Crack-free Sol-Gel Coatings for Corrosion Protection of Carbon steel in concrete pore solution: An electrochemical corrosion investigation

2021 ◽  
pp. ArticleID:211026
Author(s):  
Meng Zhang ◽  
Keyword(s):  
Carbon Steel ◽  
Corrosion Protection ◽  
Pore Solution ◽  
Sol Gel ◽  
Electrochemical Corrosion ◽  
Corrosion Investigation

Effect of Nanoparticle Addition in Hybrid Sol-Gel Silane Coating on Corrosion Resistance of Low Carbon Steel

2013 ◽  
Vol 686 ◽  
pp. 244-249 ◽  
Author(s):  
Poovarasi Balan ◽  
Aaron Ng ◽  
Chee Beng Siang ◽  
R.K. Singh Raman ◽  
Eng Seng Chan
Keyword(s):  
Corrosion Resistance ◽  
Carbon Steel ◽  
Electrochemical Impedance ◽  
Sol Gel ◽  
Low Carbon Steel ◽  
Electrochemical Corrosion ◽  
Alumina Nanoparticles ◽  
Low Carbon ◽  
Silane Coating ◽  
Sol Gel Films

Chromium pre-treatments of metal have been replaced by silane pre-treatments as more environmental friendly option. Nanoparticles can be added in the silane sol-gel network have been reported to improve corrosion resistance. In this work, the electrochemical corrosion resistance of low carbon steel coated with hybrid organic-inorganic sol-gel film filled with nanoparticles was evaluated. The sol-gel films have been synthesized from 3-glycidoxy-propyl-trimethoxy-silane (3-GPTMS) and tetra-ethyl-ortho-silicate (TEOS) precursors. These films have been impregnated with 300 ppm of silica or alumina nanoparticles. The electrochemical behavior of the coated steel was evaluated by means of electrochemical impedance spectroscopy (EIS) and scanning electron microscopy (SEM). Equivalent circuit modeling, used for quantifying the EIS measurements showed that sol-gel films containing silica nanoparticles improved the barrier properties of the silane coating. The silica nanoparticle-containing films showed highest initial pore resistance over the five days of immersion in 0.05M NaCl.

scholarly journals New architectured hybrid sol-gel coatings for wear and corrosion protection of low-carbon steel

2016 ◽  
Vol 99 ◽  
pp. 337-345 ◽  
Author(s):  
Lavollée Claire ◽  
Gressier Marie ◽  
Garcia Julien ◽  
Sobrino Jean-Michel ◽  
Reby Jean ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Corrosion Protection ◽  
Sol Gel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Wear And Corrosion

Electroactive Epoxy-Titania Hybrid Anti-Corrosive Coatings Prepared by Small Basic Molecule-Catalyzed Sol-Gel Route

2013 ◽  
Vol 747 ◽  
pp. 35-38 ◽  
Author(s):  
Cheng Ming Chang ◽  
Jui Ming Yeh
Keyword(s):  
Titanium Dioxide ◽  
Corrosion Protection ◽  
Sol Gel ◽  
Electrochemical Corrosion ◽  
Oxygen Barrier ◽  
Protection Effect ◽  
Barrier Coating ◽  
Cold Rolled ◽  
Passive Metal ◽  
Oxygen Barrier Property

This article, the preparation and corrosion protection studies of a series of electroactive epoxy titanium dioxide (EET) hybrid materials containing conjugated segments of electroactive amino-capped aniline trimer (ACAT) and titanium dioxide (TiO2) nanoparticles of ~100 nm in diameter was first presented. It should be noted that EET at higher concentration of TiO2 was found to reveal better corrosion protection effect as compared to neat electroactive epoxy coating on cold-rolled steel (CRS) electrode based on electrochemical corrosion measurements in 3.5 wt% NaCl electrolyte. Effective enhancement of corrosion protection of EET coatings could be interpreted by electroactive epoxy as a densely physical barrier coating and the redox catalytic capabilities of ACAT units existed in EET may induce the formation of passive metal oxide layers on CRS electrode. Further the well-dispersed TiO2 nanoparticles in EET matrix could act as effective hinder to enhance the oxygen barrier property of EET.

scholarly journals Improvement of barrier properties of a hybrid sol–gel coating by incorporation of synthetic talc-like phyllosilicates for corrosion protection of a carbon steel

2012 ◽  
Vol 206 (11-12) ◽  
pp. 2884-2891 ◽  
Author(s):  
Karine Joncoux-Chabrol ◽  
Jean-Pierre Bonino ◽  
Marie Gressier ◽  
Marie-Joëlle Menu ◽  
Nadine Pébère
Keyword(s):  
Carbon Steel ◽  
Corrosion Protection ◽  
Sol Gel ◽  
Barrier Properties
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