Time-Resolved, Electric-Field-Induced Domain Switching and Strain in Ferroelectric Ceramics and Crystals

Author(s):  
Jacob L. Jones ◽  
Juan C. Nino ◽  
Abhijit Pramanick ◽  
John E. Daniels
2018 ◽  
Vol 51 (3) ◽  
pp. 630-634 ◽  
Author(s):  
Takuro Kawasaki ◽  
Yasuhiro Inamura ◽  
Takayoshi Ito ◽  
Takeshi Nakatani ◽  
Stefanus Harjo ◽  
...  

A time-resolved time-of-flight neutron diffraction technique to characterize the structural properties of materials during cyclic tests has been developed for the neutron diffractometers at J-PARC. Using this technique, diffracted neutrons and the applied cyclic conditions are recorded as event data together with time information. The amplitude and phase of the conditions of all recorded neutron signals can be specified by using the characteristics of the event data. By adopting the developed technique, the behaviors of the crystal lattice and domains of the piezoelectric material in a multilayer-type piezoelectric actuator driven by a cyclic electric field were evaluated. The developed technique enabled the collection and processing of diffraction data for all levels of the applied electric field, as opposed to only the highest and lowest levels. The variation in diffraction intensity during the application of a cyclic electric field was obtained successfully, and the hysteresis-like behaviors of both the lattice strain and the 90° domain switching were revealed.


1999 ◽  
Vol 14 (7) ◽  
pp. 2940-2944 ◽  
Author(s):  
Fei Fang ◽  
Wei Yang ◽  
Ting Zhu

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.


2001 ◽  
Vol 16 (8) ◽  
pp. 2306-2313 ◽  
Author(s):  
Shan Wan ◽  
Keith Bowman

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.


2013 ◽  
Vol 566 ◽  
pp. 3-6
Author(s):  
Motonori Nakamura ◽  
Chiharu Sakaki ◽  
Masahiko Kimura ◽  
Takehiro Konoike ◽  
Hiroshi Takagi ◽  
...  

Fatigue tests on lead zirconate titanate (PZT) were performed by using single-edge-V-notched specimens under cyclic mechanical loading with or without superposition of a DC electric field. Fatigue life was prolonged by applying a DC electric field to the PZT ceramics. To estimate the domain contribution, fatigue tests on barium strontium titanate (BST) ceramics in both ferroelectric and paraelectric phase were carried out. The fatigue life of the ferroelectric phase was much shorter than that of the paraelectric phase. Comparing the fatigue lives of two PZT ceramics with different values of coercive electric field (Ec) revealed that the fatigue life of the PZT with higher Ec is about one order of magnitude longer than that with lower Ec when the stress-intensity factor of fatigue test is low. It is therefore concluded that non-180°domain switching probably deteriorates the fatigue life of ferroelectric ceramics.


2015 ◽  
Vol 804 ◽  
pp. 71-74
Author(s):  
Thanapong Sareein ◽  
Athipong Ngamjarurojana ◽  
Rattikorn Yimnirun

Hybrid-doped BaTiO3 ferroelectric ceramics Ba (Ti(0.99-x)Mn0.01Tax)O3 systems have been prepared by a conventional mixed-oxide method viavibro-milling technique. The dielectric properties at room temperature were observed under magnetic field applied parallel to electric field. The results indicate significant changes of both properties with the magnetic field. Moreover, explained in terms of the induction of magnetization by means of an electric field and induction of polarization according to domain switching of the dielectric properties under the influence of the applied magnetic field.


2018 ◽  
Vol 189 (02) ◽  
pp. 187-194 ◽  
Author(s):  
Nikita V. Marchenkov ◽  
Anton G. Kulikov ◽  
Ivan I. Atknin ◽  
Arsen A. Petrenko ◽  
Alexander E. Blagov ◽  
...  

2006 ◽  
Vol 89 (9) ◽  
pp. 092901 ◽  
Author(s):  
Jacob L. Jones ◽  
Mark Hoffman ◽  
John E. Daniels ◽  
Andrew J. Studer

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