more
doaj   +1 more source

Micro/atomic-scale vibration induced superlubricity

Friction, 2020
With the rapid development of industry, the inconsistency between the rapid increase in energy consumption and the shortage of resources is becoming significant.
Shuai Shi, Dan Guo, Jianbin Luo
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

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

Polarization Dynamics in Ferroelectrics: Insights Enabled by Machine Learning Molecular Dynamics

Advanced Science, EarlyView.
Machine learning molecular dynamics is presented as a route to capture polarization switching, domain wall kinetics, topological polar textures, and polar mechanical coupling beyond the limits of conventional atomistic methods. This Perspective surveys recent progress and identifies key methodological directions, including long‐range electrostatics ...
Dongyu Bai, Ri He, Junxian Liu, Liangzhi Kou   +3 more
wiley   +1 more source

Tribological properties of carbon fiber reinforced UHMWPE incorporated with silanized whisker carbon nanotubes under water lubrication

Journal of Materials Research and Technology
The inadequate wear resistance and limited load capacity confine the application of ultra-high molecular weight polyethylene (UHMWPE) in water-lubricated bearings.
Jianyong Lan, Tianyi Han, Tao Hu, Xiaozhi Chen, Xiaolei Li, Chenhui Zhang   +5 more
doaj   +1 more source

Mixing and Compounding of Graphene/High Density Polyethylene Nanocomposites Using Twin‐Screw and Octa‐Screw Extrusions: A Comparative Study

Journal of Applied Polymer Science, Volume 143, Issue 42, November 10, 2026.
Advanced octa‐screw extrusion offers a breakthrough in compounding high‐viscosity polymer nanocomposites. By comparing twin‐ and octa‐screw extruders, this study reveals that the octa‐screw's unique intermeshing geometry achieves superior graphene exfoliation while preventing thermal degradation.
Cheng‐Ying Liu, Akira Ishigami, Hiroshi Ito   +2 more
wiley   +1 more source

Controllable superlubricity achieved with mixtures of green ionic liquid and glycerol aqueous solution via humidity

, 2022
In this work, superlubricity between steel surfaces lubricated by mixtures of [Choline][Proline] ([Cho][Pro]) ionic liquid and glycerol aqueous solution has been reached by using a rotating tribometer.
Shi, Yijun,, Larsson, Roland,, Hua, Jing,, Björling, Marcus,   +3 more
core   +1 more source