Ferroelectric Properties of Mechanically Synthesized Nanosized Barium Titanate
| Autor: | Biljana Stojanović, V. Vukotic, Alexandre Zirpoli Simões, José Arana Varela, Čedomir Jovalekić |
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| Rok vydání: | 2005 |
| Předmět: |
010302 applied physics
Barium oxide Materials science Oxide 02 engineering and technology Dielectric 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Ferroelectricity Electronic Optical and Magnetic Materials Titanium oxide chemistry.chemical_compound chemistry Chemical engineering visual_art 0103 physical sciences Barium titanate visual_art.visual_art_medium Ceramic 0210 nano-technology Perovskite (structure) |
| Zdroj: | Ferroelectrics. 319:65-73 |
| ISSN: | 1563-5112 0015-0193 |
| Popis: | Barium titanate ceramics were prepared through mechanochemical synthesis starting from fresh prepared barium oxide and titanium oxide in rutile form. Mixture of oxides was milled in zirconia oxide jar in the planetary ball-mill during 30, 60, 120 and 240 min. Extended time of milling directed to formation of higher amount of barium titanate perovskite phase. Barium titanate with good crystallinity was formed after 240 min. Sintering without pre-calcinations step was performed at 1330°C for 2 hours with heating rate of 10°C/min. The XRD, DSC, IR and TEM analyses were performed. Electric and ferroelectric properties were studied. Very well defined hysteresis loop was obtained. |
| Databáze: | OpenAIRE |
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