| 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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Gomes, M.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2022Induced internal stresses and their relation to FLASH sintering of KNN ceramicscitations
- 2020Carbon Nanotube/Poly(dimethylsiloxane) Composite Materials to Reduce Bacterial Adhesioncitations
- 2012Natural Polymers in Tissue Engineering Applicationscitations
- 2012Chondrogenic phenotype of different cells encapsulated in κ-carrageenan hydrogels for cartilage regeneration strategiescitations
- 2011Serum total and bone alkaline phosphatase and tartrate-resistant acid phosphatase activities for the assessment of bone fracture healing in dogscitations
- 2010Differentiation of mesenchymal stem cells in chitosan scaffolds with double micro and macroporositycitations
- 2010Cartilage tissue engineering using electrospun PCL nanofiber meshes and MSCscitations
- 2009Contribution of outgrowth endothelial cells from human peripheral blood on in vivo vascularization of bone tissue engineered constructs based on starch polycaprolactone scaffoldscitations
- 2008Development of novel polymer-ferromagnetic microparticles for cell isolation
- 2008Natural Polymers in Tissue Engineering Applicationscitations
- 2008Composite panels reinforced by waste fibrous materials
- 2008Chitosan microparticles as injectable scaffolds for tissue engineeringcitations
- 2008Chitosan microparticles as injectable scaffolds for tissue engineering applications
- 2006Electrospun starch-polycaprolactone nano fibers
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article
Induced internal stresses and their relation to FLASH sintering of KNN ceramics
Abstract
Electric field and current applied to an unsintered ceramic body are known to promote low temperature and extremely fast densification, in a process referred to as FLASH sintering. Under the current urgency of the green transition of manufacturing processes, FLASH sintering is a very promising technology for materials industry. Suitable FLASH conditions result in dense ceramics but many issues associated with the effect of electric field and current on local chemistry, structure, and microstructure remain to be understood. We have used FLASH sintering to produce K0.5Na0.5NbO3 (KNN), a lead-free compound suitable for piezoelectric applications. Using a combined X-ray diffraction and Raman spectroscopy study, here we show for the first time that, although the FLASH process may produce homogeneous ceramics with negligible concentration of secondary phase, macroscopic core-localized stresses remain which have significant consequences on the final properties of the sintered material. In addition, the internal stress state and its dependence on the local temperature during FLASH sintering are established by Finite Element Modelling (FEM). The identification of the fine structure of FLASH sintered materials is critical for understanding the unique properties developed under this sintering process and for its development as an alternative low thermal budget sintering technology.