Control methods of microstructure construction process of piezoelectric ceramics based on doped titanate lead and its electrophysical properties

Abstract

Control methods of microstructure construction process of piezoelectric ceramics based on doped titanate lead and its electrophysical properties

The article describes methods allows to control the degree of anisotropy piezoelectric ceramics based on doped phase PbTiO3. As a model of the object has been selected phase of Pb0,76Ca0,24Ti0,94(Cd0,5W0,5)0,06O3. The model phase was obtained by the following methods: by solid state reaction method and the chemical construction. For comparison phases obtained by these methods were used modern analytical research methods (DTA, TGA, XRF, XRD, power and tunneling microscopy, computer-program research results). Piezoceramic samples were obtained from the synthesized phases and electrical parameters were measured. Were revealed that the samples, obtained from the charge, synthesized by chemical construction had values of  piezoelectric constants d31 and d33 much more than samples obtained by the method of solid state reaction.
Keywords: piezoelectric ceramics, anisotropy, ultrasonic issue systems.

Keywords: piezoelectric ceramics, anisotropy, ultrasonic issue systems