| Autor: |
Moussaoui, Hamza, Nakajo, Arata, Rinaldi, Giorgio, Hubert, Maxime, Laurencin, Jérôme, Van Herle, Jan |
| Zdroj: |
ECS Transactions; July 2021, Vol. 103 Issue: 1 p997-1009, 13p |
| Abstrakt: |
Microstructural evolution in the electrodes plays an important role in the durability of Solid Oxide Cells (SOCs). The metallic phase in the fuel electrodes made of Nickel and Yttria-Stabilized Zirconia (Ni-YSZ) is not stable in operation as it has a high mobility and a rather low wettability to YSZ. To enable long term durability prediction and improve the anode performance, it is necessary to understand its microstructural evolution under different operating conditions. This contribution presents a 3-D geometrical model based on morphological operations. 3-D microstructures of as reduced and aged electrodes were reconstructed by X-ray nanotomography and used to assess the relevance of the model verification. The low computational time of the morphological model allows generating a large database of numerical microstructures for the study of the impact of Ni evolution on the microstructural properties. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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