Ni Made Intan Putri Suari, Heru Setyawan : Coating Steel with Nanosilica by Pulsed Direct Current Electrophoresis for Corrosion Protection

Ni Made Intan Putri Suari S.T., M.T.
Prof.Dr.Ir. Heru Setyawan M.Eng.

Year

2016

Published in

Advanced Materials Research

External link

Type

Jurnal Internasional

Keywords


Abstract

The purpose of this paper is to investigate the electrophoretic deposited nanosilica on stainless steel for corrosion protection. The electrophoretic deposition (EPD) was carried out by pulsed direct current (PDC) of silica sol made of sodium silicate. The amplitude and frequency of the PDC were varied in the range of 0.1-0.6 V and 30-80 Hz, respectively. The corrosion protection properties of the silica films were analyzed by Electrochemical Impedance Spectroscopy (EIS) in 2 wt% NaCl solution. The experimental results showed that the silica films exhibit good characteristics as indicated by their high pore resistance and low admittance. The silica film corrosion protection characteristics were influenced by the frequency and amplitude of PDC during preparation of electrophoretic deposition.