Coloring zirconium oxide for novel energy saving industrial applications
Year: 2022
Authors: Silvestroni Laura; Capiani Claudio; Sciti Diletta; Sani Elisa
Autors Affiliation: CNR ISTEC, Inst Sci & Technol Ceram, Via Granarolo 64, I-48018 Faenza, Italy; CNR INO, Natl Inst Opt, Largo E Fermi 6, I-50125 Florence, Italy.
Abstract: White conventional zirconium oxide was mixed to black or rust coloring second phase additives to increase the absorptance and thermal emittance with the aim of exploring novel oxide-based ceramics for energy exploitation and saving, like solar absorbers or even industrial refractory kiln walls. The variation of the optical properties of the colored samples was evaluated as a function of the amount, dopant type and co-doping and it was found that notable changes to the optical spectrum occur already upon introduction of 0.05 wt% pigment. The absorptance of ZrO2 passed from 0.1, in the white ceramic, to 0.75, for the rust-colored ones, and up to 0.82, for black colored materials containing Co-oxide as additive. The thermal emittance and solar absorptance of the black/rust-shaded specimens were calculated for temperatures from 400 to 1500 K and compared to commercial white, black and brown reference to identify the most appropriate composition for the two proposed applications and operating temperatures. (C) 2022 Elsevier Ltd. All rights reserved.
Journal/Review: RENEWABLE ENERGY
Volume: 190 Pages from: 223 to: 231
More Information: M. Dondi is acknowledged for providing the pigments and G. Guarini for CIE-L*a*b measurements, M. D´Uva and M. Pucci are acknowledged for technical assistance. Part of activities have been carried out in the framework of the i-SOLAR project, funded by the Italian Bank Foundation “Fondazione Cassa di Risparmio di Firenze” (Pratica 2020.1728).KeyWords: ZrO2, Pigments, Solar absorptance, Optical propertiesDOI: 10.1016/j.renene.2022.03.083ImpactFactor: 8.700Citations: 7data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-10-06References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here