Colored zirconia with high absorbance and solar selectivity

Year: 2020

Authors: Sani E., Sciti D., Capiani C., Silvestroni L.

Autors Affiliation: CNR-INO, National Institute of Optics, Largo E. Fermi, 6, I-50125 Firenze, Italy; CNR-ISTEC, Institute of Science and Technology for Ceramics, Via Granarolo 64, I-48018 Faenza, Italy

Abstract: White Zirconium oxide is featured by low absorptance, but addition of specific secondary coloring agents enables to increase its solar selectivity comparable to that of conventional materials used in solar power plants. Colored zirconia, generally used for decorative purposes, has thus the possibility to widen its application fields and to be a cheaper competitor of other non-oxide materials that require expensive processing routes. Optical characterization put forth this novel aspect for constituting bulk solar absorbers operating at high temperatures.


Volume: 186      Pages from: 147  to: 151

KeyWords: Optical properties, Scanning electron microscopy, Solar absorbance, ZrO2
DOI: 10.1016/j.scriptamat.2020.04.020

Citations: 15
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