| Autor: |
Mezzourh, H., Belkhadir, S., Mezzane, D., Amjoud, M., Choukri, E., Lahmar, A., Gagou, Y., Kutnjak, Z., Marssi, M. El |
| Rok vydání: |
2020 |
| Předmět: |
|
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1016/j.physb.2020.412760 |
| Popis: |
The Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) ceramics were successfully prepared by sol-gel process, and sintered at 1420 degree. The effect of sintering times (2, 4 and 6 h) on structural, microstructural, electric properties, energy storage, and electrocaloric effect was systematically examined. X-ray diffraction (XRD) results show that all the samples crystallize in the pure perovskite structure. The morphotropic phase transition from the tetragonal to the orthorhombic phase (T-O) was identified and confirmed by Rietveld refinement. The BCZT ceramic sintered at 1420 degree for 4h possesses a good relative density of 98%, and exhibits optimal properties with a high dielectric permittivity ~16310, a large electrocaloric effect coefficient ~ 0.244Kmm/kV and an energy density storage of ~ 10.61 mJ/cm3. |
| Databáze: |
arXiv |
| Externí odkaz: |
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