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dc.creatorSánchez-Pérez, Miriames
dc.creatorRojas Ruiz, Teresa Cristinaes
dc.creatorFernández de los Reyes, Danieles
dc.creatorFerrer Fernández, Francisco Javieres
dc.creatorFarchado Dinia, Meryemes
dc.creatorMorales Sabio, Ángeles
dc.creatorEscobar-Galindo, Ramónes
dc.creatorSánchez López, Juan Carloses
dc.date.accessioned2024-01-18T13:01:42Z
dc.date.available2024-01-18T13:01:42Z
dc.date.issued2023-12
dc.identifier.citationSánchez-Pérez, M., Rojas Ruiz, T.C., Fernández de los Reyes, D., Ferrer Fernández, F.J., Farchado Dinia, M., Morales Sabio, Á.,...,Sánchez López, J.C. (2023). Synthesis and Characterization of Multilayered CrAlN/Al₂O₃ Tandem Coating Using HiPIMS for Solar Selective Applications at High Temperature. ACS Applied Energy Materials. https://doi.org/10.1021/acsaem.3c02310.
dc.identifier.issn2574-0962es
dc.identifier.urihttps://hdl.handle.net/11441/153599
dc.description.abstractThe effect of applying a negative bias during deposition of a previously designed multilayer solar selective absorber coating was studied on two types of substrates (316L stainless steel and Inconel 625). The solar selective coating is composed of different chromium aluminum nitride layers deposited using a combination of radiofrequency (RF), direct current (DC), and high-power impulse magnetron sputtering (HiPIMS) technologies. The chemical composition is varied to generate an infrared reflective/absorber layer (with low Al addition and N vacancies) and two CrAlN intermediate layers with medium and high aluminum content (Al/Cr = 0.6 and 1.2). A top aluminum oxide layer (Al₂O₃) is deposited as an antireflective layer. In this work, a simultaneous DC-pulsed bias (−100 V, 250 kHz) was applied to the substrates in order to increase the film density. The optical performance, thermal stability, and oxidation resistance was evaluated and compared with the performance obtained with similar unbiased coating and a commercial Pyromark paint reference at 600, 700, and 800 °C. The coating remained stable after 200 h of annealing at 600 °C, with solar absorptance (α) values of 93% and 92% for samples deposited on stainless steel and Inconel, respectively, and a thermal emittance ε25°C of 18%. The introduction of additional ion bombardment during film growth through bias assistance resulted in increased durability, thermal stability, and working temperature limits compared with unbiased coatings. The solar-to-mechanical energy conversion efficiency at 800 °C was found to be up to 2 times higher than Pyromark at C = 100 and comparable at C = 1000.es
dc.formatapplication/pdfes
dc.format.extent12 p.es
dc.language.isoenges
dc.publisherAmerican Chemical Societyes
dc.relation.ispartofACS Applied Energy Materials.
dc.rightsAtribución-CompartirIgual 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-sa/4.0/*
dc.subjectSelective absorptiones
dc.subjectOptical propertieses
dc.subjectEmissivityes
dc.subjectThermal stabilityes
dc.subjectBiases
dc.subjectSputteringes
dc.titleSynthesis and Characterization of Multilayered CrAlN/Al₂O₃ Tandem Coating Using HiPIMS for Solar Selective Applications at High Temperaturees
dc.typeinfo:eu-repo/semantics/articlees
dc.type.versioninfo:eu-repo/semantics/publishedVersiones
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Física Atómica, Molecular y Nucleares
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Física Aplicada Ies
dc.relation.projectIDP18-RT-2641es
dc.relation.projectIDPID2019-104256RB-I00es
dc.relation.projectIDPID2021-123879OB-C21es
dc.relation.projectIDVI PPIT-USes
dc.relation.publisherversionhttps://pubs.acs.org/doi/10.1021/acsaem.3c02310es
dc.identifier.doi10.1021/acsaem.3c02310es
dc.contributor.groupUniversidad de Sevilla. RNM138: Física Nuclear Aplicadaes
dc.contributor.groupUniversidad de Sevilla. TEP946: Materiales y Nanotecnología para la Innovaciónes
dc.journaltitleACS Applied Energy Materialses
dc.contributor.funderJunta de Andalucía (PAIDI2020) and European Regional Development Funds (EU-FEDER) P18-RT-2641es
dc.contributor.funderMCIN/AEI/ 10.13039/501100011033 PID2019-104256RB-I00es
dc.contributor.funderMCIN/AEI/ 10.13039/501100011033 PID2021-123879OB-C21es
dc.contributor.funderUniversity of Seville VI PPIT-USes

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