Loading...
Effect of BFCO Doping on Phase Structure, Microstructure, Electric and Magnetic Properties of BNKLT Ceramics Prepared by the Combustion Method
Author(s)
Thawong, Pichittra
Bongkarn, Theerachai
Jantasurin, Jirawat
Pinitsoontorn, Supree
Charoonsuk, Thitirat
Udeye, Thanya
Date Issued
January 1, 2021
Type
Article
Abstract
Lead free solid solution Bi0.5(Na0.68K0.22Li0.10)0.5TiO3-xmol%Bi2FeCrO6 (BNKLT-xBFCO), with x = 0, 0.004, 0.007, 0.013 and 0.019, ceramics were calcined at 750 °C and sintered at 1150 °C for 2 h using the solid state combustion technique. The effect of the x content on the phase formation, microstructure, electric and magnetic properties of the produced ceramics were investigated. All samples exhibited a pure perovskite phase with the co-existence of rhombohedral and tetragonal phases. The doping of BFCO enhanced the density and dielectric properties of the BNKLT ceramics. The BNKLT-0.013BFCO ceramics showed the highest density (5.87 g/cm3), excellent dielectric properties (ε R ∼1390, tan δ R ∼0.039, ε m ∼4986 and tan δ m ∼0.075) and the highest piezoelectric constant (d33∼194 pC/N). The sample with x = 0 showed diamagnetic behavior, while the samples with 0.004-0.019 content exhibited paramagnetic behavior with higher magnetization at higher x content.
Citation
Integrated Ferroelectrics, 214(1), 69-78, 2021