Article ID Journal Published Year Pages File Type
7746389 Solid State Ionics 2014 5 Pages PDF
Abstract
The depth profiles of secondary ion mass spectrometry (SIMS) have been applied to analyze the distribution of 18O and metal oxide ions precisely at La0.6Sr0.4Co0.2Fe0.8O3 − d/Gd0.1Ce0.9O2 − x (GDC)/Y0.15Zr0.85O2 − y (YSZ) interfaces. 18O concentration peak was identified only under cathodic polarization with a constant current density of 0.071 A cm− 2 at 973 K under 18O2 atmosphere. The 18O peak position was corresponded to the Sr condensed zone where SrZrO3 was formed at the GDC/YSZ interfaces. The SrZrO3 formation and the 18O concentration profile pile-up are correlated to each other.
Related Topics
Physical Sciences and Engineering Chemistry Electrochemistry
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