Tribological improvement using Ti3C2Tx MXenes and/or CaCO3 nanoparticles as lubricant additives
The main goal of this work is the tribological characterization of low viscosity nanolubricants, PAO8 base oil containing Ti3C2Tx MXenes and/or functionalized CaCO3 (CaCO3-OA) nanoparticles as additives. Friction enhancements were reached with CaCO3-OA nanolubricants with maximum reductions of 44 %...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universidad de Santiago de Compostela (USC) |
| Repositorio: | Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela |
| Idioma: | inglés |
| OAI Identifier: | oai:minerva.usc.gal:10347/43368 |
| Acceso en línea: | https://hdl.handle.net/10347/43368 |
| Access Level: | acceso abierto |
| Palabra clave: | MXenes Nanoparticles Wear Surface analysis |
| Sumario: | The main goal of this work is the tribological characterization of low viscosity nanolubricants, PAO8 base oil containing Ti3C2Tx MXenes and/or functionalized CaCO3 (CaCO3-OA) nanoparticles as additives. Friction enhancements were reached with CaCO3-OA nanolubricants with maximum reductions of 44 % for the optimal concentration of 0.10 wt% CaCO3-OA. With respect to wear, significant improvements in antiwear performance were achieved with maximum reductions in wear width of 27 % (0.15 wt% CaCO3-OA), 14 % (0.10 wt% Ti3C2Tx) and 13 % for hybrid (0.10 wt% CaCO3-OA/Ti3C2Tx) nanolubricants. Confocal Raman microscopy was utilized to recognize the mechanisms that govern tribological improvement: tribofilm formation for Ti3C2Tx nanosheets and tribofilm formation and self-repairing for CaCO3-OA nanoparticles. |
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