Please use this identifier to cite or link to this item: doi:10.22028/D291-24175
Title: Obtenção de revestimentos de alumínio-silício para a proteção química de aço inoxidável
Other Titles: Synthesis of Al2O3-SiO2 ceramic coatings for chemical protection of stainless steel
Author(s): Atik, Mohamed
De Lima Neto, Pedro
Avaca, Luis A.
Aegerter, Michel A.
Language: (Other)
Year of Publication: 1994
OPUS Source: Anais / 38° Congresso Brasileiro de Cerâmica; 2° Encontro de Mineradores e Consumidores : [18 a 21 de junho de 1994, Blumenau, SC] / Associação Brasileira de Cerâmica. - Vol. 1. - São Paulo, SP : Associação Brasileira de Cerâmica, 1994, S. 182-187
SWD key words: Edelstahl
DDC notations: 500 Science
Publikation type: Conference Paper
Abstract: -
Al2O3-SiO2 sol-gel coatings of different compositions have been deposited on 316L stainless steel by dip-coating from a sonocatalyzed sol made by the mixture of Al(OC4H9)3 e Si(OC2H5)4 as precursors and ethanol and acetic acid as solvents. The coatings were densified at 600, 800 and 1000°C and characterized by X-rays diffraction. The influence of the coatings on the corrosion behavior of the substrate was tested in 3% NaCl by potentiodynamic polarization curves at 1 mV s(-1). The electrochemical results showed that the films densified at 800 and 1000°C have a better electrochemical behavior than the films densified at 600°C. An increase in the aluminium content improves the behavior of the coatings.
Link to this record: urn:nbn:de:bsz:291-scidok-23610
Date of registration: 7-Sep-2009
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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