The Numerical Analysis for a Crack in the Cathode Electrode Surface of Planar SOFC
The crack formation and propagation remain as major issues regarding the mechanical crack behavior of solid oxide fuel cell (SOFC), due to the thermomechanical mismatch and the porous nature of the SOFC components. The SOFC consisting of brittle ceramic materials can be damaged by the cracking due to high-temperature during the manufacturing and operation. The crack generated during the manufacturing were can cause the cell performance degradation during operation. For crack evaluation because the SOFC products the required power density through the stack considering the interconnector is required. The purpose of this study is to investigate the effect of the vertical crack at the cathode electrode, and also the effects of the crack on the interconnect channel position in operation for the crack behavior and stress field.
Jesús Toribio, Vladislav Mantič, Andrés Sáez, M.H. Ferri Aliabadi
C. J. Park et al., "The Numerical Analysis for a Crack in the Cathode Electrode Surface of Planar SOFC", Key Engineering Materials, Vol. 713, pp. 273-276, 2016