Instability of diamond-like carbon (DLC) films during sliding in aqueous environment
作者： Se Jun Park , Kwang-Ryeol Lee , Seung-Ho Ahn , Jung-Gu Kim
DOI: 10.1016/J.DIAMOND.2007.12.035
关键词: Metallurgy 、 Diamond-like carbon 、 Thin film 、 Composite material 、 Aqueous solution 、 Plasma-enhanced chemical vapor deposition 、 Coating 、 Tribology 、 Titanium alloy 、 Abrasive 、 Materials science
摘要: The instability of diamond-like carbon (DLC) film deposited on Ti-6Al-4V alloy substrate using the r.f.-PACVD method was investigated under sliding conditions in an aqueous environment. Significant adhesive wear observed when tested this environment, while normal abrasive occurred ambient air relative humidity about 25%. A critical test performed to elucidate reason for which limits biomedical applications DLC coating. By employing a multi-step coating process, it shown that is closely related penetration water molecules interface via through-film defects or pinholes. These results suggest stability environment can be improved by controlling layer.
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