Results 1 to 10 of about 229,580 (238)

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

Soft Lubrication [PDF]

Physical Review Letters, 2004
10 pages, 3 figures; to appear in Phys.
Skotheim, J. M., Mahadevan, L.
openaire   +3 more sources

Modulus adaptive lubricating prototype inspired by instant muscle hardening mechanism of catfish skin

Nature Communications, 2022
Stimuli responsive materials are interesting for applications in different technological fields, but realizing controllable surface friction-control based on the change of the modulus of a material is less investigated.
Yunlei Zhang, Weiyi Zhao, Shuanhong Ma, Hui Liu, Xingwei Wang, Xiaoduo Zhao, Bo Yu, Meirong Cai, Feng Zhou   +8 more
doaj   +1 more source

Bioinspired PcBN/hBN fibrous monolithic ceramic: High-temperature crack resistance responses and self-lubricating performances

Journal of Advanced Ceramics, 2022
The high strength and toughness of natural materials are mainly determined by a combination of mechanisms operating at different length scales, which can be used as a strategy to reduce the intrinsic brittleness of ceramics. Inspired by the architectures
Shu-na Chen, Hengzhong Fan, Yunfeng Su, Jicheng Li, Junjie Song, Litian Hu, Yongsheng Zhang   +6 more
doaj   +1 more source

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

Friction, 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, Dong Jiang, Yanlong Fu, Desheng Wang, Qinqin Wang, Lijun Weng, Ming Hu, Xiaoming Gao, Jiayi Sun   +8 more
doaj   +1 more source

Design of large-span stick-slip freely switchable hydrogels via dynamic multiscale contact synergy

Nature Communications, 2022
Switching between adhesive and non-adhesive states is important to design materials with on-demand adhesion properties but realizing reversible switching on large scale remains challenging.
Zhizhi Zhang, Chenxi Qin, Haiyan Feng, Yangyang Xiang, Bo Yu, Xiaowei Pei, Yanfei Ma, Feng Zhou   +7 more
doaj   +1 more source

EHD friction properties of ISO VG 320 gear oils with smooth and rough surfaces

Friction, 2019
The elastohydrodynamic (EHD) friction properties of seven ISO VG 320 gear oils including three polyalphaolefins (PAOs), three polyglycols (PG) and a mineral oil have been investigated in rolling/sliding conditions at six different temperatures and three ...
Balasubramaniam Vengudusamy, Claus Enekes, Reiner Spallek   +2 more
doaj   +1 more source

Lubrication in cold rolling: Elasto-plasto-hydrodynamic lubrication [PDF]

, 1993
A model has been developed with respect to hydrodynamic lubrication in cold rolling. The basic model describes the configuration of a rigid, perfectly plastic sheet rolled by a rigid work roll.
Lugt, P.M., Lugt, Pieter Martin, Otten, J.B., ten Napel, W.E., van Liempt, P., Wemekamp, A.W., Wemekamp, A.W.   +6 more
core   +3 more sources

A robust membrane with dual superlyophobicity for solving water-caused lubricant deterioration and water contamination

Friction, 2023
Lubricants are often contaminated by water in different ways. Water-polluted lubricants extremely accelerate wear corrosion, leading to the deterioration of lubricity performance.
Siyang Zhao, Chenggong Xu, Jiaxu Zhang, Yongmin Liang, Weimin Liu, Jinxia Huang, Zhiguang Guo   +6 more
doaj   +1 more source

Electron transfer dominated triboelectrification at the hydrophobic/slippery substrate—water interfaces

Friction, 2022
Triboelectric nanogenerator (TENG) based on triboelectrification has attracted wide attention due to its effective utilization of green energy sources such as marine energy. However, researches about liquid-liquid triboelectrification are still scanty as
Yi Chen, Xiaojuan Li, Chenggong Xu, Daoai Wang, Jinxia Huang, Zhiguang Guo, Weimin Liu   +6 more
doaj   +1 more source