Evaluation of fracture behavior of (CeO 2) 1-x(SmO 1.5) x based solid oxide fuel cell laminates

Kazuhisa Sato; Toshiyuki Hashida; Keiji Yashiro; Hiroo Yugami; Tatsuya Kawada; Junichiro Mizusaki

doi:10.2497/jjspm.52.836

Evaluation of fracture behavior of (CeO ₂) _1-x(SmO _1.5) _x based solid oxide fuel cell laminates

Translated title of the contribution: Evaluation of fracture behavior of (CeO ₂) _1-x(SmO _1.5) _x based solid oxide fuel cell laminates

Kazuhisa Sato, Toshiyuki Hashida, Keiji Yashiro, Hiroo Yugami, Tatsuya Kawada, Junichiro Mizusaki

Research output: Contribution to journal › Article › peer-review

Abstract

A simple fracture testing method, which was combined with acoustic-emission (AE) monitoring was developed in order to investigate the mechanical performance of solid oxide fuel cells (SOFCs) under simulated environments. The fracture testing method was applied to ceria electrolyte-supported single cells. The fracture damage process was shown to involve vertical cracking and delamination in the cathode, and vertical cracking in the electrolyte, and the fracture damages were most likely due to the chemical expansion induced stresses. It was demonstrated that the AE method enabled us to detect the above-mentioned fracture process and determine the condition for the onset of the fracture damage in the single cell.

Translated title of the contribution	Evaluation of fracture behavior of (CeO ₂) _1-x(SmO _1.5) _x based solid oxide fuel cell laminates
Original language	Japanese
Pages (from-to)	836-839
Number of pages	4
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	52
Issue number	11
DOIs	https://doi.org/10.2497/jjspm.52.836
Publication status	Published - 2005 Nov

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

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10.2497/jjspm.52.836

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title = "Evaluation of fracture behavior of (CeO 2) 1-x(SmO 1.5) x based solid oxide fuel cell laminates",

abstract = "A simple fracture testing method, which was combined with acoustic-emission (AE) monitoring was developed in order to investigate the mechanical performance of solid oxide fuel cells (SOFCs) under simulated environments. The fracture testing method was applied to ceria electrolyte-supported single cells. The fracture damage process was shown to involve vertical cracking and delamination in the cathode, and vertical cracking in the electrolyte, and the fracture damages were most likely due to the chemical expansion induced stresses. It was demonstrated that the AE method enabled us to detect the above-mentioned fracture process and determine the condition for the onset of the fracture damage in the single cell.",

keywords = "Acoustic-emission method, Ceria-based single cell, Fracture process, Simulated environment, Solid oxide fuel cells",

author = "Kazuhisa Sato and Toshiyuki Hashida and Keiji Yashiro and Hiroo Yugami and Tatsuya Kawada and Junichiro Mizusaki",

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T1 - Evaluation of fracture behavior of (CeO 2) 1-x(SmO 1.5) x based solid oxide fuel cell laminates

AU - Sato, Kazuhisa

AU - Hashida, Toshiyuki

AU - Yashiro, Keiji

AU - Yugami, Hiroo

AU - Kawada, Tatsuya

AU - Mizusaki, Junichiro

PY - 2005/11

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AB - A simple fracture testing method, which was combined with acoustic-emission (AE) monitoring was developed in order to investigate the mechanical performance of solid oxide fuel cells (SOFCs) under simulated environments. The fracture testing method was applied to ceria electrolyte-supported single cells. The fracture damage process was shown to involve vertical cracking and delamination in the cathode, and vertical cracking in the electrolyte, and the fracture damages were most likely due to the chemical expansion induced stresses. It was demonstrated that the AE method enabled us to detect the above-mentioned fracture process and determine the condition for the onset of the fracture damage in the single cell.

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KW - Ceria-based single cell

KW - Fracture process

KW - Simulated environment

KW - Solid oxide fuel cells

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Evaluation of fracture behavior of (CeO ₂) _1-x(SmO _1.5) _x based solid oxide fuel cell laminates

Abstract

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