Dielectric, piezoelectric and pyroelectric properties of the Pb(Mg/sub 1/3/Ta/sub 2/3/)O/sub 3/-PbTiO/sub 3/-PbZrO/sub 3/ solid solution system

Dielectric, piezoelectric and pyroelectric response of selected compositions from the solid solution system have been investigated as a function of PT and PZ content for composition near the morphotropic phase boundary (PMT-PT). The dielectric constant and loss of poled samples were determined. The piezoelectric d/sub 33/ constant and electromechanical coupling factor were measured for various composition in the system. The pyroelectric coefficient and spontaneous polarization were measured by the static Byer-Roundy method as a function of temperature. The stability of the perovskite phase was studied as a function of sintering temperature. The transition temperature of the ceramics decreased gradually with the addition of PZ.