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Nanomaterials 2019, 9(4), 528; https://doi.org/10.3390/nano9040528

The Effects of Precursor C2H2 Fraction on Microstructure and Properties of Amorphous Carbon Composite Films Containing Si and Ag Prepared by Magnetron Sputtering Deposition

1
School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
2
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
3
Material Corrosion and Protection Key Laboratory of Sichuan Province, School of Materials science and engineering, Sichuan University of Science & Engineering, Zigong 643000, China
*
Author to whom correspondence should be addressed.
Received: 25 February 2019 / Revised: 25 March 2019 / Accepted: 26 March 2019 / Published: 3 April 2019
(This article belongs to the Special Issue Carbon Based Hybrid Nanomaterials)
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Abstract

Hydrogenated graphite-like carbon composite films containing silicon (Si) and silver (Ag) (g-C:H:Si:Ag) were prepared by middle frequency magnetron sputtering deposition in argon (Ar) and acetylene (C2H2) mixture gases. The effects of precursor C2H2 fraction on the microstructure and properties were studied. The results of Raman and X-ray photoelectron spectroscope (XPS) revealed that the films were dominated by sp2 carbon sites. It was observed from transmission electron microscope (TEM) that the films contained nanoparticles mainly consisting of Ag, and their size increased with the decrease in the C2H2 fraction. Si was also found to aggregate in the areas where Ag nanoparticles formed in films with high Si content. The comparative studies on the frictional behaviors of films sliding against aluminum oxide were carried out in ambient air and saline solution. The g-C:H:Si:Ag films still exhibited outstanding frictional properties even when the test environment shifts from ambient air to saline solution. View Full-Text
Keywords: amorphous carbon; low friction; mechanical properties; nanoparticles; tribological behaviors amorphous carbon; low friction; mechanical properties; nanoparticles; tribological behaviors
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Liu, X.; Hao, J.; Lv, Y.; Cui, X. The Effects of Precursor C2H2 Fraction on Microstructure and Properties of Amorphous Carbon Composite Films Containing Si and Ag Prepared by Magnetron Sputtering Deposition. Nanomaterials 2019, 9, 528.

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