Structural, Impedance, and Leakage Current Characteristics of Stannum Modified Bi0.5Na0.5TiO3 Ceramic
| Autor: | Neeha Pradhani, Prasanta Kumar Mahapatra, R. N. P. Choudhary |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Polymers and Plastics Oxide Analytical chemistry chemistry.chemical_element 02 engineering and technology Dielectric 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Ferroelectricity 0104 chemical sciences Bismuth chemistry.chemical_compound chemistry visual_art Materials Chemistry visual_art.visual_art_medium Mixed oxide Grain boundary Ceramic 0210 nano-technology Perovskite (structure) |
| Zdroj: | Journal of Inorganic and Organometallic Polymers and Materials. 31:591-598 |
| ISSN: | 1574-1451 1574-1443 |
| Popis: | A perovskite ceramic oxide, stannum (Sn) modified bismuth sodium titanate (BNT) (i.e., Bi0.5Na0.5Ti0.80Sn0.20O3) was synthesized by using a mixed oxide powder reaction route. Analysis of the X-Ray diffraction spectrum supports the polycrystalline nature of the compound with tetragonal symmetry. A phase change from the ferroelectric to paraelectric transition is observed at around 315 °C. The temperature and frequency dependence of dielectric properties and AC conductivity data of the material are analyzed. The Nyquist plots explain the effect of the grain and grain boundary contribution on the polarization process of the material. The analysis of complex modulus spectroscopy exhibits the non-Debye relaxation in the compound. The doping of stannum at the titanium-site of BNT enhances the dielectric characteristics of the material. |
| Databáze: | OpenAIRE |
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