<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The structure of Ceria doped Scandia Stabilized Zirconia (1Ce10ScSZ) electrolyte film deposited by EB-PVD (Electron Beam-Physical Vapour Deposition) technique on NiO-ZrO2 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 μm 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.</p></abstract>

The structure of Ceria doped Scandia Stabilized Zirconia (1Ce10ScSZ) electrolyte film deposited by EB-PVD (Electron Beam-Physical Vapour Deposition) technique on NiO-ZrO2 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 μm 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.

Structural features and gas tightness of EB-PVD 1Ce10ScSZ electrolyte films

Warsaw University of Technology, Woloska 141, 02-507, Warsaw, Poland

Frantcevych Institute for Problems of Materials Science, Kiev, Ukraine

Environmental Earth Science, Eastern Connecticut State University, Science Building, 83 Windham Rd., Willimantic, CT, 06226, USA

Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research, Project Fuel Cells, Leo-Brandt-Str., 52425, Jlich, Germany

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Structural features and gas tightness of EB-PVD 1Ce10ScSZ electrolyte films"}

The structure of Ceria doped Scandia Stabilized Zirconia (1Ce10ScSZ) electrolyte film deposited by EB-PVD (Electron Beam-Physical Vapour Deposition) technique...

Structural features and gas tightness of EB-PVD 1Ce10ScSZ electrolyte films

Published Online: Sep 14, 2012

Page range: 170 - 179

DOI: https://doi.org/10.2478/s13536-012-0025-0

Keywords
SOFC, interface, FIB, microstructure characterization

© 2012 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Structural features and gas tightness of EB-PVD 1Ce10ScSZ electrolyte films

Published Online: Sep 14, 2012

Page range: 170 - 179

DOI: https://doi.org/10.2478/s13536-012-0025-0

KeywordsSOFC, interface, FIB, microstructure characterization

© 2012 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
SOFC, interface, FIB, microstructure characterization