Abstract
A series of tribological experiments have been conducted to characterise and study the formation of tribofilms derived from TiF3 and FeF3 catalysts impregnated in soot-contaminated lubricants. Results showed that inorganic fluorides reduced friction and wear in the specimen contaminated lubricants. With the best results observed when TiF3 was used. There were also indications that the frictional process, when coupled with the fluorides induced a structural change in the soot particles within the contact zones, contributing to the improved tribological performance. The key contributors to the formation of robust tribofilms were adsorption and tribo-chemical reactions. The better tribological response leads to a method for the design of engine lubricants to mitigate against the effects of soot contamination.
Original language | English |
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Pages (from-to) | 163 - 172 |
Number of pages | 10 |
Journal | Tribology International |
Volume | 107 |
Early online date | 22 Nov 2016 |
DOIs | |
Publication status | Published - 1 Mar 2017 |
Keywords
- Soot
- Nanoparticles
- Tribofilm
- Tribochemistry
- Lubricating oil
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Surfaces and Interfaces
- Surfaces, Coatings and Films