Vidros recobertos com camadas delgadas transparentes de SnO2
Autor(a) principal: | |
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Data de Publicação: | 1998 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Química Nova (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421998000400025 |
Resumo: | SnO2 thin layers, prepared from aqueous colloidal suspensions by the sol-gel process, have been dip-coated on commercial borosilicate glasses. The effect of the conditions of deposition on the optical and structural characteristics of the thin layers was analysed by UV-Vis spectroscopy, x-ray reflectometry and electron scanning microscopy. Layers prepared with withdrawal speed in between 0.1 and 10cm/min show thickness smaller than 90nm, roughness of the order of 2nm and transmittance higher than 80%, resulting in good optical quality samples. The roughness increases from 2 to 11nm as the withdrawal speed increases from 10 to 80cm/min, what seems to be associated to the enlargement of the layers thickness (> 90nm). The measurements of mass loss, done after etching with fluoridric acid show that the coated samples are more corrosion resistant than the uncoated borosilicate glass. |
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Vidros recobertos com camadas delgadas transparentes de SnO2SnO2 thin layerscorrosion resistantcoated borosilicate glassSnO2 thin layers, prepared from aqueous colloidal suspensions by the sol-gel process, have been dip-coated on commercial borosilicate glasses. The effect of the conditions of deposition on the optical and structural characteristics of the thin layers was analysed by UV-Vis spectroscopy, x-ray reflectometry and electron scanning microscopy. Layers prepared with withdrawal speed in between 0.1 and 10cm/min show thickness smaller than 90nm, roughness of the order of 2nm and transmittance higher than 80%, resulting in good optical quality samples. The roughness increases from 2 to 11nm as the withdrawal speed increases from 10 to 80cm/min, what seems to be associated to the enlargement of the layers thickness (> 90nm). The measurements of mass loss, done after etching with fluoridric acid show that the coated samples are more corrosion resistant than the uncoated borosilicate glass.Sociedade Brasileira de Química1998-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421998000400025Química Nova v.21 n.4 1998reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40421998000400025info:eu-repo/semantics/openAccessRizzato,Alessandro P.Pulcinelli,Sandra H.Santilli,Celso V.por2002-11-05T00:00:00Zoai:scielo:S0100-40421998000400025Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2002-11-05T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Vidros recobertos com camadas delgadas transparentes de SnO2 |
title |
Vidros recobertos com camadas delgadas transparentes de SnO2 |
spellingShingle |
Vidros recobertos com camadas delgadas transparentes de SnO2 Rizzato,Alessandro P. SnO2 thin layers corrosion resistant coated borosilicate glass |
title_short |
Vidros recobertos com camadas delgadas transparentes de SnO2 |
title_full |
Vidros recobertos com camadas delgadas transparentes de SnO2 |
title_fullStr |
Vidros recobertos com camadas delgadas transparentes de SnO2 |
title_full_unstemmed |
Vidros recobertos com camadas delgadas transparentes de SnO2 |
title_sort |
Vidros recobertos com camadas delgadas transparentes de SnO2 |
author |
Rizzato,Alessandro P. |
author_facet |
Rizzato,Alessandro P. Pulcinelli,Sandra H. Santilli,Celso V. |
author_role |
author |
author2 |
Pulcinelli,Sandra H. Santilli,Celso V. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Rizzato,Alessandro P. Pulcinelli,Sandra H. Santilli,Celso V. |
dc.subject.por.fl_str_mv |
SnO2 thin layers corrosion resistant coated borosilicate glass |
topic |
SnO2 thin layers corrosion resistant coated borosilicate glass |
description |
SnO2 thin layers, prepared from aqueous colloidal suspensions by the sol-gel process, have been dip-coated on commercial borosilicate glasses. The effect of the conditions of deposition on the optical and structural characteristics of the thin layers was analysed by UV-Vis spectroscopy, x-ray reflectometry and electron scanning microscopy. Layers prepared with withdrawal speed in between 0.1 and 10cm/min show thickness smaller than 90nm, roughness of the order of 2nm and transmittance higher than 80%, resulting in good optical quality samples. The roughness increases from 2 to 11nm as the withdrawal speed increases from 10 to 80cm/min, what seems to be associated to the enlargement of the layers thickness (> 90nm). The measurements of mass loss, done after etching with fluoridric acid show that the coated samples are more corrosion resistant than the uncoated borosilicate glass. |
publishDate |
1998 |
dc.date.none.fl_str_mv |
1998-07-01 |
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=S0100-40421998000400025 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421998000400025 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
10.1590/S0100-40421998000400025 |
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 |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Química Nova v.21 n.4 1998 reponame:Química Nova (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Química Nova (Online) |
collection |
Química Nova (Online) |
repository.name.fl_str_mv |
Química Nova (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
quimicanova@sbq.org.br |
_version_ |
1750318100530593792 |