Article ID Journal Published Year Pages File Type
1662124 Surface and Coatings Technology 2006 6 Pages PDF
Abstract

The densification of a ceramic coating based on SiO2–Al2O3–TiO2 by using wet processing was investigated by adding excess alkali silicates. Ceramic composite films (80–100 μm thick) added alkali silicates were deposited on a steel plate by slurry coating with a doctor blade, followed by drying and calcination. The corrosion test in 1 mol/l HCl solution revealed that the number of through-holes in the coating decreased drastically with increasing the amount of alkali silicates (26, 30, 33, 40 wt.%) and the calcination temperature up to 800 °C. The coatings involving alkali silicates of 33 and 40 wt.% were stable to heating up to 800 °C for thermal shock tested in air. The adhesive strength was also found to increase by three times with increasing amounts of alkali silicates.

Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
Authors
, , , , , , ,