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| Content Provider | Springer Nature Link |
|---|---|
| Author | DUBEY, SHIVANGI KURCHANIA, RAJNISH |
| Copyright Year | 2015 |
| Abstract | This paper presents the ferroelectric and dielectric properties of five-layer Aurivillius oxides (Ba$_{2}$Bi$_{4}$Ti$_{5}$O$_{18}$, Pb$_{2}$Bi$_{4}$Ti$_{5}$O$_{18}$ and Sr$_{2}$Bi$_{4}$Ti$_{5}$O$_{18}$) prepared by a solution combustion route with glycine as a fuel at low calcination temperature. The phase formation of these materials with pseudo-tetragonal structure was achieved after calcination at 750°C for 3 h; as confirmed by X-ray diffraction studies. Scanning electron microscopy of the sintered ceramics shows that the grains exhibit a plate-like morphology. The ferroelectric to paraelectric transition temperature (T $_{c}$) for Ba-, Pb- and Sr-based bismuth titanate ceramics was found to be 350, 280 and 260°C, respectively. All three materials show multiple relaxation phenomena and their electrical conductivity was found to be temperature dependent. The Pb$_{2}$Bi$_{4}$Ti$_{5}$O$_{18}$ ceramic possessed the highest value of activation energy (0.68 eV) and hence shows better ferroelectric properties, as compared to barium and strontium bismuth titanates. |
| Starting Page | 1881 |
| Ending Page | 1889 |
| Page Count | 9 |
| File Format | |
| ISSN | 02504707 |
| Journal | Bulletin of Materials Science |
| Volume Number | 38 |
| Issue Number | 7 |
| e-ISSN | 09737669 |
| Language | English |
| Publisher | Indian Academy of Sciences |
| Publisher Date | 2015-12-05 |
| Publisher Institution | Indian Academy of Sciences |
| Publisher Place | Bangalore, India |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Ceramics X-ray diffraction dielectric properties ferroelectric properties. Materials Science Engineering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Mechanics of Materials Materials Science |
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