| Autor: |
Adrian Kędra, Mariusz Koziarz, Tomasz Kmita, Dariusz Bochenek, Sławomir Kaptacz, Adrian Barylski, Joanna Korzekwa |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Tribology Online, Vol 16, Iss 4, Pp 223-235 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
1881-2198 |
| DOI: |
10.2474/trol.16.223 |
| Popis: |
Dry friction tests were performed using a pin-on-plate tribological tester. In this study, Al2O3 and Al2O3 with MoS2 admixture plate with PEEK/BG pin. Plate surfaces were created using the constant current method and the non-periodic alternating current method. The dimension of Al2O3 fibers walls were calculate based on SEM micrographs. SGP measurements of the oxide layers were made by a Taylor Hobson Talysurf 2D pin profilometer. It was found that the gradient structure favors the reduction of the friction coefficient and weight loss of PEEK/BG in the tested friction pairs, and the method of gradually reducing non-periodic alternating current allowed to obtain a more homogeneous microstructure of aluminum oxide. The use of high current densities at the beginning of the process leads to the production of non-gradient coatings characterized by higher SGP amplitude parameters. This property translates directly into higher wear of the sliding PEEK/BG material and higher values of the friction coefficients of the tribological pairs thus obtained. The research also identified a strong correlation between the friction coefficient µ and surface topography parameters before the tribological cooperation of PEEK/BG pairs - Al2O3 oxide coating. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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