Effect of Superstoichiometric Bismuth Addition on the Structure and Dielectric Characteristics of the Solid Solutions (1−<i>x</i>)BiFeO<sub>3</sub>-<i>x</i>BaTiO<sub>3</sub>
Ceramic samples of solid solutions of the binary system (1−<i>x</i>)BiFeO<sub>3</sub>-<i>x</i>BaTiO<sub>3</sub> + 2 wt.% Bi<sub>2</sub>O<sub>3</sub> (0.29 ≤ x ≤ 0.33, Δx = 0.01) were prepared using the conventional solid-phase r...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
|
| Series: | Ceramics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2571-6131/8/1/7 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850090342699761664 |
|---|---|
| author | Nikita A. Boldyrev Egor S. Esin Lidia A. Shilkina Svetlana I. Dudkina Alexander V. Nagaenko Larisa A. Reznichenko |
| author_facet | Nikita A. Boldyrev Egor S. Esin Lidia A. Shilkina Svetlana I. Dudkina Alexander V. Nagaenko Larisa A. Reznichenko |
| author_sort | Nikita A. Boldyrev |
| collection | DOAJ |
| description | Ceramic samples of solid solutions of the binary system (1−<i>x</i>)BiFeO<sub>3</sub>-<i>x</i>BaTiO<sub>3</sub> + 2 wt.% Bi<sub>2</sub>O<sub>3</sub> (0.29 ≤ x ≤ 0.33, Δx = 0.01) were prepared using the conventional solid-phase reaction method with and without mechanical activation. Using X-ray studies, it was found that the objects have a pseudocubic crystal structure, and limited solubility occurs in solid solutions of the studied composition, as evidenced by the presence of regions with an increased Bi or Ba content and similar cell parameters. A diffuse phase transition occurred from the FE to PE state in the temperature ranges of (650–850) K. Relaxor-like behavior and the smearing of the phase transition in the studied ceramics can be associated with the presence of non-interacting regions with an increased content of Bi or Ba, different modulation, and crystal lattice symmetry. The grain morphology and dielectric characteristics of the selected solid solutions were investigated. The highest piezoelectric coefficient, d<sub>33</sub> = 120 pC/N, was obtained in the mechanically activated ceramics 0.71BiFeO<sub>3</sub>-0.29BaTiO<sub>3</sub> + 2 wt.% Bi<sub>2</sub>O<sub>3</sub>. |
| format | Article |
| id | doaj-art-ae862b7a85a3472da0f4dd8e5e18d68c |
| institution | DOAJ |
| issn | 2571-6131 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Ceramics |
| spelling | doaj-art-ae862b7a85a3472da0f4dd8e5e18d68c2025-08-20T02:42:35ZengMDPI AGCeramics2571-61312025-01-0181710.3390/ceramics8010007Effect of Superstoichiometric Bismuth Addition on the Structure and Dielectric Characteristics of the Solid Solutions (1−<i>x</i>)BiFeO<sub>3</sub>-<i>x</i>BaTiO<sub>3</sub>Nikita A. Boldyrev0Egor S. Esin1Lidia A. Shilkina2Svetlana I. Dudkina3Alexander V. Nagaenko4Larisa A. Reznichenko5Research Institute of Physics, Southern Federal University, Rostov-On-Don 344090, RussiaResearch Institute of Physics, Southern Federal University, Rostov-On-Don 344090, RussiaResearch Institute of Physics, Southern Federal University, Rostov-On-Don 344090, RussiaResearch Institute of Physics, Southern Federal University, Rostov-On-Don 344090, RussiaScientific Design and Technological Bureau “Piezopribor”, Southern Federal University, Rostov-On-Don 344090, RussiaResearch Institute of Physics, Southern Federal University, Rostov-On-Don 344090, RussiaCeramic samples of solid solutions of the binary system (1−<i>x</i>)BiFeO<sub>3</sub>-<i>x</i>BaTiO<sub>3</sub> + 2 wt.