Paper Title:
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.

  Info
Periodical
Edited by
Pietro VINCENZINI and Ghislain MONTAVON
Pages
100-105
DOI
10.4028/www.scientific.net/AST.66.100
Citation
F. Bezzi, P. Fabbri, A. Brentari, C. Mingazzini, E. Burresi, L. Beaulardi, S. Sangiorgi, "Slurry Coating of Environmental Barrier Coating (EBC) on Silicon Carbide Based Material", Advances in Science and Technology, Vol. 66, pp. 100-105, 2010
Online since
October 2010
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