HIGH-TEMPERATURE COATING

FIELD: protective coatings. ^ SUBSTANCE: invention is related to aircraft industry and intended to use for protection of nonmetallic materials based on silicon carbide matrix and carbon fiber filler against oxidation. High-temperature coating is composed of, wt %: silicon 4-6, boron 2-4m hafnium oxi...

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Bibliographische Detailangaben
Hauptverfasser:	ISAEVA N.V, ERMAKOVA G.V, MAKSIMOV V.I, SOLNTSEV S.S
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	FIELD: protective coatings. ^ SUBSTANCE: invention is related to aircraft industry and intended to use for protection of nonmetallic materials based on silicon carbide matrix and carbon fiber filler against oxidation. High-temperature coating is composed of, wt %: silicon 4-6, boron 2-4m hafnium oxide 60-65, hafnium boride 6-10 and, additionally, hafnium silicides 7-10 and silicon boride 2-4. Resulting carbon-silicon composites are resistant to temperature 2000°C. ^ EFFECT: increased temperature resistance, improved environmental safety and fire and blast resistance. ^ 2 tbl