Estudio de propiedades de materiales de PZT en función de la composición en las proximidades de la región de la frontera transición romboédrica-ortorrómbica

The complete piezoelectric characterization in PZT doped with Nb has been investigated in the vicinity of the A O -F R phase. To study the market influence of the Nb compositional fluctuations on th phase transition precise determinations of the involved elasto-piezo-dielectric parameters are reported as a function of composition by means of the resonance method. Results include dielectric permittivity, elastic constants and coupling factors plotted versus the Nb and Ti composition rates.