Slurry Coating of Environmental Barrier Coating (EBC) on Silicon Carbide Based Material

Federica Bezzi; Paride Fabbri; Alida Brentari; Claudio Mingazzini; Emiliano Burresi; Leandro Beaulardi; Sergio Sangiorgi

doi:10.4028/www.scientific.net/AST.66.100

Paper Titles

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Corrosion Resistance of Titanium Aluminide Layers on Two Phase (α+β) Ti6Al4V Titanium Alloy
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Slurry Coating of Environmental Barrier Coating (EBC) on Silicon Carbide Based Material
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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 66Slurry Coating of Environmental Barrier Coating...

Slurry Coating of Environmental Barrier Coating (EBC) on Silicon Carbide Based Material

Abstract:

In order to increase the component lifetime of SiC based materials in combustion environments, environmental barrier coatings (EBCs) based on ceramic oxides are used to improve corrosion resistance of SiC, due to their high chemical stability. In this work, mullite and barium-strontium-aluminosilicate (BSAS) coatings were deposited by slurry dip coating on SiC substrates. Slurries were prepared by suspending commercial powders in water or ethanol, using appropriate dispersants. Substrates were dipped into the slurry and subsequently dried and heat treated at high temperature to promote densification. SEM observations were carried out to investigate the microstructure of the obtained coatings and to evaluate crack formation, porosity and adhesion.

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Periodical:

Advances in Science and Technology (Volume 66)

Pages:

100-105

DOI:

https://doi.org/10.4028/www.scientific.net/AST.66.100

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Online since:

October 2010

Authors:

Federica Bezzi, Paride Fabbri, Alida Brentari, Claudio Mingazzini, Emiliano Burresi, Leandro Beaulardi, Sergio Sangiorgi

Keywords:

BSAS, Dip-Coating, Environmental Barrier Coating (EBC), Mullite, Slurry

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