Rapid, cool sintering of wet processed yttria-stabilized zirconia ceramic electrolyte thin films

Here we report a photonic annealing process for yttria-stabilized zirconia films, which are one of the most well-known solid-state electrolytes for solid oxide fuel cells (SOFCs). Precursor films were coated using a wet-chemical method with a simple metal-organic precursor solution and directly anne...

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Bibliographic Details
Published in:Scientific reports 2017-09, Vol.7 (1), p.12458-10, Article 12458
Main Authors: Park, Jun-Sik, Kim, Dug-Joong, Chung, Wan-Ho, Lim, Yonghyun, Kim, Hak-Sung, Kim, Young-Beom
Format: Article
Language:English
Subjects:
639/301/299/893
639/4077/893
Annealing
Electrolytes
Furnaces
Humanities and Social Sciences
Irradiation
multidisciplinary
Oxides
Radiation
Science
Science (multidisciplinary)
Solid oxide fuel cells
Thin films
Xenon
Zirconia
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Summary:Here we report a photonic annealing process for yttria-stabilized zirconia films, which are one of the most well-known solid-state electrolytes for solid oxide fuel cells (SOFCs). Precursor films were coated using a wet-chemical method with a simple metal-organic precursor solution and directly annealed at standard pressure and temperature by two cycles of xenon flash lamp irradiation. The residual organics were almost completely decomposed in the first pre-annealing step, and the fluorite crystalline phases and good ionic conductivity were developed during the second annealing step. These films showed properties comparable to those of thermally annealed films. This process is much faster than conventional annealing processes (e.g. halogen furnaces); a few seconds compared to tens of hours, respectively. The significance of this work includes the treatment of solid-state electrolyte oxides for SOFCs and the demonstration of the feasibility of other oxide components for solid-state energy devices.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-017-12438-9