METHOD FOR PRODUCING A SOLAR RADIATION ABSORBER ELEMENT FOR A CONCENTRATION THERMAL SOLAR POWER PLANT, A SOLAR RADIATION ABSORBER MEMBER

摘要

A method of producing a solar radiation absorber element for a concentrating solar thermal power plant comprising forming a selective coating (1) on an outer surface (2) of a steel substrate (3), forming the selective coating (1) comprises the following successive steps: - providing a substrate (3) made of steel having a chromium content of between 6% and 12.5% by weight, - carrying out a heat treatment, so as to form a layer of oxide (4) on the surface of the substrate (3).