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Growth, Characterization And Thermal Stability Of AlN/Ti/AlN/SiO2 Multilayered Selective Solar Absorber Coating For High Temperature Applications

In this work, AlN/Ti/AlN/SiO2 multilayered selective solar absorber coating (MSSAC) was deposited onto Fe3O4 modified stainless steel substrate using DC/RF magnetron sputtering. The substrate modification was done by simple annealing in air at 600 oC for 1h and achieved rough oxide layer of Fe3O4 on...

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Main Authors: Bello, Mutawalli, Shanmughan, Subramani
Format: Conference or Workshop Item
Language:English
Published: 2020
Subjects:
QC1-999 Physics
Online Access:http://eprints.usm.my/49063/1/ABSTRACT%20BOOK%20MNRG%202020.pdf%20cut%2056.pdf
http://eprints.usm.my/49063/
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spelling my.usm.eprints.49063 http://eprints.usm.my/49063/ Growth, Characterization And Thermal Stability Of AlN/Ti/AlN/SiO2 Multilayered Selective Solar Absorber Coating For High Temperature Applications Bello, Mutawalli Shanmughan, Subramani QC1-999 Physics In this work, AlN/Ti/AlN/SiO2 multilayered selective solar absorber coating (MSSAC) was deposited onto Fe3O4 modified stainless steel substrate using DC/RF magnetron sputtering. The substrate modification was done by simple annealing in air at 600 oC for 1h and achieved rough oxide layer of Fe3O4 on the surface of the substrate. The resulting samples were subjected to heat treatment at various temperatures in air for 2 h, and was characterized by X-ray diffraction, scanning electron microscopy, atomic force microscope, energy dispersive X-ray spectroscopy and UV-Vis-NIR spectrophotometer. The optical constants of the MSSAC was determined from the measured experimental reflectance data. The AlN/Ti/AlN/SiO2 MSSAC was found to be thermally stable up to 500 oC in air with high solar absorptance of 93.04 in the solar spectrum range and low thermal emittance of 12.13 in the infrared range. The high absorptance is attributed to the columnar growth of the film as propped by SEM and AFM analysis and the antireflection layer of SiO2. However, at 600 oC, the solar absorptance decreased to 91.78 from 93.04 and the thermal emittance rose to 19.03 from 12.13, which is attributed decrease in the surface roughness of the coatings. 2020-12-02 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.usm.my/49063/1/ABSTRACT%20BOOK%20MNRG%202020.pdf%20cut%2056.pdf Bello, Mutawalli and Shanmughan, Subramani (2020) Growth, Characterization And Thermal Stability Of AlN/Ti/AlN/SiO2 Multilayered Selective Solar Absorber Coating For High Temperature Applications. In: 5th Meeting of Malaysia Nitrides Research Group (MNRG 2020), 1-2 December 2020.
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic QC1-999 Physics
spellingShingle QC1-999 Physics
Bello, Mutawalli
Shanmughan, Subramani
Growth, Characterization And Thermal Stability Of AlN/Ti/AlN/SiO2 Multilayered Selective Solar Absorber Coating For High Temperature Applications
description In this work, AlN/Ti/AlN/SiO2 multilayered selective solar absorber coating (MSSAC) was deposited onto Fe3O4 modified stainless steel substrate using DC/RF magnetron sputtering. The substrate modification was done by simple annealing in air at 600 oC for 1h and achieved rough oxide layer of Fe3O4 on the surface of the substrate. The resulting samples were subjected to heat treatment at various temperatures in air for 2 h, and was characterized by X-ray diffraction, scanning electron microscopy, atomic force microscope, energy dispersive X-ray spectroscopy and UV-Vis-NIR spectrophotometer. The optical constants of the MSSAC was determined from the measured experimental reflectance data. The AlN/Ti/AlN/SiO2 MSSAC was found to be thermally stable up to 500 oC in air with high solar absorptance of 93.04 in the solar spectrum range and low thermal emittance of 12.13 in the infrared range. The high absorptance is attributed to the columnar growth of the film as propped by SEM and AFM analysis and the antireflection layer of SiO2. However, at 600 oC, the solar absorptance decreased to 91.78 from 93.04 and the thermal emittance rose to 19.03 from 12.13, which is attributed decrease in the surface roughness of the coatings.
format Conference or Workshop Item
author Bello, Mutawalli
Shanmughan, Subramani
author_facet Bello, Mutawalli
Shanmughan, Subramani
author_sort Bello, Mutawalli
title Growth, Characterization And Thermal Stability Of AlN/Ti/AlN/SiO2 Multilayered Selective Solar Absorber Coating For High Temperature Applications
title_short Growth, Characterization And Thermal Stability Of AlN/Ti/AlN/SiO2 Multilayered Selective Solar Absorber Coating For High Temperature Applications
title_full Growth, Characterization And Thermal Stability Of AlN/Ti/AlN/SiO2 Multilayered Selective Solar Absorber Coating For High Temperature Applications
title_fullStr Growth, Characterization And Thermal Stability Of AlN/Ti/AlN/SiO2 Multilayered Selective Solar Absorber Coating For High Temperature Applications
title_full_unstemmed Growth, Characterization And Thermal Stability Of AlN/Ti/AlN/SiO2 Multilayered Selective Solar Absorber Coating For High Temperature Applications
title_sort growth, characterization and thermal stability of aln/ti/aln/sio2 multilayered selective solar absorber coating for high temperature applications
publishDate 2020
url http://eprints.usm.my/49063/1/ABSTRACT%20BOOK%20MNRG%202020.pdf%20cut%2056.pdf
http://eprints.usm.my/49063/
_version_ 1698697789298442240
score 13.211869

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