Why is Steel is coated with thin layer ceramic to help protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly?

Steel is coated with a thin layer of ceramic to enhance its resistance to corrosion by providing a protective barrier against moisture and corrosive substances. When the temperature of the steel increases significantly, the ceramic coating may experience thermal expansion, which can lead to cracking or scaling. Additionally, excessive heat can weaken the bond between the ceramic and the steel, potentially compromising the protective properties of the coating and exposing the steel to corrosion.