Journal Published Online: 18 January 2006
Volume 34, Issue 3

Tracking the Onset of Damage Mechanism in Ceria-based Solid Oxide Fuel Cells under Simulated Operating Conditions

CODEN: JTEVAB

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 de lamination 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.

Author Information

Sato, K
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Japan
Omura, H
Fracture and Reliability Research Institute, Graduate School of Engineering, Tohoku University Aza-Aoba, Sendai, Japan
Hashida, T
Fracture and Reliability Research Institute, Graduate School of Engineering, Tohoku University Aza-Aoba, Sendai, Japan
Yashiro, K
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Japan
Yugami, H
Graduate School of Engineering, Tohoku University, Sendai, Japan
Kawada, T
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Japan
Mizusaki, J
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Japan
Pages: 5
Price: $25.00
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Details
Stock #: JTE12707
ISSN: 0090-3973
DOI: 10.1520/JTE12707