Dark alumina for novel solar receivers
Year: 2020
Authors: Sani E., Failla S., Sciti D.
Autors Affiliation: CNR, INO Natl Inst Opt, Largo E Fermi 6, I-50125 Florence, Italy; CNR, ISTEC Inst Sci & Technol Ceram, Via Granarolo 64, I-48018 Faenza, 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
KeyWords: Alumina
Solar absorber
Concentrating solar power
Solar absorbance
Optical propertiesDOI: 10.1016/j.scriptamat.2019.09.038ImpactFactor: 5.611Citations: 12data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-10-13References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here