Keywords
Citation
(1999), "Diamond-like carbon coating", Anti-Corrosion Methods and Materials, Vol. 46 No. 3. https://doi.org/10.1108/acmm.1999.12846cab.009
Publisher
:Emerald Group Publishing Limited
Copyright © 1999, MCB UP Limited
Diamond-like carbon coating
Diamond-like carbon coating
Keywords Argonne National Laboratory, Coatings
A diamond-like carbon coating that is near-frictionless, durable, and can be applied on almost any substrate at low temperatures (room temperature to 200°C, 400°F) has reportedly been developed at Argonne National Laboratory, Argonne, Illinois. The coating is said to be exceptionally wear-resistant on steel, ceramics, and plastics, and can be produced on a wide variety of substrates by ion-beam deposition, sputtering, or chemical vapour deposition (CVD). The rate of carbon film growth is said to be two to three times faster than that of conventional CVD diamond films, and is comparable to those of titanium nitride and titanium carbide films produced by conventional vapour deposition processes. Friction coefficients in a laboratory environment (dry nitrogen atmosphere and 0 per cent humidity) are 0.001. In air, the coefficient rises to 0.07.
Applications include oil-less bearings, gears, and seals; turbocharger rotors; turbomolecular pumps; and spacecraft mechanisms. Argonne is currently seeking partners for commercial application development.
Further information from Don Knight, Industrial Technology Development Center, 9700 South Cass Avenue, Argonne, Illinois 60439, USA. Tel: +1 630/252 6128.