Title :
Relaxation processes in PVDF-BaTiO3 composites revealed by TSP and TSD methods
Author :
Sergeeva, A.E. ; Fedosov, S.E. ; Vanderschueren, J. ; Thielen, A.
Author_Institution :
Odessa Technol. Inst., Ukraine
Abstract :
The electrical properties of PVDF-BaTiO3 composites are studied experimentally. The TSP and TSD curves are compared and the conclusion is made that the decrease in conductivity is related to the buildup of the ferroelectric polarization. Importance of the thermal stimulation is stressed. The information on parameters of the relaxation processes is obtained by the RMA method. The experimental results are consistent with the model developed previously for the ferroelectric polymers
Keywords :
barium compounds; dielectric depolarisation; dielectric polarisation; dielectric relaxation; electrical conductivity; ferroelectric materials; filled polymers; thermally stimulated currents; BaTiO3; PVDF-BaTiO3 composites; conductivity; electrical relaxation; ferroelectric polarization; thermally stimulated depolarisation; thermally stimulated poling; Amorphous materials; Charge carriers; Ferroelectric materials; Polarization; Powders; Pressing; Space charge; Testing; Thermal conductivity; Thermal stability;
Conference_Titel :
Electrets, 1994. (ISE 8), 8th International Symposium on
Conference_Location :
Paris
Print_ISBN :
0-7803-1940-0
DOI :
10.1109/ISE.1994.515221