% Bi<sub>2</sub>O<sub>3</sub> (0.29 ≤ x ≤ 0.33, Δx = 0.01) were prepared using the conventional solid-phase reaction method with and without mechanical activation. Using X-ray studies, it was found that the objects have a pseudocubic crystal structure, and limited solubility occurs in solid solutions of the studied composition, as evidenced by the presence of regions with an increased Bi or Ba content and similar cell parameters. A diffuse phase transition occurred from the FE to PE state in the temperature ranges of (650–850) K. Relaxor-like behavior and the smearing of the phase transition in the studied ceramics can be associated with the presence of non-interacting regions with an increased content of Bi or Ba, different modulation, and crystal lattice symmetry. The grain morphology and dielectric characteristics of the selected solid solutions were investigated. The highest piezoelectric coefficient, d<sub>33</sub> = 120 pC/N, was obtained in the mechanically activated ceramics 0.71BiFeO<sub>3</sub>-0.29BaTiO<sub>3</sub> + 2 wt.% Bi<sub>2</sub>O<sub>3</sub>.https://www.mdpi.com/2571-6131/8/1/7dielectric propertiesperovskitesmultiferroicspiezoelectric propertiessolid solutions |
| spellingShingle | Nikita A. Boldyrev Egor S. Esin Lidia A. Shilkina Svetlana I. Dudkina Alexander V. Nagaenko Larisa A. Reznichenko Effect of Superstoichiometric Bismuth Addition on the Structure and Dielectric Characteristics of the Solid Solutions (1−<i>x</i>)BiFeO<sub>3</sub>-<i>x</i>BaTiO<sub>3</sub> Ceramics dielectric properties perovskites multiferroics piezoelectric properties solid solutions |
| title | Effect of Superstoichiometric Bismuth Addition on the Structure and Dielectric Characteristics of the Solid Solutions (1−<i>x</i>)BiFeO<sub>3</sub>-<i>x</i>BaTiO<sub>3</sub> |
| title_full | Effect of Superstoichiometric Bismuth Addition on the Structure and Dielectric Characteristics of the Solid Solutions (1−<i>x</i>)BiFeO<sub>3</sub>-<i>x</i>BaTiO<sub>3</sub> |
| title_fullStr | Effect of Superstoichiometric Bismuth Addition on the Structure and Dielectric Characteristics of the Solid Solutions (1−<i>x</i>)BiFeO<sub>3</sub>-<i>x</i>BaTiO<sub>3</sub> |
| title_full_unstemmed | Effect of Superstoichiometric Bismuth Addition on the Structure and Dielectric Characteristics of the Solid Solutions (1−<i>x</i>)BiFeO<sub>3</sub>-<i>x</i>BaTiO<sub>3</sub> |
| title_short | Effect of Superstoichiometric Bismuth Addition on the Structure and Dielectric Characteristics of the Solid Solutions (1−<i>x</i>)BiFeO<sub>3</sub>-<i>x</i>BaTiO<sub>3</sub> |
| title_sort | effect of superstoichiometric bismuth addition on the structure and dielectric characteristics of the solid solutions 1 i x i bifeo sub 3 sub i x i batio sub 3 sub |
| topic | dielectric properties perovskites multiferroics piezoelectric properties solid solutions |
| url | https://www.mdpi.com/2571-6131/8/1/7 |
| work_keys_str_mv | AT nikitaaboldyrev effectofsuperstoichiometricbismuthadditiononthestructureanddielectriccharacteristicsofthesolidsolutions1ixibifeosub3subixibatiosub3sub AT egorsesin effectofsuperstoichiometricbismuthadditiononthestructureanddielectriccharacteristicsofthesolidsolutions1ixibifeosub3subixibatiosub3sub AT lidiaashilkina effectofsuperstoichiometricbismuthadditiononthestructureanddielectriccharacteristicsofthesolidsolutions1ixibifeosub3subixibatiosub3sub AT svetlanaidudkina effectofsuperstoichiometricbismuthadditiononthestructureanddielectriccharacteristicsofthesolidsolutions1ixibifeosub3subixibatiosub3sub AT alexandervnagaenko effectofsuperstoichiometricbismuthadditiononthestructureanddielectriccharacteristicsofthesolidsolutions1ixibifeosub3subixibatiosub3sub AT larisaareznichenko effectofsuperstoichiometricbismuthadditiononthestructureanddielectriccharacteristicsofthesolidsolutions1ixibifeosub3subixibatiosub3sub |