Tribological Performance and Lubrication Mechanism of Alumina Nanoparticle Water-Based Suspensions in Ball-on-Three-Plate Testing

2017 ◽  
Vol 65 (2) ◽  
Author(s):  
Anshun He ◽  
Shuiquan Huang ◽  
Jung-Ho Yun ◽  
Hui Wu ◽  
Zhengyi Jiang ◽  
...  
Keyword(s):  
Tribological Performance ◽  
Lubrication Mechanism ◽  
Alumina Nanoparticle ◽  
Water Based

Oil-soluble ionic liquid to lubricate silicon

2021 ◽  
pp. 135065012098488
Author(s):  
Waleed Al-Sallami ◽  
Pourya Parsaeian ◽  
Abdel Dorgham ◽  
Anne Neville
Keyword(s):  
Ionic Liquid ◽  
High Temperature ◽  
Friction And Wear ◽  
Tribological Performance ◽  
Considerable Reduction ◽  
Zinc Dialkyldithiophosphate ◽  
Lubrication Mechanism ◽  
Wear Coefficient ◽  
Wear Performance ◽  
Micro Scale

Trihexyltetradecylphosphonium bis(2-ethylhexyl)phosphate (phosphonium phosphate) ionic liquid is soluble in non-polar lubricants. It has been proposed as an effective anti-wear additive comparable to zinc dialkyldithiophosphate. Previously, phosphonium phosphate has shown a better anti-wear performance under some conditions such as high temperature. In this work, the tribological performance and the lubrication mechanism of phosphonium phosphate are compared with that of zinc dialkyldithiophosphate when lubricating silicon under various tribological conditions. This can lead to an understanding of the reasons behind the superior anti-wear performance of phosphonium phosphate under some conditions. A micro-scale study is conducted using a nanotribometer. The results show that both additives lead to a considerable reduction in both friction and wear coefficients. The reduction in the wear coefficient is mainly controlled by the formation of the tribofilm on the rubbing surfaces. Zinc dialkyldithiophosphate can create a thicker tribofilm, which results in a better anti-wear performance. However, the formation of a thicker film will lead to a faster depletion and thus phosphonium phosphate can provide better anti-wear performance when the depletion of zinc dialkyldithiophosphate starts.

Tribological performance of pullulan additives in water-based lubricant

2017 ◽  
Vol 11 (2) ◽  
pp. 83-87 ◽  
Author(s):  
Panpan Xu ◽  
Qi Chen ◽  
Lei Cao ◽  
Tingting Tu ◽  
Yong Wan ◽  
...  
Keyword(s):  
Tribological Performance ◽  
Water Based

scholarly journals Performance Evaluation and Lubrication Mechanism of Water-Based Nanolubricants Containing Nano-TiO2 in Hot Steel Rolling

Lubricants ◽  
2018 ◽  
Vol 6 (3) ◽  
pp. 57 ◽  
Author(s):  
Hui Wu ◽  
Jingwei Zhao ◽  
Liang Luo ◽  
Shuiquan Huang ◽  
Lianzhou Wang ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Lubrication Mechanism ◽  
Nano Tio2 ◽  
Steel Rolling ◽  
Water Based

scholarly journals Tribological Performance of Rosin Acid Additives in Water Based Lubricants

2007 ◽  
Vol 2 (1) ◽  
pp. 29-33 ◽  
Author(s):  
Martin Rojas-Campanur ◽  
Javier Lara-Romero ◽  
Fernando Chiñas-Castillo ◽  
Gabriel Alonso-Nuñez
Keyword(s):  
Rosin Acid ◽  
Tribological Performance ◽  
Water Based

Facile synthesis of core–shell Ag@C nanospheres with improved tribological properties for water-based additives

2018 ◽  
Vol 42 (11) ◽  
pp. 8773-8782 ◽  
Author(s):  
Haojie Song ◽  
Jian Huang ◽  
Xiaohua Jia ◽  
Weichen Sheng
Keyword(s):  
Tribological Properties ◽  
Glucose Solution ◽  
Tribological Performance ◽  
Core Shell ◽  
Facile Synthesis ◽  
The Core ◽  
Water Based

The core–shell Ag@C nanospheres were obtained from glucose solution by coupling reduction AgNO3 and catalytic carbonation. The tribological performance of Ag@C nanospheres as a water-based additive can be improved.

Lubrication Mechanism of Nanoparticles in Metal Hot Deformation

2014 ◽  
Vol 809-810 ◽  
pp. 31-38
Author(s):  
Tai Long Niu ◽  
Jian Lin Sun ◽  
Ya Dan Wang ◽  
Zuo Xin Zhu ◽  
Yan Li
Keyword(s):  
Surface Morphology ◽  
Hot Deformation ◽  
Metal Surfaces ◽  
Load Capacity ◽  
Extreme Pressure ◽  
Lubrication Mechanism ◽  
Water Based ◽  
Metal Deformation ◽  
Lubrication Conditions ◽  
Lubricating Mechanism

Effect of nanoparticles to improve the lubrication load capacity and resistance to extreme pressure of water-based rolling liquid was studied by four-ball tester. Compression experiments were conducted in different lubrication conditions with nanoparticles using Gleeble hot compression simulation machine. Then the residual nanoparticles characteristics and the surface morphology of the compressed sample were analyzed by SEM and EDS. The results show that water-based nanoTiO2lubricant can efficiently reduce the friction during metal deformation. nanoZnO is preferred to adhere to metal surfaces and employed to isolate the surfaces. A new lubricating mechanism of nanoparticles in metal hot deformation named convex peak extreme pressure buffering mechanism is thereby proposed, which is verified by the surface morphology of compressed sample.

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