| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Oliveira, Leonardo
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2024Coupled local residual shear and compressive strain in NaNbO 3 ceramics under coolingcitations
- 2024Heterogeneous Antiferroelectric Ordering in NaNbO3-SrSnO3 Ceramics Revealed by Direct Superstructure Imaging
- 2024Heterogeneous Antiferroelectric Ordering in NaNbO 3 –SrSnO 3 Ceramics Revealed by Direct Superstructure Imaging
- 2024Advancing room temperature NO2 gas sensing performance through high-energy mechanical milling of Tin-dichalcogenides
- 2024Coupled local residual shear and compressive strain in NaNbO3 ceramics under coolingcitations
- 2023Combined Experimental and First Principles Study on Nanostructured NbFeSb Half- Heusler Alloy Synthesized by Mechanical Alloyingcitations
- 2022Piezoelectric properties of mechanochemically processed 0.67BiFeO3-0.33BaTiO3 ceramicscitations
Places of action
| Organizations | Location | People |
|---|
article
Piezoelectric properties of mechanochemically processed 0.67BiFeO3-0.33BaTiO3 ceramics
Abstract
Solid solutions of BiFeO<sub>3</sub> and BaTiO<sub>3</sub> are promising lead-free piezoelectric materials, especially around the morphotropic phase boundary at 0.67BiFeO<sub>3</sub>-0.33BaTiO<sub>3</sub>. Still, these materials are challenged by phase instability and limited understanding of the processing-properties relationship. Here, we investigate mechanochemical activation and the use of BaTiO<sub>3</sub> as seed particles for the 0.67BiFeO<sub>3</sub>-0.33BaTiO<sub>3</sub> phase. Contrary to expectations from seeding in lead-based perovskites, the BaTiO<sub>3</sub> seeds do not promote the 0.67BiFeO<sub>3</sub>-0.33BaTiO<sub>3</sub> perovskite phase neither during the mechanochemical activation nor the subsequent sintering, but cause an inhomogeneous structure with remnant BaTiO<sub>3</sub>. This results in ceramics with weaker low-field piezoelectric response than that of the unseeded route, but with higher field-induced strain, even up to 150 °C. Both routes produce ceramics of high density and without significant secondary phases visible by X-ray diffraction. This demonstrates the advantage of mechanochemical activation and the possibility to tailor the piezoelectric response of 0.67BiFeO<sub>3</sub>-0.33BaTiO<sub>3</sub> through the processing route.