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- W3140597032 abstract "Tribological properties of non-hydrogenated diamond-like carbon (DLC) films were investigated under humid (RH=80%) and dry (RH=5%) air. These films were deposited by pulsed laser deposition (PLD) at different substrate temperatures. Tribological properties of DLC fabricated by PLD is not sensitive to the relative humidity of testing environment. Because of the unique growth mechanism of DLC pre- pared by PLD, DLC is of soft-hard double layers, having a very low friction coefficient and wear rate under humid atmosphere. The minimum coefficient and wear rate of film under humid circumstance are 0.045 and 5.94×10?10 mm3N-1m-1, respectively, just a little bit more than those under dry condition. The root means square roughness of film is less than 1 nm. The sp3 content of film grown at room tem- perature (RT) is 72%, and the sp3 content decreases with temperature. Raman spectrum shows that the micro-structure is amorphous network. The largest hardness and elastic modulus of film are 51 GPa and 350 GPa, respectively and they reduce with increase of deposition temperature too. Water contact angles on surface are more than 90° which indicates that films fabricated by PLD are hydrophobic with low surface energy." @default.
- W3140597032 created "2021-04-13" @default.
- W3140597032 creator A5057415739 @default.
- W3140597032 date "2009-01-01" @default.
- W3140597032 modified "2023-09-27" @default.
- W3140597032 title "Extraordinary self-lubrication properties of non-hydrogenated diamond-like carbon films under humid atmosphere" @default.
- W3140597032 hasPublicationYear "2009" @default.
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