Structural and Dielectric Properties of Ba-Doped BNT Ceramics
Vol. 18 (2022), Physics
Vol. 18 (2022)

Structural and Dielectric Properties of Ba-Doped BNT Ceramics

Physics
Published 2022-04-05
Khushboo Thapa
Department of Physics, ACBS, Eternal University, Sirmour, HP 173101, India
Priyanka Thankur
Department of Physics, ACBS, Eternal University, Sirmour, HP 173101, India
Navdeep Sharma
Department of Physics & Astronomical Sciences, Central University of Jammu, J&k 181143, India
Sanjeev Sharma
Department of Chemistry, School of Applied Sciences, Om Sterling Global University, Hisar 125001, India
Asad Ali
Department of Physics, Post Graduate College Nowshera, 24100, Pakistan
Abid Zaman
Department of Physics, Riphah International University Islamabad, 44000, Pakistan
Madan Lal
Department of Physics, ACBS, Eternal University, Sirmour, HP 173101, India
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Keywords

X-ray diffraction
BNT
Ceramics
Dielectric
Ac-conductivity

How to Cite

Thapa, K., Thankur, P., Sharma, N., Sharma, S., Ali, A., Zaman, A., & Lal, M. (2022). Structural and Dielectric Properties of Ba-Doped BNT Ceramics. Journal of Basic & Applied Sciences, 18, 47–57. Retrieved from http://set-publisher.com/index.php/jbas/article/view/2386
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Abstract

In this study, lead-free Ba-doped ((Bi(0.5)Na0.5)TiO3 ceramics were synthesized by the conventional solid-state reaction method and characterized by X-ray diffraction technique, which indicates the pure crystalline nature of ceramics with ABO3 symmetry. The splitting in the peaks reveals that the ceramics with x = 0.10 and 0.30 are well in Morphotrophic Phase Boundary where rhombohedral and tetragonal phases co-exist. The scanning electron microscope images show that the average grain size of the ceramics increases with an increase in the Ba concentration. Dielectric properties of pure and Ba-doped ((Bi(0.5)Na0.5)TiO3ceramics measured by LCR meter in the frequency range of 1 k Hz – 1 M Hz shows the decrease in the value of dielectric constant with an increase in frequency. εmax = 5563 was obtained at x = 0.30 with TC = 300 °C at the frequency of 1 k Hz, whereas σ (f) curves were found to be merging at a high value of frequency and temperature regions.

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