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Steffen Sønderby, Petru Lunca Popa, Jun Lu, Bjarke Holl Christensen, Klaus Pagh Almtoft, Lars Pleth Nielsen and Per Eklund Strontium Diffusion in Magnetron Sputtered Gadolinia-Doped Ceria Thin Film Barrier Coatings for Solid Oxide Fuel Cells Advanced Energy Materials 3

Version of Record online: 10 APR 2013 | DOI: 10.1002/aenm.201300003

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Strontium diffusion in magnetron sputtered gadolinia-doped ceria thin film is studied in a model system by X-ray diffraction and electron microscopy. The study shows that diffusion takes place along column boundaries and yields an in-depth understanding of the Sr diffusion mechanism. This study also demonstrates how to prepare efficient diffusion barriers for solid oxide fuel cells.

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