| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Niste, Vlad
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (2/2 displayed)
Places of action
| Organizations | Location | People |
|---|
article
WS2 nanoparticles - potential replacement for ZDDP and friction modifier additives
Abstract
In high-pressure, high-temperature sliding contacts, WS2 nanoadditives react with the metal substrate to<br/>generate 100+ nm chemical tribofilms with a layered structure and excellent tribological properties. The<br/>friction, wear and micromechanical properties of WS2 tribofilms are compared with those of tribofilms<br/>formed by the zinc dialkyldithiophosphate (ZDDP) antiwear additive and ZDDP-organic friction modifier<br/>(OFM) mixture. Nanoindentation measurements showed that WS2 generates tribofilms with higher values<br/>of hardness and Young's modulus than ZDDP and ZDDP + OFM, which explains its excellent antiwear<br/>properties. The friction performance of WS2 surpassed that of ZDDP + OFM. The striking reduction of<br/>boundary friction is credited to the layered structure of the WS2 tribofilm, with exfoliated/squashed WS2<br/>nanoparticles that fill the gaps and cover the reacted tribofilm. In view of these results, WS2 proves to be<br/>a suitable candidate for the replacement of problematic lubricant additives currently in use.