FIELD: metallurgy.
SUBSTANCE: thermo-protecting coating for part out of alloy on base of cobalt or nickel consists at least of three thermo-protecting layer. Internal ceramic layer nearest to a base of the said part has porosity within the range from 5 vol. % to 11 vol. %; internal ceramic layer has porosity within the range from 20 vol.% to 27 vol. %. Intermediate ceramic layer is positioned between the internal and external ceramic layers. Said ceramic layers are made out of zirconium dioxide not stabilised or completely stabilised with sodium oxide, and/or calcium oxide, and/or with magnesium oxide.
EFFECT: improved resistance to thermal and mechanic damages.
17 cl, 6 dwg
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