Numéro J. Phys. IV France Volume 137, November 2006 189 - 192 http://dx.doi.org/10.1051/jp4:2006137039 23 décembre 2006
35th Winter School on Wave and Quantum Acoustics
J. Bodzenta, M. Dzida and T. Pustelny
J. Phys. IV France 137 (2006) 189-192

DOI: 10.1051/jp4:2006137039

## Parameters of ceramics obtained on the base PZT used to build electroacoustic converters

R. Zachariasz and D. Bochenek

Department of Material Science, Faculty of Computer Science and Material Science, University of Silesia, 3 $\dot{\rm Z}$eromskiego St., 41-200 Sosnowiec, Poland
e-mail: rzachari@us.edu.pl; dbochene@us.edu.pl

(Published online 23 December 2006)

Abstract
Modifying the basic chemical compositions of converters, obtained on the base of two - component solid solutions of the PZT type, is possible by the use of suitable dopants. In the work the complex of electric parameters, such as: kp, , , d31, SE11, EC, Pr was determined for five different compositions of ceramics of the PZT type, used to product electroacoustic converters. The samples to research were condensed by conventional ceramic sintering method, replacing partly the ions Pb2 + with ions Ba2 + or Sr2 + . To basic chemical compositions of ceramic samples, hard: Mn2 + and Cr2 + or soft: Nb5 + dopants were introduced, too.