Asian Journal of Research in Chemistry
  • Year: 2019
  • Volume: 12
  • Issue: 3

Simultaneous Spectrophotometric Estimation of A Structural and Electrical Properties of A Doped Ferroelectric Ceramics Type PFN–PNN–PZT

  • Author:
  • Loubna Benamor1,, Ahmed Boutarfaia2, Louiza Zenkhri1, Omar Bentouila1, Amar Khelassi3, Kribaa Oum Keltoum2, Salah Zenkhri4
  • Total Page Count: 5
  • Page Number: 182 to 186

1Univ Kasdi Merbah Ouargla, Chemistry Department, Faculty of Mathematics and Matter Sciences, BP 511 Route Ghardaia, Ouargla, Algeria-30 000

2Univ Mohammed Khider Biskra, Science of Matter Department, Faculty of Exact Sciences and Sciences of Nature and life, BP 145 RP. 00700, Biskra

3Univ Kasdi Merbah Ouargla, Civil Enginneering and Hydrolic Department, Faculty of Applied Sciences, BP 511 Route Ghardaia, Ouargla, Algeria-30 000

4Ecosystem Protection in Arid and Semi- Arid Laboratory, Kasdi Merbah University, BP 511, 30000, Ouargla, Algeria

*Corresponding Author E-mail: loubnabenamor@yahoo.fr

Online published on 19 December, 2019.

Abstract

0.05Pb(Fe1/2Nb1/2)O3-0.05Pb(Ni1/3Nb2/3)O3-0.90Pb (ZrxTi(1-x))O3 (abbreviated as PFNN–PZT) quaternary piezoelectric ceramics with varying Zr/Ti ratio, which locate in the vicinity of the morphotropic phase boundary (MPB), were prepared by a conventional mixed-oxide route. The phase structure, the piezoelectric and dielectric properties of the system were investigated. X-ray diffraction patterns indicate that the MPB of the tetragonal and rhombohedral phase lies in the range 0.49 < x < 0.53. Both the piezoelectric coefficient (d31) electromechanical coupling factor (kp) and the dielectric constant (εr) reach the maximum values at x = 0.51. this reflects the transition from tetragonal phase to rhombohedral phase, which makes this material a good candidate for high-power multilayer piezoelectric transformer applications.

Keywords

PFNN-PZT, Morphotropic phase boundary, Piezoelectric properties, Dielectric properties, Temperature stability