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Synthesis and electrical properties of lead-free piezo electrics for magnetoelectric applications

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.

iop_con_ser_mat_sci_enG_577-1_2019.pdf - Published Version

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Official URL: https://dx.org/10.1088/1757-899X/577/1/012067


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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