Pyroelectric behavior and thermally stimulated processes in niobium modified lead zirconate titanate ferroelectric ceramics

Bipolar electric fatigue in antiferroelectrics of the lead zirconate titanate stannate ceramics family was investigated. Variations in strain hysteresis loops and damages in microstructure of the materials due to the electric cycling were analyzed. The materials showed symmetric or asymmetric suppression of strain hysteresis loop, normal or diffuse AFE-FE phase transition and intact or damaged microstructure after 5×10-7 cycles, indicating a strong composition dependent fatigue effect and the corresponding mechanism. In general, the antiferroelectric materials exhibited much higher fatigue resistance than ferroelectric ceramics reported previously.

Download Full-text

Crack tip 90° domain switching in tetragonal lanthanum-modified lead zirconate titanate under an electric field

Journal of Materials Research ◽

10.1557/jmr.1999.0393 ◽

1999 ◽

Vol 14 (7) ◽

pp. 2940-2944 ◽

Cited By ~ 32

Author(s):

Fei Fang ◽

Wei Yang ◽

Ting Zhu

Keyword(s):

Electric Field ◽

Electric Fields ◽

Lead Zirconate Titanate ◽

Powder Processing ◽

Domain Switching ◽

Crack Tip ◽

Lead Zirconate ◽

Processing Technique ◽

Ferroelectric Ceramics ◽

Zirconate Titanate

Lanthanum-modified lead zirconate titanate ferroelectric ceramics (Pb0.96La0.04)(Zr0.40Ti0.60)0.99O3 were synthesized by the conventional powder processing technique. X-ray diffraction experiments revealed that the samples belong to the tetragonal phase with a = b = 0.4055 nm, c = 0.4109 nm, and c/a = 1.013. After being poled, the samples were indented with a 5-kg Vickers indenter, and lateral electric fields of 0.4 Ec, 0.5 Ec, and 0.6 Ec (Ec = 1100 V/mm) were applied, respectively. Field-emission scanning electron microscopy showed that 90° domain switching appeared near the tip of the indentation crack under a lateral electric field of 0.6 Ec. A mechanism of 90° domain switching near the crack tip under an electric field is discussed.

Download Full-text

Grain growth kinetics and electrical properties of lanthanum modified lead zirconate titanate (9/65/35) based ferroelectric ceramics

Journal of Applied Physics ◽

10.1063/1.3063693 ◽

2009 ◽

Vol 105 (1) ◽

pp. 014110 ◽

Cited By ~ 2

Author(s):

R. Alvarez Roca ◽

E. R. Botero ◽

F. Guerrero ◽

J. D. S. Guerra ◽

D. Garcia ◽

...

Keyword(s):

Electrical Properties ◽

Grain Growth ◽

Lead Zirconate Titanate ◽

Growth Kinetics ◽

Lead Zirconate ◽

Ferroelectric Ceramics ◽

Zirconate Titanate ◽

Grain Growth Kinetics

Download Full-text

Dielectric properties of composite based on ferroelectric copolymer of poly(vinylidene fluoride-trifluoroethylene) and ferroelectric ceramics of barium lead zirconate titanate

Journal of Advanced Dielectrics ◽

10.1142/s2010135x1720003x ◽

2017 ◽

Vol 07 (05) ◽

pp. 1720003

Author(s):

A. V. Solnyshkin ◽

I. L. Kislova ◽

I. M. Morsakov ◽

A. N. Belov ◽

V. I. Shevyakov ◽

...

Keyword(s):

Dielectric Properties ◽

Lead Zirconate Titanate ◽

Vinylidene Fluoride ◽

Composite Films ◽

Lead Zirconate ◽

Ferroelectric Ceramics ◽

Zirconate Titanate ◽

Solvent Cast ◽

Poly Vinylidene Fluoride ◽

Frequency Dependences

A study of dielectric properties of composite films on the base of poly(vinylidene fluoride-trifluoroethylene) copolymer P(VDF-TrFE) and ferroelectric ceramics of barium lead zirconate titanate (BPZT) solid solution is presented in this work. The composite films containing up to 50 vol.% of BPZT grains with size [Formula: see text]1[Formula: see text][Formula: see text]m were prepared by the solvent cast method. Frequency dependences of real and imaginary components of the complex permittivity were determined. The concentration dependence of the dielectric constant was discussed.

Download Full-text