Design of high-temperature solar-selective coatings based on aluminium titanium oxynitrides AlyTi1-y(OxN1-x). Part 2: Experimental validation and durability tests at high temperature.
[EN] The durability of two solar-selective aluminium titanium oxynitride multilayer coatings was studied under conditions simulating realistic operation of central receiver power plants. The coatings were deposited by cathodic vacuum arc applying an optimized design concept for complete solar-select...
| Autores: | , , , , , , , , , |
|---|---|
| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2018 |
| País: | España |
| Recursos: | Universidad de Salamanca (USAL) |
| Repositorio: | GREDOS. Repositorio Institucional de la Universidad de Salamanca |
| OAI Identifier: | oai:gredos.usal.es:10366/146619 |
| Acesso em linha: | http://hdl.handle.net/10366/146619 |
| Access Level: | acceso abierto |
| Palavra-chave: | Solar selective coatings Thermal stability Optical properties Concentrated solar power Optical simulation Oxynitrides Solar Energy 22 Física energía solar |
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Design of high-temperature solar-selective coatings based on aluminium titanium oxynitrides AlyTi1-y(OxN1-x). Part 2: Experimental validation and durability tests at high temperature.Escobar-Galindo, RamónGuillén, E.Heras Pérez, IreneRincón-Llorente, GonzaloAlcón-Camas, M.Lungwitz, F.Munnik, F.Schumann, ErikAzkona, I.Krauser, MatthiasSolar selective coatingsThermal stabilityOptical propertiesConcentrated solar powerOptical simulationOxynitridesSolar Energy22 Físicaenergía solar[EN] The durability of two solar-selective aluminium titanium oxynitride multilayer coatings was studied under conditions simulating realistic operation of central receiver power plants. The coatings were deposited by cathodic vacuum arc applying an optimized design concept for complete solar-selective coating (SSC) stacks. Compositional, structural and optical characterization of initial and final stacks was performed by scanning electron microscopy, elastic recoil detection, UV–Vis–NIR-IR spectrophotometry and X-Ray diffraction. The design concept of the solar selective coatings was validated by an excellent agreement between simulated and initial experimental stacking order, composition and optical properties. Both SSC stacks were stable in single stage tests of 12 h at 650 °C. At 800 °C, they underwent a structural transformation by full oxidation and they lost their solar selectivity. During cyclic durability tests, multilayer 1, comprised of TiN, Al.64Ti.36N and an Al1.37Ti.54O top layer, fulfilled the performance criterion (PC) ≤ 5% for 300 symmetric, 3 h long cycles at 600 °C in air. Multilayer 2, which was constituted of four AlyTi1-y(OxN1-x) layers, met the performance criterion for 250 cycles (750 h), but was more sensitive to these harsh conditions. With regard to the degradation mechanisms, the coarser microstructure of multilayer 1 is more resistant against oxidation than multilayer 2 with its graded oxygen content. These results confirm that the designed SSCs based on AlyTi1-y(OxN1-x) materials withstand breakdown at 600 °C in air. Therefore, they can be an exciting candidate material for concentrated solar power applications at high temperature.Elsevier202120212018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10366/146619reponame:GREDOS. Repositorio Institucional de la Universidad de Salamancainstname:Universidad de Salamanca (USAL)InglésAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:gredos.usal.es:10366/1466192026-06-07T06:28:51Z |
| dc.title.none.fl_str_mv |
Design of high-temperature solar-selective coatings based on aluminium titanium oxynitrides AlyTi1-y(OxN1-x). Part 2: Experimental validation and durability tests at high temperature. |
| title |
Design of high-temperature solar-selective coatings based on aluminium titanium oxynitrides AlyTi1-y(OxN1-x). Part 2: Experimental validation and durability tests at high temperature. |
| spellingShingle |
Design of high-temperature solar-selective coatings based on aluminium titanium oxynitrides AlyTi1-y(OxN1-x). Part 2: Experimental validation and durability tests at high temperature. Escobar-Galindo, Ramón Solar selective coatings Thermal stability Optical properties Concentrated solar power Optical simulation Oxynitrides Solar Energy 22 Física energía solar |
| title_short |
