Vidros recobertos com camadas delgadas transparentes de SnO2
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
01/07/1998
|
Resumo |
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) 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. |
Formato |
510-513 |
Identificador |
http://dx.doi.org/10.1590/S0100-40421998000400025 Química Nova. Sociedade Brasileira de Química, v. 21, n. 4, p. 510-513, 1998. 0100-4042 http://hdl.handle.net/11449/27560 10.1590/S0100-40421998000400025 S0100-40421998000400025 S0100-40421998000400025.pdf |
Idioma(s) |
por |
Publicador |
Sociedade Brasileira de Química |
Relação |
Química Nova |
Direitos |
openAccess |
Palavras-Chave | #SnO2 thin layers #corrosion resistant #coated borosilicate glass |
Tipo |
info:eu-repo/semantics/article |