Evaluación anticorrosiva de tricapas cerámicas Sio2-Tio2-Zro2 sintetizadas por el método Sol-Gel

Jorge Hernando Bautista Ruiz; César Armando Ortiz Otálora

Vol. 16 No. 22 (2007)

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Anticorrosive evaluation of Sio2-Tio2-Zro2 ceramic trilayers synthesized by the Sol-Gel method

Published 2009-06-17

Jorge Hernando Bautista Ruiz
César Armando Ortiz Otálora

Jorge Hernando Bautista Ruiz
Universidad Pedagógica y Tecnológica de Colombia

César Armando Ortiz Otálora
Universidad Pedagógica y Tecnológica de Colombia

How to Cite

Bautista Ruiz, J. H., & Ortiz Otálora, C. A. (2009). Anticorrosive evaluation of Sio2-Tio2-Zro2 ceramic trilayers synthesized by the Sol-Gel method. Revista Facultad de Ingeniería, 16(22), 43–48. Retrieved from https://revistas.uptc.edu.co/index.php/ingenieria/article/view/1339

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Abstract

The conformation of trilayers of ceramic coatings of the SiO2-TiO2-ZrO2 system is shown, synthesized by the Sol-gel method, using Si (OC2H5) 4, Ti (OBu) 4 and Zr (OC3H7) 4 as precursors, as EtOH and water, and as a complexing agent 2,4 pentanedione. The ceramic coatings were deposited on AISI / SAE 304 stainless steel substrates using the dip-coating technique. The influence of the coatings on the anticorrosive behavior of the substrate in a 3% HCl solution was studied using Electrochemical Impedance Spectroscopy (EIS) techniques and potentiodynamic polarization curves. Additionally, a morphological study was performed using the Atomic Force Microscopy (AFM) technique. The values of the electrochemical parameters were found to change substantially with the concentration of the precursors added to the effects of the film on the substrate.

Keywords

corrosion, sol-gel, electrochemical techniques

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Author Biography

Jorge Hernando Bautista Ruiz

Físico. Estudiante de Maestría Universidad Pedagógica y Tecnológica de Colombia. Grupo de Investigación en Superficies Electroquímicay Corrosión –GSEC–.

César Armando Ortiz Otálora

Máster. Físico. Docente Escuela de Física, Universidad Pedagógica y Tecnológica de Colombia. Grupo de Investigación en Superficies Electroquímica y Corrosión –GSEC–.

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