| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Jørgensen, Peter Stanley
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2024Elucidating Nickel Oxide Reduction in a Ni-YSZ Solid Oxide Cell via in-situ X-ray Nano Holo-Tomographycitations
- 2024Elucidating Nickel Oxide Reduction in a Ni-YSZ Solid Oxide Cell via in-situ X-ray Nano Holo-Tomographycitations
- 2017A Physically-Based Equivalent Circuit Model for the Impedance of a LiFePO 4 /Graphite 26650 Cylindrical Cellcitations
- 2017A Physically-Based Equivalent Circuit Model for the Impedance of a LiFePO4/Graphite 26650 Cylindrical Cellcitations
- 2017Enhanced densification of thin tape cast Ceria-Gadolinium Oxide (CGO) layers by rheological optimization of slurriescitations
- 2016Electron microscopy investigations of changes in morphology and conductivity of LiFePO4/C electrodescitations
- 2016Relaxation of stresses during reduction of anode supported SOFCs
- 2015Dictionary Based Segmentation in Volumescitations
- 2015Computation of Effective Steady-State Creep of Porous Ni–YSZ Composites with Reconstructed Microstructurescitations
- 2014Degradation Studies on LiFePO 4 cathode
- 2014On the accuracy of triple phase boundary lengths calculated from tomographic image datacitations
- 2014Degradation Studies on LiFePO4 cathode
- 2014In situ characterization of delamination and crack growth of a CGO–LSM multi-layer ceramic sample investigated by X-ray tomographic microscopycitations
- 2014Micromechanical Modeling of Solid Oxide Fuel Cell Anode Supports based on Three-dimensional Reconstructions
- 2013Transmission Electron Microscopy Specimen Preparation Method for Multiphase Porous Functional Ceramicscitations
- 2013Transmission Electron Microscopy Specimen Preparation Method for Multiphase Porous Functional Ceramicscitations
- 2012Performance-Microstructure Relations in Ni/CGO Infiltrated Nb-doped SrTiO3 SOFC Anodescitations
- 2012Performance-Microstructure Relations in Ni/CGO Infiltrated Nb-doped SrTiO3 SOFC Anodescitations
- 2012Microstructural evolution of nanosized Ce 0.8 Gd 0.2 O 1.9 /Ni infiltrate in a Zr 0.84 Y 0.16 O 1.92 -Sr 0.94 Ti 0.9 Nb 0.1 O 3-δ based SOFC anode under electrochemical evaluation
- 2012Durable and Robust Solid Oxide Fuel Cells
- 2012Microstructural evolution of nanosized Ce0.8Gd0.2O1.9/Ni infiltrate in a Zr0.84Y0.16O1.92-Sr0.94Ti0.9Nb0.1O3-δ based SOFC anode under electrochemical evaluation
- 2010Quantitative data analysis methods for 3D microstructure characterization of Solid Oxide Cells
- 2010Quantitative data analysis methods for 3D microstructure characterization of Solid Oxide Cells
Places of action
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document
Micromechanical Modeling of Solid Oxide Fuel Cell Anode Supports based on Three-dimensional Reconstructions
Abstract
The efficiency and lifetime of solid oxide fuel cells (SOFCs) is compromised by mechanical failure of cells in the system. Improving the mechanical reliability is a major step in ensuring feasibility of the technology. To quantify the stress in a cell, mechanical properties of the different layers need to be accurately known. Since the mechanical properties are heavily dependent on the microstructures of the materials, it is highly advantageous to understand the impact of microstructures and to be able to determine accurate effective mechanical properties for cell or stack scale analyses. The purpose of this work is to provide such a link. State-of-the-art SOFCs are supported by a porous layer of Ni-3YSZ which has a complex microstructure and a drastic difference in behaviors between their phases. This work investigates the microscopic stress distribution and macroscopic creep rate of porous Ni-3YSZ in the operating temperature through numerical micromechanical modeling. Three-dimensional microstructures of Ni-3YSZ anode supports are reconstructed from a two-dimensional image stack obtained via focused ion beam tomography. Time-dependent stress distributions in the microscopic scale are computed by the finite element method. The macroscopic creep response of the porous anode support is determined based on homogenization theory. It is shown that micromechanical modeling provides an effective tool to study the effect of microstructures on the macroscopic properties.