Optimization of the strength of SOFC anode supports

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

View graph of relations

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.
Original languageEnglish
JournalJournal of the European Ceramic Society
Issue number5
Pages (from-to)1041-1052
StatePublished - 2012
CitationsWeb of Science® Times Cited: 28


  • Sintering, Strength, Fuel cells, Porosity, Optimization
Download as:
Download as PDF
Select render style:
Download as HTML
Select render style:
Download as Word
Select render style:

ID: 6447797