ChemInform Abstract: Corrosion of Silicon Nitride Ceramics in Aqueous Hydrogen Chloride Solutions.

Abstract

The effect of processing additives such as Y2O3, Al2O3, and AlN on the corrosion behavior of Si3N4 ceramics in 0.1‐10 M HCl solutions is studied at 50‐100 °C. Si3N4 ceramics without additives are more resistant to corrosion attack than ceramics containing additives, which show significant degradation of the fracture strength.