### Abstract

For the numerical simulation of oxygen potential distributions in Solid Oxide Fuel Cell (SOFC), the time-evolution of the anode microstructure is reflected in the macroscopic electrical conductivities and the amount of triple-phase boundaries. Once the oxygen potential distributions are determined, the time-variation of the reduction-induced strains due to nonstoichiometry of oxide materials is calculated along with the thermal strains. These strains cause the macroscopic stresses in mutually constrained components. Thus, the capability of the proposed method is demonstrated in characterizing the aging degradation of the macroscopic electro-chemo-mechanical behavior of SOFC that is caused by the Nisintering in cermet microstructures during long-period control.

Original language | English |
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Title of host publication | COUPLED PROBLEMS 2015 - Proceedings of the 6th International Conference on Coupled Problems in Science and Engineering |

Publisher | International Center for Numerical Methods in Engineering |

Pages | 614-624 |

Number of pages | 11 |

ISBN (Electronic) | 9788494392832 |

Publication status | Published - 2015 Jan 1 |

Externally published | Yes |

Event | 6th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2015 - Venice, Italy Duration: 2015 May 18 → 2015 May 20 |

### Other

Other | 6th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2015 |
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Country | Italy |

City | Venice |

Period | 15/5/18 → 15/5/20 |

### Fingerprint

### Keywords

- Microstructure
- Potential Simulation
- Solid Oxide Fuel Cells
- Stress Analysis

### ASJC Scopus subject areas

- Computational Mathematics
- Engineering(all)
- Applied Mathematics

### Cite this

*COUPLED PROBLEMS 2015 - Proceedings of the 6th International Conference on Coupled Problems in Science and Engineering*(pp. 614-624). International Center for Numerical Methods in Engineering.

**An electro-chemo-mechanical analysis of solid oxide fuel cell considering evolution of microstructure in porous electrode using phase-field method.** / Muramatsu, Mayu; Takase, S.; Yashiro, K.; Kawada, T.; Terada, K.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*COUPLED PROBLEMS 2015 - Proceedings of the 6th International Conference on Coupled Problems in Science and Engineering.*International Center for Numerical Methods in Engineering, pp. 614-624, 6th International Conference on Computational Methods for Coupled Problems in Science and Engineering, COUPLED PROBLEMS 2015, Venice, Italy, 15/5/18.

}

TY - GEN

T1 - An electro-chemo-mechanical analysis of solid oxide fuel cell considering evolution of microstructure in porous electrode using phase-field method

AU - Muramatsu, Mayu

AU - Takase, S.

AU - Yashiro, K.

AU - Kawada, T.

AU - Terada, K.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - For the numerical simulation of oxygen potential distributions in Solid Oxide Fuel Cell (SOFC), the time-evolution of the anode microstructure is reflected in the macroscopic electrical conductivities and the amount of triple-phase boundaries. Once the oxygen potential distributions are determined, the time-variation of the reduction-induced strains due to nonstoichiometry of oxide materials is calculated along with the thermal strains. These strains cause the macroscopic stresses in mutually constrained components. Thus, the capability of the proposed method is demonstrated in characterizing the aging degradation of the macroscopic electro-chemo-mechanical behavior of SOFC that is caused by the Nisintering in cermet microstructures during long-period control.

AB - For the numerical simulation of oxygen potential distributions in Solid Oxide Fuel Cell (SOFC), the time-evolution of the anode microstructure is reflected in the macroscopic electrical conductivities and the amount of triple-phase boundaries. Once the oxygen potential distributions are determined, the time-variation of the reduction-induced strains due to nonstoichiometry of oxide materials is calculated along with the thermal strains. These strains cause the macroscopic stresses in mutually constrained components. Thus, the capability of the proposed method is demonstrated in characterizing the aging degradation of the macroscopic electro-chemo-mechanical behavior of SOFC that is caused by the Nisintering in cermet microstructures during long-period control.

KW - Microstructure

KW - Potential Simulation

KW - Solid Oxide Fuel Cells

KW - Stress Analysis

UR - http://www.scopus.com/inward/record.url?scp=84938693057&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84938693057&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84938693057

SP - 614

EP - 624

BT - COUPLED PROBLEMS 2015 - Proceedings of the 6th International Conference on Coupled Problems in Science and Engineering

PB - International Center for Numerical Methods in Engineering

ER -