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  2. School of Engineering
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dc.contributor.authorNeumann, Matthias-
dc.contributor.authorStaněk, Jakub-
dc.contributor.authorPecho, Omar M.-
dc.contributor.authorHolzer, Lorenz-
dc.contributor.authorBeneš, Viktor-
dc.contributor.authorSchmidt, Volker-
dc.date.accessioned2018-01-25T12:37:38Z-
dc.date.available2018-01-25T12:37:38Z-
dc.date.issued2016-06-01-
dc.identifier.issn0927-0256de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/2209-
dc.description.abstractA parametric stochastic 3D model for the description of complex three-phase microstructures is developed. Such materials occur for example in anodes of solid oxide fuel cells (SOFC) which consist of pores, nickel (Ni) and yttria-stabilized zirconia (YSZ). The model is constructed using tools from stochastic geometry. More precisely, we model the backbones of the three phases by a certain class of random geometric graphs called beta-skeletons. This allows us to reproduce complete connectivity of all three phases as observed in experimental image data of a pristine Ni-YSZ anode as well as the prediction of volume fractions by model parameters. Finally a slightly generalized version of this model enables a good fit to experimental image data with respect to transport relevant microstructure characteristics and the length of triple phase boundary. Model validation is performed by comparing effective transport properties from finite element (FE) simulations based on 3D-data from the stochastic model and from tomography of real Ni-YSZ anodes. Moreover, the virtual, but realistic Ni-YSZ microstructures can be used for investigating the quantitative influence of microstructure characteristics on various physical properties and consequently on the performance of the anode material.de_CH
dc.language.isoende_CH
dc.publisherElsevierde_CH
dc.relation.ispartofComputational Materials Sciencede_CH
dc.rightsLicence according to publishing contractde_CH
dc.subjectMapde_CH
dc.subject.ddc620.11: Werkstoffede_CH
dc.subject.ddc621.3: Elektro-, Kommunikations-, Steuerungs- und Regelungstechnikde_CH
dc.titleStochastic 3D modeling of complex three-phase microstructures in SOFC-electrodes with completely connected phasesde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitute of Computational Physics (ICP)de_CH
dc.identifier.doi10.1016/j.commatsci.2016.03.013de_CH
zhaw.funding.euNode_CH
zhaw.originated.zhawYesde_CH
zhaw.pages.end364de_CH
zhaw.pages.start353de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume118de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
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Neumann, M., Staněk, J., Pecho, O. M., Holzer, L., Beneš, V., & Schmidt, V. (2016). Stochastic 3D modeling of complex three-phase microstructures in SOFC-electrodes with completely connected phases. Computational Materials Science, 118, 353–364. https://doi.org/10.1016/j.commatsci.2016.03.013
Neumann, M. et al. (2016) ‘Stochastic 3D modeling of complex three-phase microstructures in SOFC-electrodes with completely connected phases’, Computational Materials Science, 118, pp. 353–364. Available at: https://doi.org/10.1016/j.commatsci.2016.03.013.
M. Neumann, J. Staněk, O. M. Pecho, L. Holzer, V. Beneš, and V. Schmidt, “Stochastic 3D modeling of complex three-phase microstructures in SOFC-electrodes with completely connected phases,” Computational Materials Science, vol. 118, pp. 353–364, Jun. 2016, doi: 10.1016/j.commatsci.2016.03.013.
NEUMANN, Matthias, Jakub STANĚK, Omar M. PECHO, Lorenz HOLZER, Viktor BENEŠ und Volker SCHMIDT, 2016. Stochastic 3D modeling of complex three-phase microstructures in SOFC-electrodes with completely connected phases. Computational Materials Science. 1 Juni 2016. Bd. 118, S. 353–364. DOI 10.1016/j.commatsci.2016.03.013
Neumann, Matthias, Jakub Staněk, Omar M. Pecho, Lorenz Holzer, Viktor Beneš, and Volker Schmidt. 2016. “Stochastic 3D Modeling of Complex Three-Phase Microstructures in SOFC-Electrodes with Completely Connected Phases.” Computational Materials Science 118 (June): 353–64. https://doi.org/10.1016/j.commatsci.2016.03.013.
Neumann, Matthias, et al. “Stochastic 3D Modeling of Complex Three-Phase Microstructures in SOFC-Electrodes with Completely Connected Phases.” Computational Materials Science, vol. 118, June 2016, pp. 353–64, https://doi.org/10.1016/j.commatsci.2016.03.013.


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