Induced piezoactivity in the 3(1 − x)PMN − xPT solid solution

• Published in: Solid state communications 1998, Vol.107 (4), p.149-152
• Main Authors: Portelles, J., Font, R., Rosario, G., Fundora, A., Flores, L., Siqueiros, J.M., Hirata, G.
• Format: Article
• Language: English
• Subjects: A. piezoelectricity; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Dielectric properties of solids and liquids; Dielectric, piezoelectric, ferroelectric and antiferroelectric materials; Dielectrics, piezoelectrics, and ferroelectrics and their properties; electrostriction; Exact sciences and technology; Niobates, titanates, tantalates, pzt ceramics, etc; Permittivity (dielectric function); Physics; Piezoelectric and electrostrictive constants; Piezoelectricity and electromechanical effects
• ISSN: 0038-1098; 1879-2766
• DOI: 10.1016/S0038-1098(98)00186-0

PNS ceramics present piezoactivity under an applied d.c. bias field. The relative dielectric permittivity varies, in general over a wide range of values of the applied d.c. electric field. The purpose of this work is to study the induced piezoactivity effect produced by an applied d.c. electric field in the 3(1− x) PMN− xPT ( x−0.1) system assuming that the relative dielectric permittivity is a function of the applied d.c. electric field. An expression to calculate the electrostrictive coefficient Q 31 by measuring the coupling factor K p and the dielectric permittivity as functions of the applied electric field is presented.