NANOSTRUCTURED COMPOSITE COATING OF ZIRCONIUM OXIDE Russian patent published in 2016 - IPC C23C4/10 C23C14/35 C01G25/02 B82B1/00 B82Y30/00 

FIELD: engines.

SUBSTANCE: invention can be used in manufacture of parts of turbine engines and installations that require formation of coatings on working surfaces, having a high value of adhesion and cohesion. Nanostructured composite coating of zirconium oxide stabilised with yttrium is applied on surface of nickel alloy by ion-beam sputtering. Coating contains gradient transition layer from gradient nanocomposite material containing two phases: metal phase with composition corresponding to composition of protected surface from nickel alloy, and zirconium oxide of different stoichiometry. Said layer contains zirconium oxide in non-oxidised nickel alloy. Phase ratio in transition layer varies with increase in proportion of oxide phase with increasing film thickness.

EFFECT: invention allows to form smooth transition from metallic material to oxide without interphase boundaries of macroscopic size.

1 cl