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Verfasst von:Rüger, Bernd [VerfasserIn]   i
 Carraro, Thomas [VerfasserIn]   i
Titel:3D electrode microstructure reconstruction and modelling
Verf.angabe:Bernd Rüger, Jochen Joos, André Weber, Thomas Carraro, Ellen Ivers-Tiffée
Umfang:10 S.
Fussnoten:Gesehen am 11.03.2019
Titel Quelle:Enthalten in: Electrochemical Society: ECS transactions
Jahr Quelle:2009
Band/Heft Quelle:25(2009), 2, S. 1211-1220
ISSN Quelle:1938-6737
Abstract:Polarization losses within the electrodes are determined both by material composition and microstructure. Analyzing and modelling of electrode-microstructure can help to understand and improve electrodes. In this initial study the use of a dual-beam focused ion beam/scanning electron microscope (FIB/SEM) for the reconstruction of a high performance LSCF-cathode will be illustrated. Opportunities that arise from this technology for microstructure modelling and possible sources of error will be discussed. From the obtained reconstruction data the calculation of microstructural parameters like surface area, volume/porosity fraction or tortuosity is possible. Such parameters can be used to calculate cathode performance via microstructure models found in literature [1-4]. However, it would be desirable to use the reconstructed microstructure directly in a model in order to investigate the interaction of microstructure and performance more accurately. A three-dimensional (3D) finite element method (FEM) model [5] is presented that allows the analysis and prediction of cathode performance. The model has already been validated, and we will show how to overcome simplifications concerning the microstructure by an extension of the model enabling a direct use of 3D FIB/SEM-data.
DOI:doi:10.1149/1.3205650
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Resolving-System: http://dx.doi.org/10.1149/1.3205650
 Verlag: http://ecst.ecsdl.org/content/25/2/1211
 DOI: https://doi.org/10.1149/1.3205650
Datenträger:Online-Ressource
Sprache:eng
K10plus-PPN:1588541223
Verknüpfungen:→ Sammelwerk

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