The IWS developed amorphous carbon coatings (Diamor®) are exceptionally useful as protective coatings. Films of a wide thickness range are deposited achieving excellent adhesion and performance. The synthesis process operates at low temperatures in a vacuum environment with a special pulsed arc process. IWS engineers collaborate with industrial partners to commercialize Diamor® coatings and the associated coating machine technology. As part of this portfolio we have developed the unique thin film testing technique LAwave, which is applied for coating optimization and quality control.
© Fraunhofer IWS Dresden
Plasma filtered ta-C coatings
A plasma filter was developed especially for the Laser-ArcTM technology and the coating module LAM 500. The filter replaces the adapter flange, which usually connects the source chamber to the coating machine. In filtered operation the technology deposits smooth ta-C coatings of low defect densities, which significantly outperform unfiltered coatings. The deposition rate is reduced by about 40% compared to unfiltered deposition.