Vol. 35, Issue 4, pp. 881-886 (2005)

Abstract

Hybrid sols based on TEOS–OCTMO (tetraethylorthosilicate–octyltrimethoxysilane) and TEOS–TEOT–OCTMO (tetraethylorthosilicate–tetraethylorthotitanate–octyltrimethoxysilane) were prepared by sol-gel method. The sols were electrodeposited on the steel substrates under different electric field strength. Microstructure of the layers was analysed by a scanning electron microscope and infrared spectroscopy methods. Impedance spectroscopy was applied to evaluate tightness of the layers.