Defect effect on tribological behavior of diamond-like carbon films deposited with hydrogen diluted benzene gas in aqueous environment
- Defect effect on tribological behavior of diamond-like carbon films deposited with hydrogen diluted benzene gas in aqueous environment
- 이진우; 박세준; 문명운; 이광렬; 김석삼
- DLC; Hydrogen dilution; tribology; friction; defect-free; imperfection; humidity; Aqueous environment; Spallation wear
- Issue Date
- Applied surface science
- VOL 255, NO 15, 7005-7011
- This study examined the friction and wear behavior of diamond-like carbon (DLC) films deposited from a
radio frequency glow discharge using a hydrogen diluted benzene gas mixture. The DLC films were
deposited on Si (1 0 0) and polished stainless steel substrates by radio frequency plasma-assisted
chemical vapor deposition (r.f.-PACVD) at hydrogen to benzene ratios, or the hydrogen dilution ratio,
ranging from 0 to 2.0. The wear test was carried out in both ambient and aqueous environments using a
homemade ball-on-disk type wear rig. The stability of the DLC coating in an aqueous environment was
improved by diluting the benzene precursor gas with hydrogen, suggesting that hydrogen dilution
during the deposition of DLC films suppressed the initiation of defects in the film and improved the
adhesion of the coating to the interface.
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