Effect of the Synthesis Route on the Structural, Morphological and Dielectric Properties of Bi4 (Ni2/3,Ta1/3)0.08Ti2.92O12 Aurivillius Phases

Authors

H. Menasra, Laboratory of Applied Chemistry, University of Biskra, Biskra, AlgeriaFollow
K. Bounab, Laboratory of Applied Chemistry, University of Biskra, Biskra, AlgeriaFollow
Z. Necira, Laboratory of Applied Chemistry, University of Biskra, Biskra, AlgeriaFollow
A. Meklid, Laboratory of Applied Chemistry, University of Biskra, Biskra, AlgeriaFollow
A. Boutarfaia, Laboratory of Applied Chemistry, University of Biskra, Biskra, AlgeriaFollow

Abstract

The effect of 8% of (Ni2+, Ta5+) content and the route of synthesis (i.e., conventional solid state reaction « CSS » and molten salt method « MS ») on micro-structural, morphological and dielectric properties of BIT ceramics have been investigated. X-ray diffraction (XRD) analysis revealed that the (Ni,Ta)- modified BIT ceramics have a pure orthorhombic three-layer Aurivillius type structure. Phase purity is obtained at 950°C by CSS reaction and by the MS method at 850°C. SEM/ EDX results confirms that the samples have a relatively dense pure, with micro-grains plate-like, structure typical for Aurivillius layered structures but strongly influenced by the crystallite size of both methods. The dielectric constant and the tangent loss of 8%-BNTT have been found to be decreasing by shifting the curie temperature to a high temperature, when we change the reaction from CSS to MS.

Recommended Citation

Menasra, H.; Bounab, K.; Necira, Z.; Meklid, A.; and Boutarfaia, A. (2020) "Effect of the Synthesis Route on the Structural, Morphological and Dielectric Properties of Bi4 (Ni2/3,Ta1/3)0.08Ti2.92O12 Aurivillius Phases," International Journal of Thin Film Science and Technology: Vol. 9 : Iss. 3 , PP -.
Available at: https://digitalcommons.aaru.edu.jo/ijtfst/vol9/iss3/8