Inhomogeneous Electric Field-Induced Structural Changes in Soft Lead Zirconate Titanate Ferroelectric Ceramics

2021 ◽  
Author(s):  
Jianwei Zhao ◽  
Stephen D. Funni ◽  
Emily R. Molina ◽  
Elizabeth C. Dickey ◽  
Jacob L. Jones
Keyword(s):  
Electric Field ◽  
Lead Zirconate Titanate ◽  
Structural Changes ◽  
Lead Zirconate ◽  
Ferroelectric Ceramics ◽  
Inhomogeneous Electric Field ◽  
Zirconate Titanate

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

1999 ◽  
Vol 14 (7) ◽  
pp. 2940-2944 ◽  
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.

Modeling of electric field induced texture in lead zirconate titanate ceramics

2001 ◽  
Vol 16 (8) ◽  
pp. 2306-2313 ◽  
Author(s):  
Shan Wan ◽  
Keith Bowman
Keyword(s):  
Electric Field ◽  
Interaction Energy ◽  
Lead Zirconate Titanate ◽  
Domain Switching ◽  
Texture Evolution ◽  
Threshold Energy ◽  
Lead Zirconate ◽  
Ferroelectric Ceramics ◽  
Domain Orientation ◽  
Zirconate Titanate

Preferred domain orientation of a piezoelectric ceramic develops through domain switching under electric poling. In previous investigations the critical free energy required for domain switching has been assumed as a constant. This assumption leads to overestimation of the poling-induced texture and provides no explanation for the switching reversal in ferroelectric ceramics after the poling field is removed. In this paper, the contribution of intergranular stress to critical energy for 90° domain switching is investigated. A criterion including intrinsic threshold energy and an interaction energy, which is related to the intergranular stress and the intergranular depolarization field, is proposed. The texture evolution during poling process is simulated using a computational model starting from an initial random domain orientation distribution. The resulted domain orientation distributions under and after poling are predicted. The remanent domain switching after poling is the result of the balance between the interaction energy and intrinsic threshold energy. The final texture is much weaker than that under the electric field. Pole figures of poled Navy VI lead zirconate titanate measured by x-ray diffraction are consistent with the predicted textures.

Delayed fracture of lead zirconate titanate ferroelectric ceramics under sustained electric field

2003 ◽  
Vol 82 (10) ◽  
pp. 1583-1585 ◽  
Author(s):  
Y. Wang ◽  
W. Y. Chu ◽  
K. W. Gao ◽  
Y. J. Su ◽  
L. J. Qiao
Keyword(s):  
Electric Field ◽  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Ferroelectric Ceramics ◽  
Delayed Fracture ◽  
Zirconate Titanate

Effect of Humidity on Delayed Propagation of Indentation Crack under Sustained Electric Field in Ferroelectric Ceramics

2010 ◽  
Vol 177 ◽  
pp. 109-113 ◽  
Author(s):  
Li Wei Li ◽  
Jin Xu Li ◽  
Y.J. Su ◽  
W.Y. Chu ◽  
L.J. Qiao
Keyword(s):  
Electric Field ◽  
Lead Zirconate Titanate ◽  
Incubation Time ◽  
Coercive Field ◽  
Lead Zirconate ◽  
Ferroelectric Ceramics ◽  
Humid Air ◽  
Propagation Length ◽  
Zirconate Titanate ◽  
Indentation Crack

The effect of humidity on delayed propagation of indentation crack in lead zirconate titanate ferroelectric ceramics under sustained electric field was investigated. The results indicated that delayed propagation of indentation crack could occur in humid air at 98%RH without electric field but it did not in air at RH  30%. The threshold electric field and incubation time for delayed propagation of indentation crack increased but the increment of propagation length decreased with decreasing the humidity. When the electric field is large of 0.14 times of the coercive field, the delayed propagation could also occur in vacuum.

De-aging of Fe-doped lead-zirconate-titanate ceramics by electric field cycling: 180°- vs. non-180° domain wall processes

2012 ◽  
Vol 112 (3) ◽  
pp. 034103 ◽  
Author(s):  
Julia Glaum ◽  
Yuri A. Genenko ◽  
Hans Kungl ◽  
Ljubomira Ana Schmitt ◽  
Torsten Granzow
Keyword(s):  
Domain Wall ◽  
Electric Field ◽  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Zirconate Titanate ◽  
Field Cycling ◽  
Titanate Ceramics

Electric field forced phase switching in La‐modified lead zirconate titanate stannate thin films

1994 ◽  
Vol 75 (3) ◽  
pp. 1699-1704 ◽  
Author(s):  
K. G. Brooks ◽  
J. Chen ◽  
K. R. Udayakumar ◽  
L. E. Cross
Keyword(s):  
Thin Films ◽  
Electric Field ◽  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Phase Switching ◽  
Zirconate Titanate

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

2013 ◽  
Vol 113 (4) ◽  
pp. 044104 ◽  
Author(s):  
A. Peláiz-Barranco ◽  
A. C. Garcia-Wong ◽  
Y. González-Abreu ◽  
J. D. S. Guerra
Keyword(s):  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Ferroelectric Ceramics ◽  
Zirconate Titanate
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