Selective Surfaces of Black Chromium for Use in Solar Absorbers
Main Author: | |
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Publication Date: | 2018 |
Other Authors: | , , , |
Format: | Article |
Language: | eng |
Source: | Materials research (São Carlos. Online) |
Download full: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000100101 |
Summary: | One of the applications of selective surfaces is to improve performance of solar absorbers. The purpose of this work is to produces selective coatings with high absorption of solar radiation in the range of UV/Vis/NIR. It was prepared a selective surface composed of black chromium (Cr/Cr2O3) deposited on substrates of AISI 304 stainless steel using the technique of electrolytic deposition for application in solar thermal absorbers. The great parameters for deposition consisted of a continuous electric current of 2A for 90s, at a constant temperature of 40°C. After deposition, the samples under went to a heat treatment at 600°C for 2h for oxidation. The coatings thicknesses were determined. From the SEM analysis coupled with EDS, it was found that the microstructures reported sample of cermets. The XRD results show diffraction peaks related to metallic chromium (Cr) and chromium oxide (Cr2O3). Spectral absorptance values more 90.0% were found. |
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Selective Surfaces of Black Chromium for Use in Solar Absorbersselective surfacessolar absorbersblack chromiumelectrolytic depositionOne of the applications of selective surfaces is to improve performance of solar absorbers. The purpose of this work is to produces selective coatings with high absorption of solar radiation in the range of UV/Vis/NIR. It was prepared a selective surface composed of black chromium (Cr/Cr2O3) deposited on substrates of AISI 304 stainless steel using the technique of electrolytic deposition for application in solar thermal absorbers. The great parameters for deposition consisted of a continuous electric current of 2A for 90s, at a constant temperature of 40°C. After deposition, the samples under went to a heat treatment at 600°C for 2h for oxidation. The coatings thicknesses were determined. From the SEM analysis coupled with EDS, it was found that the microstructures reported sample of cermets. The XRD results show diffraction peaks related to metallic chromium (Cr) and chromium oxide (Cr2O3). Spectral absorptance values more 90.0% were found.ABM, ABC, ABPol2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000100101Materials Research v.21 n.1 2018reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2017-0556info:eu-repo/semantics/openAccessNunes,Rogério Antônio XavierCosta,Vilma ConceiçãoSade,WagnerAraújo,Frederico ResendeSilva,Guilherme Marconieng2018-05-11T00:00:00Zoai:scielo:S1516-14392018000100101Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2018-05-11T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Selective Surfaces of Black Chromium for Use in Solar Absorbers |
title |
Selective Surfaces of Black Chromium for Use in Solar Absorbers |
spellingShingle |
Selective Surfaces of Black Chromium for Use in Solar Absorbers Nunes,Rogério Antônio Xavier selective surfaces solar absorbers black chromium electrolytic deposition |
title_short |
Selective Surfaces of Black Chromium for Use in Solar Absorbers |
title_full |
Selective Surfaces of Black Chromium for Use in Solar Absorbers |
title_fullStr |
Selective Surfaces of Black Chromium for Use in Solar Absorbers |
title_full_unstemmed |
Selective Surfaces of Black Chromium for Use in Solar Absorbers |
title_sort |
Selective Surfaces of Black Chromium for Use in Solar Absorbers |
author |
Nunes,Rogério Antônio Xavier |
author_facet |
Nunes,Rogério Antônio Xavier Costa,Vilma Conceição Sade,Wagner Araújo,Frederico Resende Silva,Guilherme Marconi |
author_role |
author |
author2 |
Costa,Vilma Conceição Sade,Wagner Araújo,Frederico Resende Silva,Guilherme Marconi |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Nunes,Rogério Antônio Xavier Costa,Vilma Conceição Sade,Wagner Araújo,Frederico Resende Silva,Guilherme Marconi |
dc.subject.por.fl_str_mv |
selective surfaces solar absorbers black chromium electrolytic deposition |
topic |
selective surfaces solar absorbers black chromium electrolytic deposition |
description |
One of the applications of selective surfaces is to improve performance of solar absorbers. The purpose of this work is to produces selective coatings with high absorption of solar radiation in the range of UV/Vis/NIR. It was prepared a selective surface composed of black chromium (Cr/Cr2O3) deposited on substrates of AISI 304 stainless steel using the technique of electrolytic deposition for application in solar thermal absorbers. The great parameters for deposition consisted of a continuous electric current of 2A for 90s, at a constant temperature of 40°C. After deposition, the samples under went to a heat treatment at 600°C for 2h for oxidation. The coatings thicknesses were determined. From the SEM analysis coupled with EDS, it was found that the microstructures reported sample of cermets. The XRD results show diffraction peaks related to metallic chromium (Cr) and chromium oxide (Cr2O3). Spectral absorptance values more 90.0% were found. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000100101 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000100101 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1980-5373-mr-2017-0556 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
ABM, ABC, ABPol |
publisher.none.fl_str_mv |
ABM, ABC, ABPol |
dc.source.none.fl_str_mv |
Materials Research v.21 n.1 2018 reponame:Materials research (São Carlos. Online) instname:Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
ABM ABC ABPOL |
institution |
ABM ABC ABPOL |
reponame_str |
Materials research (São Carlos. Online) |
collection |
Materials research (São Carlos. Online) |
repository.name.fl_str_mv |
Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
dedz@power.ufscar.br |
_version_ |
1754212672100892672 |