FIELD: metallurgy.
SUBSTANCE: invention relates to powder metallurgy and a method of producing a thick-layer ceramic heat-insulating coating on a metal substrate, which can be used for creation of thermal protection systems operating under conditions of aggressive gas medium flows and considerable thermal stresses, for example, parts and assemblies of rocket equipment. Method comprises preliminary preparation of metal substrate, which includes attachment of metal wire spirals on surface of substrate by means of high-temperature solder, cutting of upper ridges of spirals, straightening of formed "whiskers" in direction perpendicular to surface of substrate, application of sublayer and creation of porous ceramics on the surface of heat protective layer.
EFFECT: invention provides high thermal stability and durability of ceramic heat-insulating coatings with thickness of more than 3 mm on metal substrates.
1 cl, 2 dwg, 1 ex
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