Structural features and gas tightness of EB-PVD 1Ce10ScSZ electrolyte films
Research output: Contribution to journal › Article › peer-review
Authors
Colleges, School and Institutes
External organisations
- Institute for Problems of Materials Science National Academy of Sciences in Ukraine
- Forschungszentrum Jülich (FZJ)
- Warsaw University of Technology
- Frantcevych Institute for Problems of Materials Science
- Environmental Earth Science
- Eastern Connecticut State University
- Forschungszentrum Julich GmbH
- Institute of Energy and Climate Research
Abstract
The structure of Ceria doped Scandia Stabilized Zirconia (1Ce10ScSZ) electrolyte film deposited by EB-PVD (Electron Beam-Physical Vapour Deposition) technique on NiO-ZrO 2 substrate was characterized by electron microscopy. The highly porous substrate was densely covered by deposited film without any spallation. The produced electrolyte layer was of a columnar structure with bushes, bundles of a diameter up to 30 um and diverse height. Between the columns, delamination cracks of few microns length were visible. The annealing of zirconia film at 1000 °C resulted in its densification. The columnar grains and delaminating cracks changed their shape into a bit rounded. High magnification studies revealed nanopores 5-60 nm formed along the boundaries of the columnar grains during annealing. High-quality contacts between the electrolyte film and anode substrate ensured good conductivity of the electrolyte film and high efficiency of SOFC.
Details
Original language | English |
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Pages (from-to) | 170-179 |
Number of pages | 10 |
Journal | Materials Science - Poland |
Volume | 30 |
Issue number | 3 |
Publication status | Published - 1 Sep 2012 |
Keywords
- FIB, Interface, Microstructure characterization, SOFC