Morphology and structure features of heat-resistant reactive for protection of heat-resistant nickel alloys

Denisova V.S., Kurshev E.V., Lonskii S.L., Vlasova O.V.
UDC
66.017
DOI
10.18577/2307-6046-2020-0-45-54-61
Article PDF (Russian) (632.55 KB)
How to cite
Denisova V.S., Kurshev E.V., Lonskii S.L., Vlasova O.V. Morphology and structure features of heat-resistant reactive for protection of heat-resistant nickel alloys // Proceedings of VIAM. 2020. No. 4-5. DOI: 10.18577/2307-6046-2020-0-45-54-61. URL: https://test.viam.ru/en/journal/2020/4-5/6
Keywords
glass, silicon tetraboride, structure, nickel alloys, scanning electron microscopy, heat resistance.
Abstract

The surface structure of reaction cured coatings based on a composition of refractory glass in system BaO–Al2O3–SiO2 and silicon tetraboride was studied using atomic force microscopy and scanning electron microscopy depending on the conditions of heat treatment of coatings. Non-significant roughness of the coatings was revealed, the level of which reduces as the result of firing in oxidizing atmosphere. The key structural feature of the reaction cured coatings is the preservation of non-oxidized particles of silicon tetraboride in the glass matrix volume what determines the high level of reaction cured coatings properties.

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