HIGH TEMPERATURE EROSION RESISTANT, ABRADABLE THERMAL BARRIER COMPOSITE COATING

摘要

A composite thermal barrier coating system includes a honeycomb metallic structure (2) filled with high thermal expansion ceramic hollow spheres (6) in a phosphate bonded matrix. The composite thermal barrier coating system may be manufactured to thicknesses (T) in excess of current thermal barrier coating systems, thereby imparting greater thermal protection. Superior erosion resistance and abrasion properties are also achieved. The composite thermal barrier coating is useful on combustion turbine components such as ring seal segments, vane segment shrouds, transitions and combustors.