Synthesis, microstructure and dielectric properties of Sb-doped multiferroic Bi0.8Ba0.2Fe1−xSbxO3 ceramics
| Autor: | Doreir Benzebeiri, Chahrazed Benhamideche, Youghourta Belhocine, Abdelghani May, Salah-Eddine Bouaoud, Cherif Benachour |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Journal of Advanced Dielectrics, Vol 9, Iss 4, Pp 1950030-1-1950030-8 (2019) |
| Druh dokumentu: | article |
| ISSN: | 2010-135X 2010-1368 2010135X |
| DOI: | 10.1142/S2010135X19500309 |
| Popis: | The multiferroic ceramics Bi0.8Ba0.2Fe1−xSbxO3 with x=0, 0.01, and 0.02 were synthesized using the solid-phase reaction technique. The samples were sintered at two different temperatures, 850∘C and 900∘C. Scanning electron microscopy revealed the effect of antimony concentration on grain size and formation. The effect of Sb-doping on the crystal structure and ferroelectric properties of these ceramics was investigated using X-ray diffraction, Raman spectroscopy, and dielectric measurements. The dielectric constant was enhanced upon Fe3+ substitution by Sb3+ without affecting the dielectric loss of the ceramics. The tetragonal distortion of the rhombohedral symmetry of BiFeO3 caused by Ba-doping at Bi3+ site was lifted by Sb-doping at Fe3+ site. |
| Databáze: | Directory of Open Access Journals |
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