Abstract
A simple mechanical damage testing method, combined with Acoustic Emission (AE) monitoring was developed in order to investigate the mechanical performance of solid oxide fuel cells under simulated environments. The damage testing method was applied to ceria electrolyte-supported single cells. The damage process was shown to involve vertical cracking and delamination in the cathode, and vertical cracking in the electrolyte, and the fracture damage was most likely due to chemical expansion-induced stresses. It was demonstrated that the AE method enabled us to detect the above-mentioned damage process and to determine the condition for the onset of the damage in the single cell.
Original language | English |
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Pages (from-to) | 246-250 |
Number of pages | 5 |
Journal | Journal of Testing and Evaluation |
Volume | 34 |
Issue number | 3 |
Publication status | Published - 2006 May 1 |
Keywords
- Acoustic emission
- Ceria-based single cell
- Damage mechanism
- Solid oxide fuel cells
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering