Method for the production of thin layers of metal-ceramic composite materials

摘要

Selective solar absorbers are prepared by coating a reflector with a thin cermet layer prepared by depositing and subsequently sintering at least one cermet layer precursor which is an aqueous or alcoholic dispersion of ceramic nanoparticles, the dispersion also containing dissolved metal ions corresponding to the desired metal in the cermet. Sintering in H2 or an inert atmosphere reduces the metal ions to elemental metal particles.