Diamond-Like Nanocomposite (DLN) films constitute a class of amorphous thin films that are comprised of interpenetrating atomic scale diamond-like (a-C :H) and quartz-like (a-Si:O) networks. The coatings can be doped with a range of metallic and non-metallic materials in a variety of forms (random dispersion, third network, etc.), resulting in a range of controllable properties and combinations of properties. These films, characterized by inherently low stress, can be deposited without
pin-holes. Because of this, DLN films exhibit enhanced corrosion resistance to salt fog, acidic (HCI, HNO3 , and H2SO4) and alkaline
(KOH) environments at room temperature. Boiling solutions of KOH did not bring about significant damage to the DLN films. DLN coated 410 stainless steel and 6061 aluminum alloy exhibit an erosion resistance up four times better than uncoated metals when tested under falling sand conditions. DLN films exhibit high thermal stability at temperatures above 600°C under vacuum confirmed with the use of FTIR spectroscopy.
Keywords: Diamond-Like Nanocomposites, diamond-like, quartz-like, corrosion resistant thin film, amorphous, erosion resistant thin film