Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 1041-1052 |
| Number of pages | 12 |
| Journal | Journal of the European Ceramic Society |
| Volume | 32 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2012 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- Strength
- fuel sells
- sintering
- porosity
- optimization
Cite this
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Optimization of the strength of SOFC anode supports. / Frandsen, H.L. (Corresponding Author); Ramos, T.; Faes, A.; Pihlatie, Mikko; Brodersen, K.
In: Journal of the European Ceramic Society, Vol. 32, No. 5, 2012, p. 1041-1052.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Optimization of the strength of SOFC anode supports
AU - Frandsen, H.L.
AU - Ramos, T.
AU - Faes, A.
AU - Pihlatie, Mikko
AU - Brodersen, K.
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 - Strength
KW - fuel sells
KW - sintering
KW - porosity
KW - optimization
U2 - 10.1016/j.jeurceramsoc.2011.11.015
DO - 10.1016/j.jeurceramsoc.2011.11.015
M3 - Article
VL - 32
SP - 1041
EP - 1052
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
SN - 0955-2219
IS - 5
ER -