Temperature dependence of K<sub>t</sub>, in piezoelectric ceramics near F-AF phase boundary

Sr-containing PZT compositions were selected for identifying the ferroelectric (FE) -antiferroelectric (AFE) phase boundary within the zirconium rich region of the PbZrO-PbTiO3-SrTiO3 -SrZrO3 phase diagram and for inducing the AFE-FE phase transition upon application of an applied electric field. Processing methods, based on the powder processing and sintering, were developed for fabricating dense (98.5% of theoretical density) Srcontaining PZT samples suitable for the polarization measurements. PZT specimens, with a uniform microstructure and an average grain size of 3 pm were obtained. Polarization measurements were used to locate the FE-AFE phase boundary. Subsequently, compositions near the FE-AFE phase boundary were studied for the electric field induced AFE-FE phase transition. Fieldinduced AFE-FE phase switching was observed in compositions close to the AFE-FE boundary. Residual polarization upon AFE-FE transformation suggested a coexistence of both ferroelectric and antiferroelectric phases.

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Comments on the dielectric discontinuties in PZT ceramics near the ferro-paraelectric transition

Duan

Cereceda

Noheda

et al. 1996

Ferroelectrics Letters Section

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Temperature dependence of K_t, in piezoelectric ceramics near F-AF phase boundary

Cited by 3 publications

References 10 publications

Electromechanical coupling in phzt and plzt ceramic materials near the f-af phase boundary

Electromechanical coupling in phzt and plzt ceramic materials near the f-af phase boundary

Processing and polarization behavior of Sr-containing lead zirconate titanate

Comments on the dielectric discontinuties in PZT ceramics near the ferro-paraelectric transition

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Temperature dependence of Kt, in piezoelectric ceramics near F-AF phase boundary

Cited by 3 publications

References 10 publications

Electromechanical coupling in phzt and plzt ceramic materials near the f-af phase boundary

Electromechanical coupling in phzt and plzt ceramic materials near the f-af phase boundary

Processing and polarization behavior of Sr-containing lead zirconate titanate

Comments on the dielectric discontinuties in PZT ceramics near the ferro-paraelectric transition

Contact Info

Product

Resources

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Temperature dependence of K_t, in piezoelectric ceramics near F-AF phase boundary