Results 11 to 20 of about 18,687 (301)

Structured free-water clusters near lubricating surfaces are essential in water-based lubrication [PDF]

open access: yesJournal of The Royal Society Interface, 2016
Water-based lubrication provides cheap and environmentally friendly lubrication and, although hydrophilic surfaces are preferred in water-based lubrication, often lubricating surfaces do not retain water molecules during shear. We show here that hydrophilic (42° water contact angle) quartz surfaces facilitate water-based lubrication to the same extent ...
Jiapeng Hou   +4 more
openaire   +4 more sources

A review on water lubrication of polymers [PDF]

open access: yesInternational Journal Sustainable Construction & Design, 2012
Water lubrication for polymers which is an economical solution has not been completelyreviewed from the qualitative perspective. A comparative study on water lubrication of polymers helpsto understand the fundamental aspects of tribology relevant to the different applications.
Sukumaran, Jacob   +6 more
openaire   +2 more sources

Progress in Tribological Properties of Nano-Composite Hard Coatings under Water Lubrication

open access: yesLubricants, 2017
The tribological properties, under water-lubricated conditions, of three major nano-composite coatings, i.e., diamond-like carbon (DLC or a-C), amorphous carbon nitride (a-CNx) and transition metallic nitride-based (TiN-based, CrN-based), coatings are ...
Qianzhi Wang, Fei Zhou
doaj   +2 more sources

Biomimetic water-based lubrication: an exploration into vesicle lubrication

open access: yes, 2023
The replacement of oil-based lubricants with water-based lubricants has been a desirable yet unrealised ambition in Tribology. The use of bio-lubricants has been previously explored; however limited advances have been achieved. Most work has focused on traditional mechanisms, with biomolecules being used to form friction reducing surface films. However,
Murali, Manoj
openaire   +3 more sources

Impact of oil-water emulsions on lubrication performance of ship stern bearings

open access: yesScientific Reports
During maritime operations, extreme events such as explosions, grounding, and seal failures can cause water ingress into lubricant compartments, forming oil-water emulsions that significantly affect the lubrication performance of ship stern bearings ...
Zhenjiang Zhou   +5 more
doaj   +2 more sources

Study on the Effect of Water Pollution in Lubricant on Gear Thermal Elastohydrodynamic Lubrication Characteristic

open access: yesJixie chuandong, 2021
Taking the involute spur gear as the research object and considering the thermal effect and time-varying effect,the oil-water two-phase flow model and the thermal elastohydrodynamic lubrication model of the gear system are established,the influence of ...
Yan Chen, Xian Zhang, Guosheng Li
doaj   +2 more sources

System modelling and characteristic research of novel high water-based synchronous lubrication piston pump [PDF]

open access: yesMeitan kexue jishu
Expanding the speed range of high water-based piston pump is beneficial to the wide intelligent control of liquid supply system in fully mechanized coal mine.
Hao JIANG, Lang YU, Yongkang LI
doaj   +2 more sources

Effect of Groove Structure on Lubrication Performance of Water-Lubricated Stern Tube Bearings

open access: yesLubricants, 2023
This study investigated the lubrication characteristics (i.e., the groove ratio and width) of water-lubricated stern tube bearings, based on the flexibility matrix method and lubrication theory.
Shengdong Zhang
doaj   +2 more sources

Friction Performance of Self-Emulsifying Esters and Organic Phosphate Esters Mixed Aqueous Solution on the Surface of TB6 Titanium Alloy

open access: yesLubricants, 2023
Water-based lubrication, due to the poor film-forming ability of water, faces challenges in achieving effective lubrication for titanium alloys. This study systematically investigates the frictional performance of phosphorus-based extreme pressure (EP ...
Lishun Luo   +4 more
doaj   +1 more source

Wear analysis and life prediction of sucker rod and tubing under ternary emulsion lubrication in Daqing oilfield: a case study in block H

open access: yesJournal of Petroleum Exploration and Production Technology, 2023
Daqing Oilfield as the world’s largest application area of alkali–surfactant–polymer (ASP) flooding, in recent years, with the increase in aging wells, the eccentric wear and deformation of sucker rod and pipe during oil production has become more and ...
Chengting Liu   +4 more
doaj   +1 more source

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