Influence of CeO2-coating on the high-temperature oxidation of chromium

The reactive-element effect on high-temperature oxidation of chromium metal was studied at oxygen pressures of 105 Pa (1 atm) and 0.67 Pa and at temperatures of 800 and 1050°C under both isothermal and cyclic conditions. The reactive element, cerium, was applied as a cerium-oxide coating by sol-gel deposition. Growth and adherence of the chromia scale on the metallic substrate were investigated by kinetic weight-gain measurements, and the …