Abstract
Scattered and linked microcracks in the electrolyte layer have been analysed in detail in anode supported planar solid oxide fuel cells. The empirical model established allowed critical characteristics of scattered and localised microcracking to be determined using electrolyte microstructural parameters. The model was verified with experimental data obtained for electron beam deposited scandia-stabilised zirconia electrolytes. Suitable annealing and deposition temperatures during fuel cell fabrication could be predicted from the critical temperature difference below which microcracking does not occur.
Original language | English |
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Article number | 227701 |
Number of pages | 11 |
Journal | Journal of Power Sources |
Volume | 450 |
Early online date | 29 Jan 2020 |
DOIs | |
Publication status | Published - 29 Feb 2020 |
Keywords
- Scandia-stabilised zirconia
- Solid oxide fuel cell
- Electrolyte
- Thermal expansion
- Microcracking
- Residual stress
ASJC Scopus subject areas
- Ceramics and Composites
- Energy Engineering and Power Technology