Vidros recobertos com camadas delgadas transparentes de SnO2


Autoria(s): Rizzato, Alessandro P.; Pulcinelli, Sandra Helena; Santilli, Celso Valentim
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

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