Article ID Journal Published Year Pages File Type
1470790 Corrosion Science 2009 6 Pages PDF
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.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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