Design of high-temperature solar-selective coatings based on aluminium titanium oxynitrides AlyTi1-y(OxN1-x). Part 2: Experimental validation and durability tests at high temperature. |
| title_full |
Design of high-temperature solar-selective coatings based on aluminium titanium oxynitrides AlyTi1-y(OxN1-x). Part 2: Experimental validation and durability tests at high temperature. |
| title_fullStr |
Design of high-temperature solar-selective coatings based on aluminium titanium oxynitrides AlyTi1-y(OxN1-x). Part 2: Experimental validation and durability tests at high temperature. |
| title_full_unstemmed |
Design of high-temperature solar-selective coatings based on aluminium titanium oxynitrides AlyTi1-y(OxN1-x). Part 2: Experimental validation and durability tests at high temperature. |
| title_sort |
Design of high-temperature solar-selective coatings based on aluminium titanium oxynitrides AlyTi1-y(OxN1-x). Part 2: Experimental validation and durability tests at high temperature. |
| dc.creator.none.fl_str_mv |
Escobar-Galindo, Ramón Guillén, E. Heras Pérez, Irene Rincón-Llorente, Gonzalo Alcón-Camas, M. Lungwitz, F. Munnik, F. Schumann, Erik Azkona, I. Krauser, Matthias |
| author |
Escobar-Galindo, Ramón |
| author_facet |
Escobar-Galindo, Ramón Guillén, E. Heras Pérez, Irene Rincón-Llorente, Gonzalo Alcón-Camas, M. Lungwitz, F. Munnik, F. Schumann, Erik Azkona, I. Krauser, Matthias |
| author_role |
author |
| author2 |
Guillén, E. Heras Pérez, Irene Rincón-Llorente, Gonzalo Alcón-Camas, M. Lungwitz, F. Munnik, F. Schumann, Erik Azkona, I. Krauser, Matthias |
| author2_role |
author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Solar selective coatings Thermal stability Optical properties Concentrated solar power Optical simulation Oxynitrides Solar Energy 22 Física energía solar |
| topic |
Solar selective coatings Thermal stability Optical properties Concentrated solar power Optical simulation Oxynitrides Solar Energy 22 Física energía solar |
| description |
[EN] The durability of two solar-selective aluminium titanium oxynitride multilayer coatings was studied under conditions simulating realistic operation of central receiver power plants. The coatings were deposited by cathodic vacuum arc applying an optimized design concept for complete solar-selective coating (SSC) stacks. Compositional, structural and optical characterization of initial and final stacks was performed by scanning electron microscopy, elastic recoil detection, UV–Vis–NIR-IR spectrophotometry and X-Ray diffraction. The design concept of the solar selective coatings was validated by an excellent agreement between simulated and initial experimental stacking order, composition and optical properties. Both SSC stacks were stable in single stage tests of 12 h at 650 °C. At 800 °C, they underwent a structural transformation by full oxidation and they lost their solar selectivity. During cyclic durability tests, multilayer 1, comprised of TiN, Al.64Ti.36N and an Al1.37Ti.54O top layer, fulfilled the performance criterion (PC) ≤ 5% for 300 symmetric, 3 h long cycles at 600 °C in air. Multilayer 2, which was constituted of four AlyTi1-y(OxN1-x) layers, met the performance criterion for 250 cycles (750 h), but was more sensitive to these harsh conditions. With regard to the degradation mechanisms, the coarser microstructure of multilayer 1 is more resistant against oxidation than multilayer 2 with its graded oxygen content. These results confirm that the designed SSCs based on AlyTi1-y(OxN1-x) materials withstand breakdown at 600 °C in air. Therefore, they can be an exciting candidate material for concentrated solar power applications at high temperature. |
| publishDate |
2018 |
| dc.date.none.fl_str_mv |
2018 2021 2021 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10366/146619 |
| url |
http://hdl.handle.net/10366/146619 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.rights.none.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
Elsevier |
| publisher.none.fl_str_mv |
Elsevier |
| dc.source.none.fl_str_mv |
reponame:GREDOS. Repositorio Institucional de la Universidad de Salamanca instname:Universidad de Salamanca (USAL) |
| instname_str |
Universidad de Salamanca (USAL) |
| reponame_str |
GREDOS. Repositorio Institucional de la Universidad de Salamanca |
| collection |
GREDOS. Repositorio Institucional de la Universidad de Salamanca |
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1869423207227850752 |
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15,301629 |