Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1470790 | Corrosion Science | 2009 | 6 Pages |
Abstract
Thermal Barrier Coatings (TBC) of 8% Yttria-Stabilized Zirconia (8YSZ) were deposited on AISI-304 substrates via r.f magnetron sputtering. A buffer layer of alumina, Al2O3, was deposited to improve the adhesion of the YSZ monolayer to the substrate. The influence of the Al2O3/8YSZ coating on the electrochemical conductance evolution, CtT, was examined by Electrochemical Impedance Spectroscopy measurements when the steels are exposed to temperatures of 700 and 500 °C for 2, 4, and 6 h. Results indicated that CtT diminished three orders of magnitude, in samples coated with Al2O3/8YSZ with respect to uncoated steel.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
C. Amaya, W. Aperador, J.C. Caicedo, F.J. Espinoza-Beltrán, J. Muñoz-Saldaña, G. Zambrano, P. Prieto,