The effects of mechanical activation on corrosion resistance of cordierite ceramics

Abstract

The corrosion degrees of produced non-activated and activated cordierite-based ceramics were investigated in hydrochloric and sulfuric acid solutions. The composition of talc, alumina, and kaolinite powders was mechanically activated in a planetary mill. The concentrations of aluminum, magnesium, silicon, calcium, and potassium leached to the acid solutions from non-activated and activated cordierites were measured using ICP-OES. The amorphization of the structures was examined by XRD analysis. As a result, it has been determined that activated cordierite-based ceramics are more durable, and sulfuric acid solution causes more corrosion than hydrochloric acid.