Rezumat
Polarizing processes and charging conditions of composites on the basis of polar polymer poivini- lidenftorid (PVDF) with piezoceramic filler PKR-33 as well as a method of thermostimulation depolarization have been investigated. It is found that TSD peaks are connected with different relaxation processes in piezo- composites and can characterize a nature of piezoelectricity in non-uniform polarized samples. It’s estab- lished, that piezoeffects in compositions are caused by a volumetric charge saved on interphase border pol- ymer-piezofiller. These charges and domains of piezoparticles form the interconnected stable system.