Structural and Electrical Properties of Bismuth Sodium Titanate (Bi0.5Na0.5TiO3) Ceramics | Chapter 10 | Current Innovations in Chemical and Materials Sciences Vol. 2

 Recent growths in high-hotness technology have increased the demand for dielectric potteries with sturdy dielectric properties. Furthermore, dielectric ceramics are judgment enormous requests in various energy depository systems. To address these necessities, this study mainly is focused on giving relaxor characteristics to Bismuth Sodium Titanate Bi0.5Na0.5TiO3 (BNT) potteries. A single-phase lead-free (BNT) perovskite ferroelectric porcelain was successfully combined via the solid-state response method. This study offers an painstaking examination on the structural and energetic characteristics of the BNT stoneware. Through phase analysis promoting Rietveld refined X-ray dissemination, it was determined that the crystal building of the BNT ceramic is alone-phase and possesses rhombohedral (R3c) proportion. Raman spectroscopy measurements further support the rhombohedral building of BNT, as indicated by the demeanor of multiple peaks risinging from the TiO6 octahedra. The ferroelectric nature of the BNT sample was confirmed through hysteresis loop calculations of polarization vs. energetic field (P-E). The BNT sample exhibited characteristic values of vestige polarization (Pr) and forcible field (Ec), which were measured expected 1.63 μC/cm2 and 29.91 kV/cm, respectively. The ferroelectric state transition was also noticed in temperature-contingent dielectric studies, with a transition hotness of 323 °C. Remarkably, the material displayed reduced values of tanδ even at high hotnesses, such as 500 °C, at a repetitiveness of 1 MHz. This suggests that the prepared BNT sample exhibits wonderful dielectric properties over a expansive temperature range, making it well-suited for a assortment of applications.

Author(s) Details:

Bijayalaxmi Kuanar,
Department of Physics, School of Sciences, GIET University, Gunupur-765022, Odisha, India.

Biswajit Dalai,
Department of Physics, School of Sciences, GIET University, Gunupur-765022, Odisha, India.

Dhrubananda Behera,
Department of Physics and Astronomy, NIT Rourkela–769008, Odisha, India.

Hari Sankar Mohanty,
Department of Physics, School of Sciences, GIET University, Gunupur-765022, Odisha, India.

Krishnamayee Bhoi,
Department of Physics, School of Sciences, GIET University, Gunupur-765022, Odisha, India.

Please see the link here: https://stm.bookpi.org/CICMS-V2/article/view/12332

Analysis ofCrystal Structure the BaTiO3 and ZrO2-doped (Bi0.5Na0.5)TiO3 with X-ray Diffraction Techniques Using the Rietveld Method | Chapter 7 | New Visions in Science and Technology Vol. 3

The crystal structures of a (Bi0.5Na0.5)TiO3 (BNT) compound doped with BaTiO3 (BT) and ZrO2 were investigated. (Bi0.5Na0.5)0.93Ba0.05Zr0.02TiO3 (BNBZT1), (Bi0.5Na0.5)0.90Ba0.05Zr0.05 (BNBZT2), and (Bi0.5Na0.5)0.85Ba0.05Zr0.10TiO3 (BNBZT3) were the three types of samples prepared (BNBZT3). In a solid-state reaction approach, the samples were generated using Bi2O3, Na2CO3, BaCO3, TiO2, and ZrO2 powders as basic ingredients. In an agate mortar, the fundamental ingredients were mixed for 3 hours. A 3,000 psi hydraulic press was utilised to make pellets from a precursor. Pellets were sintered for 5 hours at 1000°C after being calcined for an hour at 300°C. The materials were characterised using X-ray diffraction techniques based on the Rietveld method and Raman spectroscopy. BNT doped BT and ZrO2 had a tetragonal structure, space group I4/mcm, Volume I, No.140, with lattice parameters a = b = 5.519 (2), c = 7.808 (4) (BNBZT1), a = b = 5.512 (1), c = 7.798 (5) (BNBZT2), and a = b = 5.513 (1), c = 7.800 (2) ( (BNBZT3). By partial substitution of cations (Bi, Na)2+, Ba2+ and Zr4+ cations entered the BNT crystal structure in these three samples. However, some Ti3+ cations in BNBZT3 were replaced by Zr4+. BNBZT1, BNBZT2, and BNBZT3 have the ionic configuration (compound) (Bi0,45Na0,48)0,93Ba0,05Zr0,01TiO3, (Bi0,41Na0,49)0,90Ba0,05Zr0,03TiO3 and (Bi0,42Na0,43)0,85Ba0,05Zr0,01(Ti

Author (S) Details

Engkir Sukirman
Centre for Science and Technology of Advance Materials-BATAN, Puspiptek, Setu 15314, Tangerang Selatan, Banten province, Indonesia.

Syahfandi Ahda
Centre for Science and Technology of Advance Materials-BATAN, Puspiptek, Setu 15314, Tangerang Selatan, Banten province, Indonesia.

. Mardiyanto
Centre for Science and Technology of Advance Materials-BATAN, Puspiptek, Setu 15314, Tangerang Selatan, Banten province, Indonesia.

View Book :- https://stm.bookpi.org/NVST-V3/article/view/37245678