Abstract
This article presents the fundamentals of the production technology of multi-component composite coatings of a zonal structure designed for the protection of components and appliances against corrosive and erosive wear at elevated and high temperatures. They can be also applied to seal the surfaces of thermally sprayed coatings. In a technological variant of the process, an external ceramic coating containing aluminium and chromium oxides was produced. An aluminium phosphate binder was used as a component of ceramic seal and of the coating. Flow charts of the binder and ceramic coatings fabrication are presented here. The structure and phase composition of selected coatings have been determined and some examples of their application in the domestic power industry have been presented.
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