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Type of publication: Straipsnis Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or / and Scopus (S1)
Field of Science: Mechanikos inžinerija / Mechanical Engineering (T009)
Author(s): Asadauskas, Svajus J;Kreivaitis, Raimondas;Bikulčius, Gedvidas;Grigucevičienė, Asta;Padgurskas, Juozas
Title: Tribological Effects of Cu, Fe and Zn Nano-Particles, Suspended in Mineral and Bio-based Oils
Is part of: Lubrication science , Т. 28, N 3 (2016)
Extent: p. 157-176
Date: 2016
Keywords: Antiwear;Lubricant;AW additives;Wear debris
Abstract: Many studies focus on nanoparticles as lubricity additives but overlook the fact that wear produces nanosized debris during the field use. In order to simulate the fine metal contaminants, which are the most widespread in various field applications, prefabricated Fe, Cu and Zn nanoparticles were used. Their 0.01–1% suspensions in vegetable and mineral oils with or without ZDDP and ashless AW package were tested on four-ball AW under 150-N load. Tribological effects of nanoparticles were not significant in formulations without AW additives. However, nanoFe addition produced notable lubricity improvement in already excellently performing rapeseed formulation with ZDDP, while such addition reduced performance of the ashless AW pack. Results show that metal nanoparticles can play both positive and negative roles on additive effectiveness and nanosized contaminants can significantly affect the lubricant performance
Affiliation(s): Valstybinis mokslinių tyrimų institutas Fizinių ir technologijos mokslų centras
Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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