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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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Kiviaho, Jari
VTT Technical Research Centre of Finland
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2015Post-experimental analysis of a solid oxide fuel cell stack using hybrid sealscitations
- 2015Evaluation of protective coatings for SOFC interconnectscitations
- 2015Evaluation of protective coatings for SOFC interconnectscitations
- 2014Scaling up MnCo2O4 ALD Process for Coating SOFC Interconnect Plates
- 2013Development and application of HVOF sprayed spinel protective coating for SOFC interconnectscitations
- 2012Method for measuring chromium evaporation from SOFC balance-of-plant componentscitations
- 2011Method for measuring chromium evaporation from SOFC balance-of-plant componentscitations
- 2010Performance of a 10 kW SOFC Demonstration Unitcitations
- 2010MnCo2O4 spinel chromium barrier coatigns coatings for SOFC interconnect by HVOF
- 2009Large-SOFC, Towards a Large SOFC Power Plant
- 2008Characterization SOFC Interconnect Materials: Sandvik Sanergy HT and Crofer 22 APU
- 2008Harmonisation of SOFC Test Procedures under FCTESqa
- 2007Thermal degradation of selected alloys for SOFC interconnectorscitations
- 2007Solid oxide fuel cell system development in VTTcitations
- 2006Characterization and control of autothermal reformer for SOFC applications
- 2006In-service degradation of interconnector materials for solid oxide fuel cells
Places of action
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document
MnCo2O4 spinel chromium barrier coatigns coatings for SOFC interconnect by HVOF
Abstract
Chromia released from steel parts used for interconnectplates by evaporation and condensation canquickly degrade the cell (cathode) performance in solidoxide fuel cell SOFC. Coatings on top of the ICplate can work as a chromium evaporation barrier. Thecoating material should have good electricalconductivity, high temperature stability and nearly thesame coefficient of thermal expansion as thecell materials. One candidate for the coating material isMnCo2O4 spinel because of its suitableproperties. High velocity oxy fuel (HVOF) spraying wasused for the coating application on Crofer 22APU steel samples. Using commercial and self made spraydried powders together with an HV2000spray gun it was possible to successfully manufacture,well adhering, dense and reasonably uniformcoatings. The samples were tested in oxidation exposuretests in air followed by post analysis in SEM.Powders and coatings microstructures are presented here,both before and after exposure. It wasfound out that together with spraying parameters thepowder characteristics used influence clearly tothe coating quality. Especially as very thin coatings wasaimed with dense structure fine powders wasfound to be essential