SELECTIVE COATING FOR ALUMINUM SOLAR PANELS

摘要

TITLE SELECTIVE COATING FOR ALUMINUM SOLAR PANELS INVENTOR Jacques Blain A process for the production of selective solar energy materials by anodizing an aluminum substrate in phosphoric acid by applying a DC voltage and then colouring the substrate by immersing it in a bath containing a cobalt salt, an AC voltage is applied gradually thereby providing a film having uniform thickness and pore distribution despite the fact that the aluminum contains impurities.