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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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Teocoli, Francesca
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Topics
Publications (9/9 displayed)
- 2017Enhanced densification of thin tape cast Ceria-Gadolinium Oxide (CGO) layers by rheological optimization of slurriescitations
- 2016Novel ceramic processing method for substitution of toxic plasticizerscitations
- 2015Fast mass interdiffusion in ceria/alumina compositecitations
- 2015Modeling constrained sintering of bi-layered tubular structurescitations
- 2015Modeling constrained sintering of bi-layered tubular structurescitations
- 2014Thermo-mechanical properties of SOFC components investigated by a combined method
- 2013Shape distortion and thermo-mechanical properties of dense SOFC components from green tape to sintered body
- 2012Shape distortion and thermo-mechanical properties of SOFC components from green tape to sintering body
- 2012Shape distortion and thermo-mechanical properties of SOFC components from green tape to sintering body
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article
Modeling constrained sintering of bi-layered tubular structures
Abstract
Constrained sintering of tubular bi-layered structures is being used in the development of various technologies. Densification mismatch between the layers making the tubular bi-layer can generate stresses, which may create processing defects. An analytical model is presented to describe the densification and stress developments during sintering of tubular bi-layered samples. The correspondence between linear elastic and linear viscous theories is used as a basis for derivation of the model. The developed model is first verified by finite element simulation for sintering of tubular bi-layer system. Furthermore, the model is validated using densification results from sintering of bi-layered tubular ceramic oxygen membrane based on porous MgO and Ce0.9Gd0.1O1.95-d layers. Model input parameters, such as the shrinkage kinetics and viscous parameters are obtained experimentally using optical dilatometry and thermo-mechanical analysis. Results from the analytical model are found to agree well with finite element simulations as well as measurements from sintering experiment.