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ToolsCao, R., Liu, C., Cao, H., Li, Y., Khan, Z. and Meng, Y., 2023. Effect of running-in conditions on the super low EHD sliding friction of Si3N4 ball and WC plate in glycerol-water solution. Tribology Letters, 71, 124.
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Official URL: https://www.springer.com/journal/11249
DOI: 10.1007/s11249-023-01796-3
Abstract
In water-based ultralow or super low friction experiments, a running-in period before achieving the ultralow or super low friction is necessary and important. However, the effect of the change in contact geometry has not been fully realised. In this paper, a series of running-in tests on a Si3N4 ball and a WC plate have been performed in glycerol-water mixtures with different concentrations. The shape of the wear scars and the chemical compositions of the worn surfaces were characterised in detail. A numerical EHD and mixed lubrication model was established to comprehensively analyze the effects of geometric profiles, surface roughness, and working / lubrication conditions on ultralow or super low sliding friction. The experiment and simulation results of the study have provided an in-depth understanding of the mechanism of super low friction of liquid lubricated sliding point contacts.
| Item Type: | Article |
|---|---|
| ISSN: | 1023-8883 |
| Uncontrolled Keywords: | running-in; super low friction; contact geometry; silicon nitride; tungsten carbide; glycerol-water |
| Group: | Faculty of Science & Technology |
| ID Code: | 39051 |
| Deposited By: | Symplectic RT2 |
| Deposited On: | 16 Oct 2023 07:39 |
| Last Modified: | 08 Oct 2024 01:08 |
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