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Microstructure, Mechanical Properties and Tribological Behavior of Magnetron-Sputtered $MoS_{2}$ Solid Lubricant Coatings Deposited under Industrial Conditions
| Content Provider | MDPI |
|---|---|
| Author | Sebastian, Krauß Seynstahl, Armin Bitzek, Erik Meyer, Bernd Merle, Benoit Tremmel, Stephan |
| Copyright Year | 2021 |
| Description | Depositing MoS2 coatings for industrial applications involves rotating the samples during the PVD magnetron sputtering process. Here, we show that a 3-fold substrate rotation, along a large target–substrate distance given by the deposition unit, introduces porosity inside the coatings. The mechanical properties and wear behavior strongly correlate with the degree of porosity, which, in turn, depends on the temperature and the rotational speed of the substrate. Ball-on-disk tests and nanoindentation wear experiments show a consistent change in tribological behavior; first, a compaction of the porous structure dominates, followed by wear of the compacted material. Compaction was the main contributor to the volume loss during the running-in process. Compared to a dense coating produced without substrate rotation, the initially porous coatings showed lower hardness and a distinct running-in behavior. Tribological lifetime experiments showed good lubrication performance after compaction. |
| Starting Page | 455 |
| e-ISSN | 20796412 |
| DOI | 10.3390/coatings11040455 |
| Journal | Coatings |
| Issue Number | 4 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-04-15 |
| Access Restriction | Open |
| Subject Keyword | Coatings Coatings and Films Pvd Mos2 Friction Wear Mechanisms Nanoindentation Microstructure |
| Content Type | Text |
| Resource Type | Article |
