Electrical Properties of (1-x)Ba(Bi0.5Ta0.5)O3-xBaTiO3 Ceramic System

Authors

  • Jeewan Kumar University Department of Physics, T.M. Bhagalpur University, Bhagalpur 812 007, India Author
  • S.N. Choudhary University Department of Physics, T.M. Bhagalpur University, Bhagalpur 812 007, India Author
  • R.N.P. Choudhary Department of Physics, Institute of Technical and Educational Research, S.O.A. University, Bhubneswar751 030, Orissa, India Author
  • K. Prasad Aryabhatta Centre for Nanoscience and Nanotechnology, Aryabhatta Knowledge University, Patna 800 001, India Author

DOI:

https://doi.org/10.14741/

Keywords:

Lead free ceramic, Dielectric properties, Relaxor, Electric modulus, AC conductivity.

Abstract

Lead-free perovskite (1-x)Ba(Bi0.5Ta0.5)O3-xBaTiO3; x = 0.25, 0.50, 0.75 were prepared by conventional ceramic fabrication technique at 1220-1290°C/4h in air atmosphere. X-ray, SEM, electric modulus, dielectric and ac conductivity studies was carried out for characterization. The SEM analysis shows the average grain size to be 0.12 to 0.45 m. Complex electric modulus analyses suggested the dielectric relaxation to be of non-Debye type. Dielectric studies indicated the relaxor behaviour of 0.25Ba(Bi0.5Ta0.5)O3-0.75BaTiO3. The correlated barrier hopping model was employed to successfully explain the mechanism of charge transport in the system. AC conductivity data indicated the negative temperature coefficient of resistance (NTCR) character of the samples like that of semiconductors.

References

Published

2016-02-29

Issue

Vol.6, No.2 (Mar/Apr 2016)

Section

Articles

How to Cite

Electrical Properties of (1-x)Ba(Bi0.5Ta0.5)O3-xBaTiO3 Ceramic System. (2016). International Journal of Current Engineering and Technology, 6(2), 427-430. https://doi.org/10.14741/