Influence of calcium doping on microstructure, dielectric and electric properties of BaBi2Nb2O9 ceramics
Authors:
- Małgorzata Maria Adamczyk-Habrajska,
- Beata Wodecka-Duś,
- Jolanta Makowska,
- Michał Rerak,
- Kamil Marcin Feliksik,
- Diana Szalbot
Abstract
Barium bismuth niobiate (BaBi2Nb2O9) ceramics modified by calcium were prepared by solid state synthesis and two-step sintering process. An impact of calcium substitution on the A site of perovskite block is presented. The investigations are focused on dielectric as well as electric aspects of the modification. The presented results reveal that the concentration of a space charge is not preserved, what is surprising due to the homovalent nature of the dopant and no reason for creating additional lattice defects and charges connected. However, not only the valence of ions, but also the calcium-oxygen and barium-oxygen bond strength should be taken into consideration. Since the calcium-oxygen bond is probably weaker the loss of the bismuth oxide is expected to increase with an increase in the calcium content. Such a scenario results in appearance of a large number of negative charge carriers connected with unsaturated oxygen ions.
- Record ID
- USL817af6da60f14cd69b11639fea9bf22d
- Author
- Journal series
- Processing and Application of Ceramics, ISSN 1820-6131, e-ISSN 2406-1034
- Issue year
- 2018
- Vol
- 12
- No
- 2
- Pages
- 171-179
- Publication size in sheets
- 0.40
- Keywords in English
- relaxor ferroelectric, lead-free materials, Aurivillius type materials, dielectric properties
- DOI
- DOI:10.2298/PAC1802171S Opening in a new tab
- Handle.net URL
- hdl.handle.net/20.500.12128/5447 Opening in a new tab
- Language
- eng (en) English
- License
- File
-
- File: 1
- Influence of calcium doping on microstructure, dielectric and electric properties of BaBi2Nb2O9 ceramics, File Szalbot_Influence_of_calcium_doping_on_microstructure.pdf / 2 MB
- Szalbot_Influence_of_calcium_doping_on_microstructure.pdf
- publication date: 06-02-2024
- Influence of calcium doping on microstructure, dielectric and electric properties of BaBi2Nb2O9 ceramics, File Szalbot_Influence_of_calcium_doping_on_microstructure.pdf / 2 MB
-
- Score (nominal)
- 30
- Score source
- BIBLIOGRAFIA DOROBKU PRACOWNIKÓW UŚ
- Publication indicators
- Citation count
- 5
- Uniform Resource Identifier
- https://opus.us.edu.pl/info/article/USL817af6da60f14cd69b11639fea9bf22d/
- URN
urn:uni-kat-prod:USL817af6da60f14cd69b11639fea9bf22d
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.