Document Type
Article
Publication Date
2-21-2024
Abstract
There exists an ever-growing need for sustainable engineering solutions to improve emission control and the energy efficiency of tribosystems. This study examines the tribological properties of two environmentally friendly vegetable fluids, soybean and sunflower oil, with the addition of three non-toxic nanostructures (h-BN, silver and MgO) at different concentrations. It was found that nanostructures added to vegetable oils at specific concentrations can exhibit good friction reduction and wear preventive properties. The addition of h-BN nanosheets in sunflower oil decreased the coefficient of friction and the wear damage, as measured by the wear scar diameter. Silver and magnesium oxide nanoparticles further reduced the friction and wear, respectively. In addition to the tribological testing of the samples, investigations were performed using an optical microscope, SEM and EDX to elucidate the mechanisms that may have led to the observed friction reduction and wear-preventive properties of different nanostructure additives. The thermophysical properties of the samples were also measured. It was found that the thermal conductivity of both base oils could be enhanced by 24% when using h-BN at 0.25 wt% concentration.
Recommended Citation
Granja, Victoria, Kollol Jogesh, Jaime Taha-Tijerina, and C. Fred Higgs III. "Tribological Properties of h-BN, Ag and MgO Nanostructures as Lubricant Additives in Vegetable Oils." Lubricants 12, no. 3 (2024): 66. https://doi.org/10.3390/lubricants12030066
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Publication Title
Lubricants
DOI
10.3390/lubricants12030066
Comments
© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).