GAS-TIGHT EROSION-RESISTANT ALUMINIUM OXIDE COATING SYNTHESIZED BY ATOMIC LAYER DEPOSITION
Scanning electron microscopy, atomic force scanning microscopy, Raman spectroscopy, and X-ray diffractometry were used to study a gas-tight erosion-resistant aluminum oxide coating before and after contact with a high-temperature reducing gas medium. It has been found that these coatings with a thickness of 180 nm to 300 nm, obtained by atomic layer deposition, did not change after contact for 4500 s at a temperature of (950±50) K with a reducing gas medium. This circumstance makes it possible to use them to protect surfaces that corrode upon contact with high-temperature gas flows.