Polarization and electrophysical parameters of piezoceramic materials investigation

The effect of temperature and electric field strength on the polarization and dielectric relaxation of the Ba_0.85Ca_0.15Zr_0.1Ti_0.9O₃ piezoceramic material has been studied. Experimental studies were carried out using the automated information-measuring system developed by the authors. It is based on the modified Sawyer–Tower circuits, which make it possible to measure the hysteresis loops of the polarization dependences on the electric field strength in the ferroelectric phase at different temperatures.