The thermal evaporation process can also coat a very thick, 1mm, layer of heat-resistant materials, such as MCrAIY—a metal, chromium, aluminum, and yttrium alloys, on jet engine parts.
Aluminum film is produced on glass, H13 steel, plastic and pure cu substrate by resistance heating vacuum evaporation, and the adhesive power ofaluminum film is determined and analyzed.
The evaporation efficiency has a direct effect on manufacturing energy consumption and cost ofaluminum oxide. The scale formation is main factor to influence improvement ofevaporation efficiency.