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| Content Provider | Springer Nature Link |
|---|---|
| Author | Evaristo, Manuel Polcar, Tomas Cavaleiro, Alba |
| Copyright Year | 2007 |
| Abstract | W-S-C films were deposited by non-reactive sputtering from a carbon target incrusted with WS$_{2}$ pellets in the eroded zone. This process allows depositing coatings with a wide range of compositions, with a precise control of their carbon content. Before the deposition, a Ti interlayer was interposed between the film and the substrate to improve the final adhesion. The carbon content in W-S-C system was varied from 29 at.% to 70 at.%, which led to an hardness enhancement from 4 GPa up to 10 GPa where the maximum hardness was reached in films with a carbon content between 40 at.% and 50 at.%. The tribological behaviour of the coatings was evaluated by pin-on-disk testing, in environments with different humidity levels. Generally, the tribological performance of W-S-C coatings in environments with moderate to high humidity is better for coatings with high carbon content. Friction coefficients, as 0.05 or lower could be reached at low humidity ranges (<7%) to all compositions. However, for higher humidity values, friction coefficient increased up to 0.30 in the W-S-C film with low carbon content whereas it was kept approximately constant for the others compositions. |
| Starting Page | 137 |
| Ending Page | 143 |
| Page Count | 7 |
| File Format | |
| ISSN | 15691713 |
| Journal | International Journal of Mechanics and Materials in Design |
| Volume Number | 4 |
| Issue Number | 2 |
| e-ISSN | 15738841 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2007-07-28 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | C-TMD Low friction Self-lubricant Wear behaviour WS$_{2}$ Materials Science Continuum Mechanics and Mechanics of Materials Engineering Design Mechanical Engineering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Mechanics of Materials Materials Science Mechanical Engineering |
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