Corrosion of SiC Ceramic for Electromagnetic Pump in Molten Al
The corrosion resistance of clay-bonded SiC for the lift tube of electromagnetic pump in molten Al was studied.The phase composition and microstructure of corrosion layer of the attacked specimen was examined by SEM and XRD.The results show that the anti-erosion ability significantly decreases with the increase of temperature of molten Al.The thickness of corrosion layer significantly increases with the increase of corrosion time.The corrosion of clay-bonded SiC is grain boundary erosion.