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Structure and Property of Diamond-like Carbon Coating with Si and O Co-Doping Deposited by Reactive Magnetron Sputtering.
- Source :
- Journal of Composites Science; May2023, Vol. 7 Issue 5, p180, 12p
- Publication Year :
- 2023
-
Abstract
- In this paper, diamond-like carbon (DLC) coatings with Si and O co-doping (Si/O-DLC) were deposited by reactive magnetron sputtering using a gas mixture of C<subscript>2</subscript>H<subscript>2</subscript>, O<subscript>2</subscript> and Ar to sputter a silicon/graphite splicing target. The O content in the Si/O-DLC coatings was controlled by tuning the O<subscript>2</subscript> flux in the gas mixture. The composition, chemical bond structure, mechanical properties and tribological behavior of the coatings were investigated by X-ray photoelectron spectroscopy, Fourier infrared spectrometer, Raman spectroscopy, nanoindentation, a scratch tester and a ball-on-disk tribometer. The electrical resistivity of the Si/O-DLC coatings was also studied using the four-point probe method. The results show that the doping O tends to bond with Si to form a silicon–oxygen compound, causing a decrease in the sp<superscript>3</superscript> content as well as the hardness of the coatings. The tribological performance of the coatings can be improved due to the formation of the silicon–oxygen compound, which can effectively reduce the friction coefficient. In addition, the insulating silicon–oxygen compound is doped into the C-C network structure, significantly improving the surface resistivity of the DLC coating with a low sp<superscript>3</superscript> content. The Si/O-DLC coatings with good mechanical properties, tribological performance and electrical insulation properties might be used as protection and insulation layers for microelectronics. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 2504477X
- Volume :
- 7
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Journal of Composites Science
- Publication Type :
- Academic Journal
- Accession number :
- 163968970
- Full Text :
- https://doi.org/10.3390/jcs7050180