Corrosion of soda lime silicate glasses co-doped with Gd2O3 and Y2O3

Corrosion behaviors of Gd2O3 and Y2O3 co-doped silicate glasses have been carried out at low reaction progress. The better enhance effect of co-doping with Gd2O3 and Y2O3 on the silicate glass resistance against attacking of neutral and acid media is observed, while the alkaline resistance is Y2O3 > Gd2O3 + Y2O3 > Gd2O3. Moreover, extreme value is also observed in variation of released ions concentration, pH value and mass loss of glass when substituting Y2O3 for Gd2O3.