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An alternative approach to the analysis of Si-doped DLC coatings deposited with different bias voltage
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Rodriguez, Bruno J., Navabpour, Parnia, Proprentner, Daniela, Walker, Marc, Sun, Hailin and Schiller, Tara L. (2021) An alternative approach to the analysis of Si-doped DLC coatings deposited with different bias voltage. Emergent Materials, 4 . 1595-1604 . doi:10.1007/s42247-021-00263-w
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Official URL: https://doi.org/10.1007/s42247-021-00263-w
Abstract
A series of diamond-like carbon (DLC) coatings were deposited with increasing bias voltage using magnetron sputtering techniques. Structural changes were observed in the sp2-configuration across the films which were accompanied by a slight increase in the sp3 fraction. With an increasing bias voltage, the thermal stability of the coatings increased from 300 to 450 °C. Oxygen diffusion was observed through the coating as a result of the high-temperature annealing and found to slow down with increasing bias voltage. Coefficients of friction (COF) remained stable with temperature for the individual coatings, with the softer films reporting the lowest COF. Our approach employed Raman spectroscopy to map the wear tracks at different temperatures, providing a deeper understanding of the coating performance and suggested maximum flash temperatures endured during testing.
| Item Type: | Journal Article | ||||||||
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| Subjects: | Q Science > QD Chemistry T Technology > TP Chemical technology T Technology > TS Manufactures |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) |
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| Library of Congress Subject Headings (LCSH): | Diamond thin films, Diamonds, Artificial, Coatings, Raman spectroscopy | ||||||||
| Journal or Publication Title: | Emergent Materials | ||||||||
| Publisher: | Springer | ||||||||
| ISSN: | 2522-574X | ||||||||
| Official Date: | December 2021 | ||||||||
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| Volume: | 4 | ||||||||
| Page Range: | 1595-1604 | ||||||||
| DOI: | 10.1007/s42247-021-00263-w | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Open Access | ||||||||
| RIOXX Funder/Project Grant: |
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