Electrochemical blackening of yttria-stabilized zirconia : morphological instability of the moving reaction front
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Abstract
Electrochemical reduction was performed on both polycrystals of calcia-stabilized zirconia (CSY) and single crystals of yttria-stabilized zirconia (YSZ) at 500°C. A glass-encapsulation was used to prevent access of molecular oxygen from the gas phase and to realize a virtually two-dimensional geometry for the reacting crystal. The resulting blackening process which occurs by the advancement of a morphologically unstable reaction front was observed in-situ in a heating-stage by the use of an optical microscope.Link to publications or other datasets
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Zuerst erschienen in: Solid State Ionics 116 (1999) 181-195