LAPSE:2023.35891
Published Article
LAPSE:2023.35891
The Effect of an Electric Field on the Sliding Friction of the Silicone Rubber against Selected Metals in Motor Base Oils
May 24, 2023
The effects of applying external electric fields on the coefficient of friction of a selected elastomer during mechanical interaction with steel and copper surface oil (counter samples) immersed in a pin-on-disc setup were studied and investigated. The synthetic base oils used were PAG 68 and PAO 6. The elastomer selected for the study is commonly used in the manufacture of rotary lip seals. During the investigations, the viscosity of the oils tested was also experimentally determined in the temperature range of between 286 K and 393 K. It was found that the external electric field had a significant effect on the friction coefficient, depending on the type of base oil, the angular velocity of the load force, and the counterpart. It was observed that for both oils tested, the coefficient of friction values decreased by about 30% when an external DC electric field was applied. In addition, a simple numerical model of the friction interface was proposed and studied. The experimental results were complemented by molecular simulations to determine the interaction between the lubricant molecule and the metal surface. Furthermore, molecular models of the metal surface and lubricant molecules were simulated using ReaxFF and COMPASS force fields to determine adsorption energies.
Keywords
DC electric field, friction coefficient, molecular models, pin-on-disc
Suggested Citation
Głogowski M, Smykowski D, Pietrowicz S. The Effect of an Electric Field on the Sliding Friction of the Silicone Rubber against Selected Metals in Motor Base Oils. (2023). LAPSE:2023.35891
Author Affiliations
Głogowski M: Department of Cryogenics and Aeronautical Engineering, Faculty of Mechanical and Power Engineering, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27 St., 50-370 Wrocław, Poland [ORCID]
Smykowski D: Department of Mechanics and Power Systems, Faculty of Mechanical and Power Engineering, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27 St., 50-370 Wrocław, Poland [ORCID]
Pietrowicz S: Department of Thermodynamics and Renewable Energy Sources, Faculty of Mechanical and Power Engineering, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27 St., 50-370 Wrocław, Poland [ORCID]
Journal Name
Energies
Volume
16
Issue
9
First Page
3954
Year
2023
Publication Date
2023-05-08
Published Version
ISSN
1996-1073
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Original Submission
Other Meta
PII: en16093954, Publication Type: Journal Article
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LAPSE:2023.35891
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doi:10.3390/en16093954
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May 24, 2023
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CC BY 4.0
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May 24, 2023
 
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Original Submitter
Calvin Tsay
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