FIELD: chemistry.
SUBSTANCE: invention relates to ceramic thermal barrier coating, which has nanostructured and microstructured layer. Ceramic thermal barrier coating on substrate from heat-resistant alloy based on nickel or cobalt, or iron, contains optionally substituted metal binding coating (7) and two layered ceramic layers (16) with internal ceramic (10) and external ceramic (13) layer. Internal ceramic layer (10) is nanostructured and has porosity between 3 vol% and 14 vol%, in particular between 9 vol% and 14 vol%, and external layer (13) has porosity higher than porosity of internal layer (10), in particular at least by 10% higher, most preferably at least by 20% higher. Material for two ceramic layers (10, 13) is similar, in particular stabilised zirconium dioxide, most preferably zirconium dioxide, stabilised with yttrium oxide.
EFFECT: improved viscosity of ceramic thermal barrier coating.
12 cl, 5 dwg
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