Fabrication and Characterization of Dielectric Properties of BaTiO3/Ni0.6Zn0.4Fe2O4 Multiphase Multiferroic
A. Hussain1, M. A. Matin2, M. F. Islam3
1A. Hussain, Department of Glass and Ceramic Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh.
2M. A. Matin, Department of Glass and Ceramic Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh.
3Dr. Md. Fakhrul Islam, Department of Glass and Ceramic Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh.
Manuscript received on November 08, 2015. | Revised Manuscript received on November 18, 2015. | Manuscript published on November 30, 2015. | PP: 11-14 | Volume-2 Issue-12, November 2015. | Retrieval Number: L03501121215
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Multiphase multiferroic ceramics based on xBaTiO3 (BTO)/(1-x)Ni0.6Zn0.4Fe2O4 (NZFO) system were fabricated employing solid–state synthesis route. The composition of BTO was varied with x= 0.7-0.9 and sintered at 1275ºC or 1275ºC. Employing field emission scanning electron microscopy (FESEM) an improved microstructure has been found for samples sintered at 1275ºC. X-ray diffraction study confirmed the crystalline tetragonal perovskite structure of BTO phase and cubic spinel structure of NZFO phase in fabricated samples at all sintering temperatures. With increasing NZFO content dielectric constant was found to be decreased at the studied frequency range of 100 Hz to 2 MHz at room temperature. Curie temperature has shown to increase significantly with increasing composition of NZFO and broadened.
Keywords: Multiferroic composites, dielectric constant, Microstructure, BTO/NZFO.