Paper Title:
Dielectric and Ferroelectric Properties of (Cr,Nb)-Doped Lead Zirconate Titanate Ceramics
  Abstract

The 3 mol% Nb2O5 doped Pb(Zr0.52Ti0.48)O3 with addition of 1-3 mol% Cr2O3 prepared via the solid-state reaction technique have been investigated. The XRD shows that a sample is primarily in both tetragonal and rhombohedral phases coexist and the amount of rhombohedral phase decreases that is due to the donor (Nb) dopant reduces the number of oxygen vacancies and leads to a lower amount of rhombohedral phase. The maximum dielectric constant tend to decrease with increasing Cr doping concentration from 0.1 to 1 mol%. Further increase in Cr concentration, the maximum dielectric constant increase dramatically. The hysteresis loop measurements, the electrical coercivity and the remnant polarization do not show a systematic trend at low concentration of Cr doping. It is possibly due to the partial solubility of Cr doping. The observations clearly indicate the hardening behavior at higher concentration because of more solubility of Cr.

  Info
Periodical
Key Engineering Materials (Volumes 421-422)
Edited by
Tadashi Takenaka, Hajime Haneda, Kazumi Kato, Masasuke Takata and Kazuo Shinozaki
Pages
385-388
DOI
10.4028/www.scientific.net/KEM.421-422.385
Citation
P. Ketsuwan, A. Prasatkhetragarn, S. Ananta, C. C. Huang, D. P. Cann, R. Yimnirun, "Dielectric and Ferroelectric Properties of (Cr,Nb)-Doped Lead Zirconate Titanate Ceramics", Key Engineering Materials, Vols. 421-422, pp. 385-388, 2010
Online since
December 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Athipong Ngamjarurojana, Supon Ananta, Rattikorn Yimnirun
Abstract:The structure and electrical properties of Al2O3-doped 0.2Pb(Zn1/3Nb2/3)O3-0.8Pb(Zr1/2Ti1/2)O3 ceramic, which is the morphotropic phase...
89
Authors: Ladapak Chumprasert, Narit Funsueb, Apichart Limpichaipanit, Athipong Ngamjarurojana
Chapter 1: Ceramics, Semiconductors and Composites
Abstract:Barium titanate (BT) additive in lanthanum modified lead zirconate titanate (PLZT) was used to modify the microstructure and resultant...
21