Title :
Separation of nonlinear and friction-like contributions to the piezoelectric hysteresis
Author :
Robert, Gilles ; Damjanovic, Dragan ; Setter, Nava
Author_Institution :
Dept. of Mater., Swiss Fed. Inst. of Technol., Lausanne, Switzerland
Abstract :
Based on direct and converse piezoelectric measurements, our results for relaxor-ferroelectric solid solutions 0.5 Pb(Zr,Ti)O3 -0.5 Pb(Ni1/3Nb2/3)O3 (PNN-PZT) show that piezoelectric hysteresis can be better described by a coupled Rayleigh-frictional model rather than by either model separately. The nonlinear parameters yielded by such loop analysis are in a good agreement with the ones obtained from piezoelectric nonlinearity, constituting a new validation of Rayleigh-inspired models for the piezoelectric response in ferroelectrics. Finally, the possible mechanisms leading to hysteresis formation are discussed
Keywords :
dielectric hysteresis; dielectric relaxation; ferroelectric materials; lead compounds; piezoelectric materials; PNN-PZT; Pb(Ni1-3Nb2-3)O3-PZT; Pb(Zr,Ti)O3-Pb(Ni1/3Nb2/3)O 3; PbNiNbO3-PbZrO3TiO3; converse piezoelectric measurements; coupled Rayleigh-frictional model; direct piezoelectric measurements; ferroelectrics; hysteresis formation; loop analysis; nonlinear parameters; piezoelectric hysteresis; piezoelectric nonlinearity; piezoelectric response; relaxor-ferroelectric solid solutions; Ceramics; Dielectric losses; Ferroelectric materials; Frequency; Hysteresis; Modems; Piezoelectric actuators; Piezoelectric materials; Solid modeling; Stress;
Conference_Titel :
Applications of Ferroelectrics, 2000. ISAF 2000. Proceedings of the 2000 12th IEEE International Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-5940-2
DOI :
10.1109/ISAF.2000.942416
