Szczegóły publikacji
Opis bibliograficzny
Enhanced diffraction and spectroscopic insight into layer-structured $Bi_{6}Fe_{2}Ti_{3}O_{18}$ ceramics / Zbigniew PĘDZICH, Agata Lisińska-Czekaj, Dionizy Czekaj, Agnieszka WOJTECZKO, Barbara Garbarz-Glos // Materials [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 1996-1944. — 2025 — vol. 18 iss. 15 art. no. 3690, s. 1–19. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 17–19, Abstr. — Publikacja dostępna online od: 2025-08-06
Autorzy (5)
- AGHPędzich Zbigniew
- Lisińska-Czekaj Agata
- Czekaj Dionizy
- AGHWojteczko Agnieszka
- Garbarz-Glos Barbara
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 161843 |
|---|---|
| Data dodania do BaDAP | 2025-09-04 |
| Tekst źródłowy | URL |
| DOI | 10.3390/ma18153690 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Materials |
Abstract
Bi6Fe2Ti3O18 (BFTO) ceramics were synthesized via a solid-state reaction route using stoichiometric amounts of Bi2O3, TiO2, and Fe2O3 powders. A thermal analysis of the powder mixture was conducted to optimize the heat treatment parameters. Energy-dispersive X-ray spectroscopy (EDS) confirmed the conservation of the chemical composition following calcination. Final densification was achieved through hot pressing. The crystal structure of the sintered samples, examined via X-ray diffraction at room temperature, revealed a tetragonal symmetry for BFTO ceramics sintered at 850 °C. Electron backscatter diffraction (EBSD) provided detailed insight into the crystallographic orientation and microstructure. Broadband dielectric spectroscopy (BBDS) was employed to investigate the dielectric response of BFTO ceramics over a frequency range of 10 mHz to 10 MHz and a temperature range of −30 °C to +200 °C. The temperature dependence of the relative permittivity (εr) and dielectric loss tangent (tan δ) were measured within a frequency range of 100 kHz to 900 kHz and a temperature range of 25 °C to 570 °C. The impedance data obtained from the BBDS measurements were validated using the Kramers–Kronig test and modeled using the Kohlrausch–Williams–Watts (KWW) function. The stretching parameter (β) ranged from ~0.72 to 0.82 in the impedance formalism within the temperature range from 200 °C to 20 °C.
