| 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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Chen, Ming
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2024A numerical investigation of nitridation in solid oxide fuel cell stacks operated with ammoniacitations
- 2022Planar proton-conducting ceramic cells for hydrogen extractioncitations
- 2021Ni migration in solid oxide cell electrodes: Review and revised hypothesiscitations
- 2020Review of Ni migration in SOC electrodes
- 2019Deposition and Electrical and Structural Properties of La0.6Sr0.4CoO3 Thin Films for Application in High-Temperature Electrochemical Cellscitations
- 2019Comprehensive Hypotheses for Degradation Mechanisms in Ni-Stabilized Zirconia Electrodescitations
- 2019A 4 × 4 cm2 Nanoengineered Solid Oxide Electrolysis Cell for Efficient and Durable Hydrogen Productioncitations
- 2018Sintering of MnCo2O4 coatings prepared by electrophoretic depositioncitations
- 2018Diffusion rates of reactants and components in solid oxide cells
- 2017Modeling of Ni Diffusion Induced Austenite Formation in Ferritic Stainless Steel Interconnectscitations
- 2017A Contribution to the Understanding of the Combined Effect of Nitrogen and Boron in Grey Cast Ironcitations
- 2017Corrosion study of ceria protective layer deposited by spray pyrolysis on steel interconnectscitations
- 2016Effects of strong cathodic polarization of the Ni-YSZ interfacecitations
- 2016Low temperature processed MnCo2O4 and MnCo1.8Fe0.2O4 as effective protective coatings for solid oxide fuel cell interconnects at 750 °Ccitations
- 2015Modeling of Ni Diffusion Induced Austenite Formation in Ferritic Stainless Steel Interconnectscitations
- 2014Influence of Mn-Co Spinel Coating on Oxidation Behavior of Ferritic SS Alloys for SOFC Interconnect Applications
- 2014Optimization of Ferritic Steel Porous Supports for Protonic Fuel Cells Working at 600°C
- 2014TOF-SIMS characterization of impurity enrichment and redistribution in solid oxide electrolysis cells during operationcitations
- 2014Ceria based protective coatings for steel interconnects prepared by spray pyrolysiscitations
- 2014Oxidation study of coated Crofer 22 APU steel in dry oxygencitations
- 2013High Temperature Oxidation of Ferritic Steels for Solid Oxide Electrolysis Stackscitations
- 2013Transmission Electron Microscopy Specimen Preparation Method for Multiphase Porous Functional Ceramicscitations
- 2012Durable and Robust Solid Oxide Fuel Cells
- 2012Improved oxidation resistance of ferritic steels with LSM coating for high temperature electrochemical applicationscitations
- 2012Efficient dual layer interconnect coating for high temperature electrochemical devicescitations
- 2011Electrical conductivity of Ni–YSZ composites: Degradation due to Ni particle growthcitations
- 2010Corrosion stability of ferritic stainless steels for solid oxide electrolyser cell interconnectscitations
- 2009Thermodynamic Assessment of the La-Cr-O Systemcitations
- 2009Thermodynamic assessment of the La-Fe-O systemcitations
Places of action
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article
Modeling of Ni Diffusion Induced Austenite Formation in Ferritic Stainless Steel Interconnects
Abstract
Ferritic stainless steel interconnect plates are widely used in planarsolid oxide fuel cell and electrolysis cell stacks.During stack production and operation, nickel fromthe Ni/yttria stabilized zirconia fuel electrode or from the Ni contactcomponent layer diffuses into the interconnectplate, causing transformation of the ferritic phase into an austeniticphasein the interface region. This is accompanied withchanges in volume, and in mechanical and corrosion properties of theinterconnectplates. In this work, kinetic modeling of theinter-diffusion between Ni and FeCr based ferritic stainless steel wasconducted,using the CALPHAD (CALculation of PHAse Diagrams)approach with the DICTRA (DIffusion Controlled TRAnsformation) software.The kinetics of inter-diffusion and austeniteformation was explored in detail. The simulation was further validatedby comparingwith experiments. The results show that after 2000 hat 800°C Ni diffuses more than 100 μm deep into Crofer 22 APU. Alongwith the Ni diffusion, part of the ferritic steelwith 50–60 μm in thickness has transformed into the austenitic phase.Growthof the austenite phase in commercial interconnectmaterials was predicted to take place under practical stack operationconditions.