RT Journal Article
T1 Tribological improvement using Ti3C2Tx MXenes and/or CaCO3 nanoparticles as lubricant additives
A1 Liñeira del Río, José Manuel
A1 Moreda Piñeiro, Antonio
A1 López Iglesias, Enriqueta
A1 Fernández Pérez, Josefa
K1 MXenes
K1 Nanoparticles
K1 Wear
K1 Surface analysis
AB 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.
PB Elsevier
SN 0043-1648
YR 2025
FD 2025-03-19
LK https://hdl.handle.net/10347/43368
UL https://hdl.handle.net/10347/43368
LA eng
NO Liñeira del Río, J. M., Gómez Martínez, M., Moreda-Piñeiro, A., López, E. R., & Fernández, J. (2025). Tribological improvement using Ti3C2Tx MXenes and/or CaCO3 nanoparticles as lubricant additives. Wear, 572-573, 206041. 10.1016/j.wear.2025.206041
NO This research is supported by MCIN/AEI/10.13039/501100011033 through PID2020-112846RB-C22 project and by Xunta de Galicia (ED431C 2024/06). JMLdR is grateful for financial support through the Margarita Salas program, funded by MCIN/AEI/10.13039/501100011033 and “NextGenerationEU/PRTR”. Besides, authors are also thankful to Repsol Lubricants for providing the PAO8 base oil and to RIAIDT-USC for its analytical facilities.
DS Minerva
RD 29 abr 2026