LARGE AREA COATING OF ALUMINIUM COILS FOR AUTOMOTIVE APPLICATIONS

This work reports about recent multilayer deposition results obtained with an air-to-air coil coater. By employing the Physical Vapour Deposition (PVD) technique, light absorbing layer sequences were deposited on the backside of highly reflecting aluminium coils. The total reflection of this multilayer system is less than 5% over the visible spectral range and remains practically unchanged after an exposure of the coating at 400 degrees C over at least 200h. The adhesion properties of the coating are also excellent. An aluminium cap with functionality on both sides could be used in the modern automotive clearglass headlight systems. For the covering abstract see ITRD E123380.