FIELD: chemistry.
SUBSTANCE: invention relates to application of coatings for protection against oxidation of components from thermostructured carbon-containing composite materials. In order to obtain self-restoring layer on component from composite material, on component applied is composition, which contains suspension of colloid silicon dioxide, boron or boron compound in form of powder, silicon carbide in form of powder, silicon in form of powder and at least one super-heat-resistant oxide: Y2O3, HiO2, Al2O3, ZrO2. Composition is applied on component in form of successive layers with intermediate drying with further thermal processing for surface vitrification at temperature 600-1000°C.
EFFECT: obtaining self-restoring coating for effective protection against oxidation at temperatures above 1450°C.
18 cl, 1 tbl, 5 dwg
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