Protected thermal barrier coating composite with multiple coatings

A thermal barrier coated composite for protection against environmental contaminants and contaminant compositions comprising:

• a thermal barrier coating on a part;
• at least one first dense layer adhering to an outer surface of the thermal barrier coating, said first layer being a sacrificial coating or an impermeable barrier coating, where the sacrificial coating increases a melting temperature of the contaminant composition about 10.degree. C. above a surface temperature of the thermal barrier coated on the part at an operating temperature of the part and where the impermeable barrier coating inhibits contaminants and contaminant compositions from infiltrating into or reacting with the underlying thermal barrier coating;
• and
• a second dense layer adhering to an outermost surface of the first dense layer, said second layer being a sacrificial coating, an impermeable barrier coating, or a non-wetting coating, where the sacrificial coating increases a melting temperature of the contaminant composition about 10.degree. C. above a surface temperature of the thermal barrier coated on the part at an operating temperature of the part, where the impermeable barrier coating inhibits contaminants and contaminant compositions from infiltrating into or reacting with the underlying thermal barrier coating, and where the non-wetting coating provides an outer surface that is non-wetting to environmental contaminants and contaminant compositions.