Optimization of the strength of SOFC anode supports

Publication: Research - peer-reviewJournal article – Annual report year: 2011

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Optimization of the strength of SOFC anode supports. / Frandsen, Henrik Lund; Ramos, Tania; Faes, A.; Pihlatie, M.; Brodersen, Karen.

In: European Ceramic Society. Journal, Vol. 32, No. 5, 2012, p. 1041-1052.

Publication: Research - peer-reviewJournal article – Annual report year: 2011

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Frandsen, Henrik Lund; Ramos, Tania; Faes, A.; Pihlatie, M.; Brodersen, Karen / Optimization of the strength of SOFC anode supports.

In: European Ceramic Society. Journal, Vol. 32, No. 5, 2012, p. 1041-1052.

Publication: Research - peer-reviewJournal article – Annual report year: 2011

Bibtex

@article{bb1b90728c5e44f0a06da48b355557c5,
title = "Optimization of the strength of SOFC anode supports",
keywords = "Sintering, Strength, Fuel cells, Porosity, Optimization",
author = "Frandsen, {Henrik Lund} and Tania Ramos and A. Faes and M. Pihlatie and Karen Brodersen",
year = "2012",
doi = "10.1016/j.jeurceramsoc.2011.11.015",
volume = "32",
pages = "1041--1052",
journal = "European Ceramic Society. Journal",
issn = "0955-2219",
publisher = "Elsevier Ltd.",
number = "5",

}

RIS

TY - JOUR

T1 - Optimization of the strength of SOFC anode supports

AU - Frandsen,Henrik Lund

AU - Ramos,Tania

AU - Faes,A.

AU - Pihlatie,M.

AU - Brodersen,Karen

PY - 2012

Y1 - 2012

N2 - During operation solid oxide fuel cells are stressed by temperature gradients and various internal and external mechanical loads, which must be withstood. This work deals with the optimization of the strength of as-sintered anode supported half-cells by imposing changes to production parameters, such as powder milling and sintering temperature. The strength was measured with the ball-on-ring method, and analyzed with a large displacement finite element model. Weibull statistics were used to describe the distribution of strengths. The influence on the Weibull strength of the many different processing parameters was found to be quantifiable in terms of cell porosity to a large extent. The results were validated with an independent set of measurements of strength and stiffness by uniaxial tension and the impulse excitation technique, respectively. For application of the finding in relation to the SOFC technology a mathematical frame to determine the optimal porosity of a SOFC system is presented.

AB - During operation solid oxide fuel cells are stressed by temperature gradients and various internal and external mechanical loads, which must be withstood. This work deals with the optimization of the strength of as-sintered anode supported half-cells by imposing changes to production parameters, such as powder milling and sintering temperature. The strength was measured with the ball-on-ring method, and analyzed with a large displacement finite element model. Weibull statistics were used to describe the distribution of strengths. The influence on the Weibull strength of the many different processing parameters was found to be quantifiable in terms of cell porosity to a large extent. The results were validated with an independent set of measurements of strength and stiffness by uniaxial tension and the impulse excitation technique, respectively. For application of the finding in relation to the SOFC technology a mathematical frame to determine the optimal porosity of a SOFC system is presented.

KW - Sintering

KW - Strength

KW - Fuel cells

KW - Porosity

KW - Optimization

U2 - 10.1016/j.jeurceramsoc.2011.11.015

DO - 10.1016/j.jeurceramsoc.2011.11.015

M3 - Journal article

VL - 32

SP - 1041

EP - 1052

JO - European Ceramic Society. Journal

T2 - European Ceramic Society. Journal

JF - European Ceramic Society. Journal

SN - 0955-2219

IS - 5

ER -