Pullarao, T and Vishnunarayanan, S and Suresh, P and Nagaraju, G (2019) Synthesis and electrical properties of lead-free piezo electrics for magnetoelectric applications. In: International Conference on Advances in Materials and Manufacturing Applications 2018, IConAMMA 2018, 16-18 August 2018, Bengaluru; India.
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Abstract
The Lead-free piezoelectric polycrystalline materials, BaTiO3 (BTO) and Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) ceramic are prepared by sol-gel synthesis method. The synthesis dynamics and the effect of sintering temperature on the purity and the formation of morphotropic phase boundaries in these samples are investigated. X-ray Diffraction studies show the cubic phase for the BTO at low temperature, whereas it transforms into the tetragonal for higherature synthesis. The BCZT exists in the mixed phases of tetragonal and orthorhombic structures. Formation of MPBs in BCZT are observed for the sintering temperature above 1350 °C. Polarization (P) versus electric field (E) measurement shows enhanced polarization values for the BCZT in comparison to the BTO.
| Item Type: | Conference Paper |
|---|---|
| Publication: | IOP Conference Series: Materials Science and Engineering |
| Publisher: | Institute of Physics Publishing |
| Additional Information: | copyright of this article belongs to Institute of Physics Publishing |
| Department/Centre: | Division of Physical & Mathematical Sciences > Physics |
| Date Deposited: | 05 Feb 2020 10:03 |
| Last Modified: | 05 Feb 2020 10:03 |
| URI: | http://eprints.iisc.ac.in/id/eprint/64433 |
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