GLASS COATING Russian patent published in 2018 - IPC C04B41/87 

FIELD: chemistry.

SUBSTANCE: invention relates to the silicates technology, namely to glass coating compositions for articles made of ceramics and metals. The coating contains, wt %: SiO₂ 20.0-30.0; Al₂O₃ 10.0-20.0; B₂O₃ 4.0-6.0; ZrO₂ 31.0-34.5; CaO 2.0-6.0; Na₂O 2.0-3.5; HfO₂ 13.0-15.0; CuO 1.0-2.0. Raw materials in the form of fine powders are mixed, the mixture is applied to the surface of ceramic or metal products in a stream of low-temperature plasma.

EFFECT: high heat resistance of the coating.

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