Piezoelectric properties of BiFeO$_{3}$ – PbTiO$_{3}$ ceramics

T.P. Comyn; T. Stevenson; A.J. Bell

doi:doi:10.1051/jp4:2005128003

Numéro		J. Phys. IV France Volume 128, September 2005


Page(s)		13 - 17
DOI		https://doi.org/10.1051/jp4:2005128003

J. Phys. IV France 128 (2005) 13-17
DOI: 10.1051/jp4:2005128003

Piezoelectric properties of BiFeO₃ - PbTiO₃ ceramics

T.P. Comyn, T. Stevenson and A.J. Bell

Institute for Materials Research, University of Leeds, LS2 9JT, UK

Abstract
Ceramics of type (BiFeO $_{3})_{\rm x}$ (PbTiO $_{3})_{1 \hbox{-} \rm x}$ have been fabricated using conventional mixed oxide synthesis. The strain field (xE)/polarisation field (PE) behaviour of compositions x = 0.80, 0.70, 0.65 and 0.60 have been studied. At high field strengths, piezoelectricity can be instilled in these materials. The composition x = 0.70 is observed to be the most active of those studied, with a total strain of 0.22% and a d₃₃ of 160 pm V^-1 using an electric field strength of 18 MV m^-1. It is not possible to determine the magnitude of the coercive field using the PE data in these materials. The most active composition is observed to lie outside the mixed phase region.

Piezoelectric properties of BiFeO3 - PbTiO3 ceramics

Piezoelectric properties of BiFeO₃ - PbTiO₃ ceramics