Dark alumina for novel solar receivers
Authors: Sani E., Failla S., Sciti D.
Autors Affiliation: CNR-INO National Institute of Optics, Largo E. Fermi, 6, Firenze I-50125 Italy; CNR-ISTEC, Institute of Science and Technology for Ceramics, Via Granarolo 64, Faenza I-48018 Italy
Abstract: Concentrating solar power is one of the most promising solar energy exploitation technologies. Its efficiency improvement needs a significant increase of operating temperatures, from the current 500°C to 900°C. Alumina (Al2O3) ceramics are refractory materials characterized by a huge industrial interest, mature production techniques and low cost. In the present work, we successfully synthesized dark ceramic Al2O3 bulks, to evaluate their potential as high-temperature solar absorbers for CSP. We investigated process-dependent ceramics composition, microstructure and optical properties, obtaining pellets with a solar absorbance even higher than that of SiC.
Journal/Review: SCRIPTA MATERIALIA
Volume: 176 Pages from: 58 to: 62
Concentrating solar power
Optical propertiesDOI: 10.1016/j.scriptamat.2019.09.038Citations: 4data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2021-10-24References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here