Please use this identifier to cite or link to this item: http://localhost:8080/xmlui/handle/123456789/3890
Title: INFLUENCE OF TRANSITION METAL IONS ON MULTIFERROIC PROPERTIES OF LEAD-FREE NBT–BT CERAMICS
Authors: Shanmuga Sundari, S
Dhanasekaran, R
Keywords: Ceramics
ferroelectricity
piezoelectricity
atomic force microscopy
Issue Date: 17-Dec-2019
Publisher: World Scientific Connecting Great Minds
Abstract: Using the conventional solid-state reaction method, 0.5wt.% of MnO2-, NiO-, Cr2O3-, Fe2O3- and Co2O3-added 0.94Na0.5 Bi0.5 TiO3 (NBT)–0.06BaTiO3 (BT) ceramics were prepared. The perovskite nature of the prepared ceramics was analyzed by powder XRD and the surface morphology was studied by means of SEM. The dielectric analysis was carried out from room temperature to 350∘ C at various frequencies and the diffusive transition at the dielectric maxima confirmed the relaxor nature of the ceramics. Creation of oxygen vacancies by the possible substitution of ferromagnetic impurities decreased the dielectric constant and piezoelectric constant (d33) The co-existence of ferromagnetism and the ferroelectricity was observed in the Mn, Ni, Co and Cr-added NBT–BT ceramics. The magnetic force microscopy (MFM) analysis was carried out to study the ferromagnetic domains in the prepared ceramic.
URI: https://www.worldscientific.com/doi/abs/10.1142/S2010135X19500450
Appears in Collections:f) 2019-Scopus Open Access (PDF)



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