Electrical creep and fatigue in 0.5Ba(Zr0.2Ti0.8)O₃-0.5(Ba0.7Ca0.3)TiO₃ ceramics

Abstract

In this study, the creep and fatigue characterization is performed for 0.5Ba(Zr[Formula: see text]Ti[Formula: see text]O[Formula: see text]0.5(Ba[Formula: see text]Ca[Formula: see text]TiO3 (BZT-BCT) bulk ferroelectric ceramics. A function generator is used to generate the required waveform of the voltage amplifier for fatigue and creep analysis. The evolution of polarization is studied for electrical creep. The effects of temperature and electric field on the electric displacement are studied. Hysteresis–butterfly loops are analyzed for fatigue tests for different thermal loads up to 106 cycles. It inheres that the material is stable below 75[Formula: see text]C and can withstand high cycle fatigue loads (25 Hz, ± 1.5 kV/mm).

Effect of poling on electrochemical properties of Ag/Ba0.85Ca0.15Zr0.1Ti0.9O3 composites

“…Ba 0.85 Ca 0.15 Zr 0.1 Ti 0.9 O 3 (BCT-BZT) is one of the potential materials for various emerging energy harvesting and catalysis fields. [19][20][21][22][23][24] It has Curie temperature of around 85 C and has interesting electrical properties. A large number of literature is evidence of its excellent properties.…”