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Title: Diamond-like carbon / epoxy low-friction coatings to replace electroplated chromium
Authors: Podgoric, S
Jones, BJ
Bulpett, R
Troisi, G
Franks, J
Keywords: Chromium
Surface structure
Diamond-like carbon
Epoxy resin
Amorphous carbon
Publication Date: 2009
Publisher: Elsevier
Citation: Wear 267 (2009): 996, May 2009
Abstract: A series of layered structures based on epoxy-resins coated with diamond-like carbon (DLC) are examined as potential replacements for electroplated chromium in aerospace applications. Diamond-like carbon coatings can offer superior mechanical properties and tribological performance; however, in some applications high internal stresses and poor adhesion limit their practical use. A DLC / epoxy system is developed and studied utilising pin-on-disk testing, analysis with scanning electron microscopy and atomic force microscopy, resulting in an optimum system with characteristics superior to those of chromium plated steel. This new coating system has a great potential in restoring worn or damaged aircraft components, without the health and environmental issues associated with chromium plating. The components can be rebuilt and improved over the original condition thus allowing an extension of service life and eliminating the need for costly replacements.
Sponsorship: The authors would like to thank Diameter Ltd and Lufthansa Technik Intercoat for providing coatings, advice and testing. This project is funded via the Engineering and Physical Sciences Research Council (EPSRC) supported Industrial Doctorate Centre at Brunel University. BJJ acknowledges support from the Anson Fund for an equipment grant.
Appears in Collections:Materials Engineering
The Experimental Techniques Centre

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