RT Journal Article
T1 Tribological enhancement using Mn3O4-Graphene nanocomposites as additives for potential transmission fluids of electric vehicles
A1 Liñeira del Río, José Manuel
A1 Rial Silva, Ramón
A1 López Iglesias, Enriqueta
A1 Fernández Pérez, Josefa
K1 Transmission fluids
K1 Nanocomposites
K1 Electric vehicles
K1 Tribological mechanisms
K1 Friction
K1 Wear
AB This research reports the antifriction and antiwear properties of Mn3O4-Graphene nanocomposites (Mn3O4-G) as additives of a paraffinic base oil commonly used in the formulation of electric vehicles transmission oils, G-III base oil. Four G-III base oil nanodispersions have been designed, G-III base oil + 0.025 wt% Mn3O4-G, G-III base oil + 0.050 wt% Mn3O4-G, G-III base oil + 0.075 wt% Mn3O4-G and G-III base oil + 0.100 wt% Mn3O4-G, to know the optimal concentration of nanoadditive. Tribological experiments were carried out with these nanolubricants and with neat G-III base oil at pure sliding conditions under a working load of 9.43 N. All tested nanolubricants led to similar friction coefficients in comparison to that obtained using G-III base oil. Tribological specimens tested with formulated nanolubricants revealed less wear than that obtained with G-III base oil, obtaining the greatest wear reduction using the G-III base oil + 0.075 wt% Mn3O4-G nanolubricant, with reductions of 25, 50 and 64% in wear scar diameter, maximum depth and transversal area, respectively. Moreover, by means of confocal Raman microscopy and roughness evaluation of worn tribological specimens, it was concluded that synergetic effect, tribofilm formation and rolling mechanisms happen
PB Elsevier
YR 2022
FD 2022
LK http://hdl.handle.net/10347/29419
UL http://hdl.handle.net/10347/29419
LA eng
NO Journal of Molecular Liquids 366 (2022) 120271. https://doi.org/10.1016/j.molliq.2022.120271
NO This research is supported by Xunta de Galicia (ED431C 2020/10), by the State Research Agency (AEI) of Spain and the European Regional Development Fund (ERDF, FEDER in Spanish) through the PID2020-112846RB-C22 project. JMLDR and RR are granted by the Program for the requalification, international mobility, and attraction of talent in the Spanish university system, modality Margarita Salas
DS Minerva
RD 23 abr 2026