Optical properties and thermal stability of AlCrON-based multilayer solar selective absorbing coating for high temperature applications

A multilayer coating comprising Cr as IR reflector, alternative AlCrN/AlCrON as absorber and AlCrO as anti-reflective layer has been designed and deposited on stainless-steel substrate by cathodic arc ion plating. It was found that the selectivity (α/ε) of multilayer coating was increased from 0.919...

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Autores principales:	Xiaobo Wang, Xiaopeng Yuan, Dianqing Gong, Xudong Cheng, Kewei Li
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Solar selective absorbing coating Thermal stability Optical properties Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/59a2521aa2fa4962ab88e770ba400958
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spelling	oai:doaj.org-article:59a2521aa2fa4962ab88e770ba4009582021-11-30T04:16:18ZOptical properties and thermal stability of AlCrON-based multilayer solar selective absorbing coating for high temperature applications2238-785410.1016/j.jmrt.2021.11.068https://doaj.org/article/59a2521aa2fa4962ab88e770ba4009582021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2238785421013478https://doaj.org/toc/2238-7854A multilayer coating comprising Cr as IR reflector, alternative AlCrN/AlCrON as absorber and AlCrO as anti-reflective layer has been designed and deposited on stainless-steel substrate by cathodic arc ion plating. It was found that the selectivity (α/ε) of multilayer coating was increased from 0.919/0.128 to 0.928/0.105 after annealing at 550 °C in vacuum for 2000 h. Microstructural analysis revealed the formation of nanocrystalline/amorphous composite structures in the AlCrN/AlCrON absorbers and AlCrO anti-reflective layer, which was beneficial to improve the thermal tolerance of the multilayer coating by restraining nanoparticles agglomeration and interface degradation. The enhancement in selectivity after vacuum annealing was ascribed to the partial recrystallization of the amorphous matrices, resulting in the formation of nitride nanoparticles, which can promote the intrinsic absorption due to the increase of optical path. However, the multilayer coating destabilized when annealed at 550 °C in air for 2000 h. Based on the microstructural characterization, the corresponding failure mechanism was attributed to the element migration between adjacent sublayers, structural relaxation of the amorphous matrix, and surface solute atoms segregation induced oxidation and coalescence of nanoparticles, which degenerated the intrinsic absorption and localized surface plasmon resonance of nanoparticles in AlCrN and AlCrON absorbers.Xiaobo WangXiaopeng YuanDianqing GongXudong ChengKewei LiElsevierarticleSolar selective absorbing coatingThermal stabilityOptical propertiesMining engineering. MetallurgyTN1-997ENJournal of Materials Research and Technology, Vol 15, Iss , Pp 6162-6174 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Solar selective absorbing coating Thermal stability Optical properties Mining engineering. Metallurgy TN1-997
spellingShingle	Solar selective absorbing coating Thermal stability Optical properties Mining engineering. Metallurgy TN1-997 Xiaobo Wang Xiaopeng Yuan Dianqing Gong Xudong Cheng Kewei Li Optical properties and thermal stability of AlCrON-based multilayer solar selective absorbing coating for high temperature applications
description	A multilayer coating comprising Cr as IR reflector, alternative AlCrN/AlCrON as absorber and AlCrO as anti-reflective layer has been designed and deposited on stainless-steel substrate by cathodic arc ion plating. It was found that the selectivity (α/ε) of multilayer coating was increased from 0.919/0.128 to 0.928/0.105 after annealing at 550 °C in vacuum for 2000 h. Microstructural analysis revealed the formation of nanocrystalline/amorphous composite structures in the AlCrN/AlCrON absorbers and AlCrO anti-reflective layer, which was beneficial to improve the thermal tolerance of the multilayer coating by restraining nanoparticles agglomeration and interface degradation. The enhancement in selectivity after vacuum annealing was ascribed to the partial recrystallization of the amorphous matrices, resulting in the formation of nitride nanoparticles, which can promote the intrinsic absorption due to the increase of optical path. However, the multilayer coating destabilized when annealed at 550 °C in air for 2000 h. Based on the microstructural characterization, the corresponding failure mechanism was attributed to the element migration between adjacent sublayers, structural relaxation of the amorphous matrix, and surface solute atoms segregation induced oxidation and coalescence of nanoparticles, which degenerated the intrinsic absorption and localized surface plasmon resonance of nanoparticles in AlCrN and AlCrON absorbers.
format	article
author	Xiaobo Wang Xiaopeng Yuan Dianqing Gong Xudong Cheng Kewei Li
author_facet	Xiaobo Wang Xiaopeng Yuan Dianqing Gong Xudong Cheng Kewei Li
author_sort	Xiaobo Wang
title	Optical properties and thermal stability of AlCrON-based multilayer solar selective absorbing coating for high temperature applications
title_short	Optical properties and thermal stability of AlCrON-based multilayer solar selective absorbing coating for high temperature applications
title_full	Optical properties and thermal stability of AlCrON-based multilayer solar selective absorbing coating for high temperature applications
title_fullStr	Optical properties and thermal stability of AlCrON-based multilayer solar selective absorbing coating for high temperature applications
title_full_unstemmed	Optical properties and thermal stability of AlCrON-based multilayer solar selective absorbing coating for high temperature applications
title_sort	optical properties and thermal stability of alcron-based multilayer solar selective absorbing coating for high temperature applications
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/59a2521aa2fa4962ab88e770ba400958
work_keys_str_mv	AT xiaobowang opticalpropertiesandthermalstabilityofalcronbasedmultilayersolarselectiveabsorbingcoatingforhightemperatureapplications AT xiaopengyuan opticalpropertiesandthermalstabilityofalcronbasedmultilayersolarselectiveabsorbingcoatingforhightemperatureapplications AT dianqinggong opticalpropertiesandthermalstabilityofalcronbasedmultilayersolarselectiveabsorbingcoatingforhightemperatureapplications AT xudongcheng opticalpropertiesandthermalstabilityofalcronbasedmultilayersolarselectiveabsorbingcoatingforhightemperatureapplications AT keweili opticalpropertiesandthermalstabilityofalcronbasedmultilayersolarselectiveabsorbingcoatingforhightemperatureapplications
_version_	1718406802948751360

Optical properties and thermal stability of AlCrON-based multilayer solar selective absorbing coating for high temperature applications

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