The behaviour of FeCrAl alloy with a silica-rich ceramic coating SiO2–Al2O3 under high temperature oxidation conditions and thermal shocks
作者： J.G. Chęcmanowski , B. Szczygieł , W. Tylus , I. Szczygieł
DOI: 10.1016/J.MATCHEMPHYS.2010.10.046
关键词:
摘要: Abstract Single- and five-layer protective SiO 2 –Al O 3 coatings were deposited on an FeCrAl alloy. TEOS TBA used as precursors in a silica-rich sol. The improve the alloy's resistance to high-temperature oxidation thermal shocks (the protection effectiveness is high 80%). As result of diffusion from core during annealing at 1200 °C, composition sample's surface layer changes whereby latter becomes enriched aluminium. forming aluminosilicates situated between mullite sillimanite (XPS measurements) they are characterized by small degree crystallinity (XRD).
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