METHOD OF MAKING HIGHER THERMAL STRENGTH HEAT-RESISTANT CERMET COAT

摘要

FIELD: metallurgy.SUBSTANCE: method of making proposed coat for aircraft and rocket gas turbines and combustion chambers comprises application of alternating ceramic and metal plies on working surface by ion-plasma spraying. First metal ply is applied on said surface. All metal lies are made of identical-depth nickel, depth making at least 4 mcm. Ceramic different depth plies are made of zirconium oxide stabilised by yttrium oxide. First ceramic layer, if seen from working surface, features depth of at least 1-2 mcm. Every next ceramic ply features the depth increased by 2-3 mcm Outer surface ceramic layer features depth of 20-30 mcm.EFFECT: higher thermal strength and heat resistance.1 dwg, 1 ex