Effect of composition on rate dependence of ferroelastic/ferroelectric switching in perovskite ceramics
Abbreviated Journal Title
Mater. Sci. Technol.
Ferroelastic perovskites; Rayleigh law; Domain switching; Stress-strain; loops; Rate dependence; ZIRCONATE-TITANATE CERAMICS; PIEZOELECTRIC RESPONSE; FERROELECTRIC; CERAMICS; FREQUENCY-DEPENDENCE; DOMAIN-WALLS; THIN-FILMS; Materials Science, Multidisciplinary; Metallurgy & Metallurgical; Engineering
The process of ferroelectric/ferroelastic switching is rate dependent as evidenced by the frequency dependence of the coercive field/stress in polarisation/strain-electric field/stress loops. The rate dependence of domain switching has been investigated in different compositions of ferroelectric/ferroelastic perovskites by studying their stress-strain hysteresis loops. Stress-strain loops were generated by applying a static compressive load and then superimposing cyclic compressive loads of different amplitudes and frequencies. The stress-strain loops were fitted using a Rayleigh type relationship, whose parameters characterise the intrinsic and extrinsic contributions to the strain. Using these parameters, the rate dependence of the extrinsic domain wall contribution was investigated.
Materials Science and Technology
"Effect of composition on rate dependence of ferroelastic/ferroelectric switching in perovskite ceramics" (2009). Faculty Bibliography 2000s. 2264.