NDLI: An analysis of the tribological mechanism of GLC film in artificial seawater

Content Provider	Royal Society of Chemistry (RSC)
Author	Ma, Fuqiang Li, Jinlong Wang, Yongxin Ye, Yuwei Chen, Hao Wang, Chunting
Copyright Year	2016
Abstract	The tribological performances of the graphite-like carbon (GLC) films sliding against WC balls in distilled water (DW), artificial seawater (SW) and four types of saline solutions related to seawater were investigated. The GLC film was deposited by magnetron sputtering. The microstructure, mechanical properties and tribological performances of the GLC film were characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), Raman spectroscopy, nano-indentation and reciprocating ball-on-disk tribo-meter. The results showed that the smooth, dense and hard GLC film with significant sp2-hybridized carbon exhibited good tribological performance with low friction and wear not only in distilled water, but also in seawater. The tribological performance of the GLC film in seawater was closely related to the nature and constitution of seawater, as well as the nature and performance of the counterparts. Bulky wear debris with hard particles would generate a three-body wear regime, which increases the friction coefficient and wear rate of the GLC film slightly in seawater environment. In contrast, the divalent metal salts of seawater can decrease friction and wear between the two contact surfaces. The synergistic effect led to a relatively higher friction coefficient and wear rate of the GLC film against the WC counterpart in seawater than that in distilled water.
Starting Page	32922
Ending Page	32931
Page Count	10
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	6
Issue Number	39
Journal	RSC Advances
DOI	10.1039/c6ra03532a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Atomic-force microscopy Friction Raman Raman spectroscopy Carbon Cavity magnetron Scanning electron microscope Sputtering GLC Tribology Artificial seawater
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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