- Tytuł:
- Structure and Dielectric Properties of V and Y Disorder Doped SrBi2Nb2O9 Ceramics
- Autorzy:
-
Afqir, Mohamed
Elaatmani, Mohamed
Zegzouti, Abdelouahad
Tahiri, Nabiha
Daoud, Mohamed - Powiązania:
- https://bibliotekanauki.pl/articles/2174596.pdf
- Data publikacji:
- 2022
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
molten salt method
Co-doping
characterization - Opis:
- Y and V codoped SrBi2Nb2O9 ceramics, which have been characterized by XRD, FTIR and SEM techniques, were prepared through molten salt using NaCl-KCl medium. Through X-ray diffraction analysis, all prepared samples were matched by undoped SrBi2Nb2O9. The lattice parameters do not depend on the amount of dopants. Under the optimized experimental conditions, the compounds are composed of small crystallites of varying size and orientation, resulting in many micros train defects. FTIR spectra revealed that the dopant promotes a slight decrease in the 612 cm-1 band. A plate-like morphology was revealed by scanning electron microscopy, while Nyquist plots indicate non-Debye relaxation for all compounds. V and Y were incorporated into SrBi2Nb2O9 lattice in order to reduce dielectric loss tangent. Thus, the codoping increases the of SrB1.9Y0.1Nb1.95V0.05O9 (Y0.1V0.05) ceramic whereas, they were significantly decreased in the case of SrB1.8Y0.2Nb2O9 (Y0.2) ceramic. Y0.1V0.05 sample makes up the highest efficient charge transfer, followed by Y0.2 sample representing the lowest.
- Źródło:
-
Archives of Metallurgy and Materials; 2022, 67, 4; 1455--1458
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł