Corrosion study of SiO₂–CaO–Al₂O₃–Na₂O–TiO₂ glass coating on steel

Abstract

A protective coating of 60SiO 2 -15CaO-10Al 2 O 3 -10Na 2 O-5TiO 2 glass ceramic was performed on the ferritic stainless steel substrate by slurry technique. X-ray diffraction and scanning electron microscopy were used for detailed analyses of the coating. Open circuit potential, electrochemical impedance spectroscopy and potentiodynamic polarisation studies were carried out in artificial seawater to monitor the corrosion resistance behaviour of the coating at room temperature. The presence of coating reduced the corrosion current density I corr and shifted corrosion potential E corr towards more noble values. It has been established through this study that glass ceramic coating on the steel substrate essentially improves the corrosion resistance property of the alloy and can be used for marine applications.

Abrasion-resistant CMAS glass-ceramic coatings incorporated with B4C particles

“…The development of GCCs with improved mechanical characteristics has received a lot more scientific focus in recent years [4,[6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]. However, no research on the incorporation of B 4 C particles into GCCs has been done in the literature.…”