Size- and Shape-Controlled Synthesis of Ferroelectric Plate-like Particles and Their Piezoelectric Characteristics |
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| M. Macek-Krzmanc, H. Ursic Nemevsek, D. Suvorov, R. Ciobanu |
- Abstract:
- Ba1-xSrxTiO3 plate-like particles were prepared by the topochemical transformation of the Bi4Ti3O12 template plates in the molten salt. During the conversion, which took place at 900 °C in the presence of high access of BaCO3 and SrCO3 (Bi4Ti3O12: (BaCO3+SrCO3)=1:10) with the initial Ba:Sr molar ratios equal to 0.98:0.02 and 0.9:0.1, the precursor plate shape was well preserved especially in terms of side length, while the average thicknesses of the final perovskite plates were higher compared to that of template. Energy dispersive spectroscopy (EDS) revealed that the initial Ba:Sr ratio was not maintained during the transformation, namely Sr incorporated more than Ba. The initial Ba:Sr=0.98:0.02 and 0.9:0.1 ratios resulted in the tetragonal Ba0.98Sr0.06Bi0.02Ti0.97O3 and cubic Ba0.79Sr0.24Bi0.02Ti0.97O3 perovskite plates, respectively.
Local Ferroelectric/piezoelectric hysteresis loops that were obtained using a piezoresponse-force microscope (PFM), indicated the significant ferroelectric response of [001] preferentially oriented µm-sized Ba0.98Sr0.06Bi0.02Ti0.97O3 plates. - Keywords:
- synthesis, piezoelectric characteristics
- Download:
- IMEKO-TC4-2017-086.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC4
- Event name:
- TC4 Symposium 2017
- Title:
22nd IMEKO TC4 Symposium and 20th International Workshop on ADC Modelling and Testing
"Supporting world development through electric&electronic measurements"- Place:
- Iasi, ROMANIA
- Time:
- 14 September 2017 - 15 September 2017