Resumo

BAUTISTA-RUIZ, Jorge H.; APERADOR, William  e  DELGADO, Arnoldo E.. PROPIEDADES MECÁNICAS DE PELÍCULAS HÍBRIDAS (ORGÁNICO-INORGÁNICO) SOBRE ACERO INOXIDABLE 304. Rev. ing. univ. Medellín [online]. 2011, vol.10, n.19, pp.47-54. ISSN 1692-3324.

This article shows the creation of ceramic films of the SiO₂-TiO₂ Organic Polymer hybrid system from Tetraethyl-Orthosilicate (Si (OC₂H₅)₄) and Titanium Tetrabutoxide (Ti(OBu)₄) synthesized through the sol-gel method in several volumetric concentrations of precursors. This hybrid system was deposited on AISI 304 stainless steel substrates through the dip-coating technique. Feasibility for obtaining hybrid and homogeneous coatings on this type of substrate and evaluating the surface properties was studies. For such a purpose, the coating microhardness and adhesion were studies. Additionally, the film surface was characterized through the SEM (Scanning Electron Microscopy). The study concluded that characteristics of films change in function of the volumetric amount of precursors used for creating films.

Palavras-chave : hybrid coatings; sol-gel; stainless steel; adhesion; microhardness.

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