A study of the electrophysical parameters of some solid solutions of the Pb0.88Ba0.08Sr0.04TixZr1-xO3 system

The present paper deals with a study of the effect of replacement of Pb2+ i ons by Ba2+ and Sr2+ ions in a discrete series Pb0.88Ba0.08Sr0.04TixZr1-xO3 With 0.2 < x < 0.55, X-ray studies were carried out. The temperature depen dencies of the pyroelectric coefficient in a dynamic regime, the capacitanc e and the conductivity were determined. The additional maxima corresponding to the isostructural transition from a low temperature rhombohedral to a h igh-temperature phase were obtained on the temperature curve of the pyroele ctric coefficient. OF particular interest is the composition with the PbTiO 3 content of 0.34 mol% having the high value of pyroelectric coefficient d( T-room) similar to 7 x 10(4) C/(m(2) x K).