| 摘要 |
<p>A product which is to be exposed to a hot gas and has a thermal barrier layer, such as a component for hot gas ducts (turbine blades, heat shields, etc.), has a metallic base body made of a superalloy based on nickel, cobalt or iron. An adhesion promoter layer also serves to form aluminum oxide/chromium oxide. A thermal barrier layer is formed of a ternary or pseudoternary oxide having a pyrochlore or perovskite structure. The oxide is stable with respect to phase between room temperature and melting temperature even in the absence of a phase stabilizer. A process is provided for producing components of that type by atmospheric plasma spraying or electron beam PVD methods.</p> |
