Tiwari, S K and Tripathi, Manju and Singh, Raghuvir (2013) Influence of SiO, Substitution on Corrosion Behavior of Sol-gel TiO,Coating on Mild Steel. IIM Metal News, 16(5) . pp. 1-4.
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Titania with and without silica additions were deposited on mild steel (MS) by solgel method to enlir.-ince its corrosion resistance A conversion coating was applied on MS substrate prior to sot-gel coating to control the substrate's oxidation during heat treatment of the coating. The Ti0,-SiO2 coatings (SiO, = 0,10, 30 and 50 mor/o) were characterized by X-ray diffraction Corrosion and Surface Engineering Division„ FT-IR, SEM and contact angle measurement. The corrosion resistance of sot-gel coatings was evaluated in 3.5% NaCI solution by open-circuit potential (OCP), electrochemical impedance and potentiodynamic polarization techniques. The so!-gel coatings exhibited a barrier type protection and reduced corrosion current density of the substrate by 4 orders of magnitude.Corrosion resistance of coating is reduced with increase in SiO, addition in Ti02 coating matrix.
|Uncontrolled Keywords:||Mild steel. Corrosion protection, Coating. Sol--gel, TiO,-SiO,|
|Divisions:||Material Science and Technology|
|Deposited By:||Sahu A K|
|Deposited On:||19 Sep 2014 17:00|
|Last Modified:||19 Sep 2014 17:00|
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