METHOD FOR PRODUCING AN ELEMENT FOR ABSORBING SOLAR RADIATION FOR A CONCENTRATING SOLAR THERMAL POWER PLANT, ELEMENT FOR ABSORBING SOLAR RADIATION

摘要

A method for producing a solar radiation absorber element, for a concentrating thermal solar power plant, including the formation of a selective coating on an outer surface of a steel substrate, formation of the selective coating including the following successive steps: providing a steel substrate having a chromium content between 6% and 12.5% by weight, and an aluminium content less than or equal to 0.05% by weight, performing heat treatment so as to form an oxide layer on the surface of the substrate.