FIELD: mechanical engineering; manufacture of heat-resistant parts used in units for application of coats or in gas turbines.
SUBSTANCE: working surface of part is coated with alternating layers of heat-resistant and high-temperature cermet material which are just layers of refractory oxides of metals separated by compensating layers of ductile metal. Compensating layers are made from the same metals whose oxides form the base of refractory cermet layers. Composition of components is so selected that the thermal extension coefficient of inner layer differs from thermal extension coefficient of metal to be coated by no more than 15%.
EFFECT: enhanced resistance of working surfaces of parts liable to impact thermal action of gas jet.
2 cl
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