Sintering Temperature Dependent Structural and Mechanical Studies of BaxPb1 − xTiO3 Ferroelectrics

Authors Sadiya Kazi1, Feeda Savanur1, Sushant Kakati2, Shridhar N. Mathad2, , P.R. Jeergal1, A.S. Pujar3, C.S. Hiremath4, S.L. Galgali3, M.K. Rendale5, R.B. Pujar1

1Departmant of Physics, P.C. Jabin Science College, Hubballi, India

2Department of Engineering Physics, K.L.E. Institute of Technology, Gokul Road, Hubballi, 580027 Karnataka, India

3Department of Physics, KLE's RLS Institute, Belgavi, India

4Department of Physics, H.S. Kotambri Science Institute, Hubballi, India

5Department of Physics, Gogte Institute of Technology, Belgavi, India

Issue Volume 12, Year 2020, Number 4
Dates Received 25 March 2020; revised manuscript received 15 August 2020; published online 25 August 2020
Citation Sadiya Kazi, Feeda Savanur, Sushant Kakati, et al., J. Nano- Electron. Phys. 12 No 4, 04018 (2020)
PACS Number(s) 61.10.Nz, 77.90. + k, 68.55.Jk
Keywords X-ray diffraction (19) , Ferroelectrics (2) , Morphology (8) .

Lead-Barium-Titanate (PBT) ferroelectric ceramic has been synthesized by using solid state reaction technique with different sintering temperatures. Structure of the samples was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). XRD of the Pb-Ba-TiO3 samples confirms the tetragonal perovskite ferroelectric structure with lattice parameters in the range 3.94-3.987 Å and 4.068-4.22 Å, respectively. The grain growth increases with sintering temperature and the grain size of these samples is observed in the range 0.6-1.713 m from SEM analysis. The absorption bands around 575 cm – 1 to 585 cm – 1 are assigned to the stretching vibrations of Ti–O bonds from FTIR analysis. The crystallite size (D), lattice constant (a), microstrain (ε), and dislocation density (ρD) are also reported. The Williamson-Hall plot and size-strain plot are also employed to understand the structural and mechanical attributes of ferroelectric samples. Thus, we report variation of structural and mechanical properties of PBT with respect to sintering temperature.

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