scholarly journals Piezoelectric properties of domain engineered barium titanate single crystals with different volume fractions of domain walls

2009 ◽  
Vol 106 (6) ◽  
pp. 064102 ◽  
Author(s):  
Yang Xiang ◽  
Rui Zhang ◽  
Wenwu Cao
Keyword(s):  
Barium Titanate ◽  
Single Crystals ◽  
Domain Walls ◽  
Piezoelectric Properties ◽  
Volume Fractions

Electromechanical Poling Treatment of Barium Titanate Single Crystals and their Piezoelectric Properties

2007 ◽  
Vol 350 ◽  
pp. 73-76
Author(s):  
Tomomitsu Muraishi ◽  
Keisuke Yokoh ◽  
Hirofumi Kakemoto ◽  
Takaaki Tsurumi ◽  
Satoshi Wada
Keyword(s):  
Phase Transition ◽  
Barium Titanate ◽  
Single Crystals ◽  
Electric Fields ◽  
Piezoelectric Properties ◽  
Uniaxial Stress ◽  
Notation System

The phase transition behaviors of the [111]c oriented barium titanate (BaTiO3) single crystals (the subscript c means the cubic notation system) were investigated as functions of temperature, uniaxial stress and electric fields. These results suggested that above Tc, combination between uniaxial stress and electric fields might be effective for a poling treatment of BaTiO3 single crystals. Thus, a new poling method for BaTiO3 single crystals was proposed using control of temperature, uniaxial stress and electric fields in this study.

Domain Wall Engineering in Barium Titanate Single Crystals for Enhanced Piezoelectric Properties

2006 ◽  
Vol 334 (1) ◽  
pp. 17-27 ◽  
Author(s):  
S. Wada ◽  
K. Yako ◽  
K. Yokoo ◽  
H. Kakemoto ◽  
T. Tsurumi
Keyword(s):  
Barium Titanate ◽  
Domain Wall ◽  
Single Crystals ◽  
Piezoelectric Properties

Enhanced piezoelectric properties of barium titanate single crystals with different engineered-domain sizes

2005 ◽  
Vol 98 (1) ◽  
pp. 014109 ◽  
Author(s):  
Satoshi Wada ◽  
Koichi Yako ◽  
Hirofumi Kakemoto ◽  
Takaaki Tsurumi ◽  
Takanori Kiguchi
Keyword(s):  
Barium Titanate ◽  
Single Crystals ◽  
Piezoelectric Properties

scholarly journals Effect of mechanical stresses on the domain structure of barium titanate single crystals

2020 ◽  
Vol 8 (4) ◽  
pp. 66-78
Author(s):  
V. V. Borodina ◽  
S. O. Kramarov
Keyword(s):  
Barium Titanate ◽  
Single Crystals ◽  
Domain Structure ◽  
Oxygen Vacancies ◽  
Domain Walls ◽  
Domain Switching ◽  
Mechanical Load ◽  
Ferroelectric Properties ◽  
Mechanical Stresses ◽  
The Impact

This review article summarizes the material of years of research on the impact of mechanical stresses on the domain structure of multiaxhetoelectrics using the example of barium titanium monocrystals. Since the discovery of the ferroelectric properties of barium titanate in 1944, this material has been the subject of comprehensive investigation as the first practically important and perhaps the most famous ferroelectric. The domain structure of barium titanate is sensitive to mechanical stresses arising both from simple uniaxial compression and from point impacts by local mechanical loading. Mechanical stress applied to a ferroelectric crystal may have a significant effect on dielectric and piezoelectric properties. In particular, 90-degree domain switching is possible under the influence of stresses. The most interesting experimental results are obtained in the study of elastoplastic processes in BaTiO 3 originating from local mechanical stresses. The following features are found and studied: development of strained region around the point of application of the load; “internal” 90-degree domain that does not extend to the crystal surfaces and does not close upon other domains; the growth of 90-degree domains under the influence of residual mechanical stresses; growth of cracks along charged 90-degree domain walls. The notions of “ferroplastic effect” (crystal deformation due to the formation of 90-degree ferroelectric domains) and “ferromechanical effect” (crack formation and growth along charged 90-degree domain walls) are introduced. The hypothesis of a significant role of oxygen vacancies in the processes of 90-degree domain reorientation was put forward and experimentally confirmed. In particular, an increase in the concentration of oxygen vacancies by reducing annealing of barium titanate single crystals creates more favorable conditions for the appearance of an "internal" 90-degree domain under local mechanical load. The study of the mechanisms governing the formation of a domain structure in ferroelectric crystals remains an important problem of modern materials science.

Enhanced Piezoelectric Properties of Barium Titanate Single Crystals by Domain Engineering

2006 ◽  
Vol 301 ◽  
pp. 23-26 ◽  
Author(s):  
Koichi Yako ◽  
Hirofumi Kakemoto ◽  
Takaaki Tsurumi ◽  
Satoshi Wada
Keyword(s):  
Barium Titanate ◽  
Electric Field ◽  
Single Crystals ◽  
Piezoelectric Properties ◽  
Domain Size ◽  
Domain Engineering ◽  
Domain Configuration ◽  
Piezoelectric Measurement ◽  
Batio3 Crystal ◽  
Curie Temperature Tc

Engineered domain configuration was induced into barium titanate (BaTiO3) single crystals, and the d33 piezoelectricity was investigated as a function of domain size. Prior to the domain engineering, the dependence of domain configuration on the temperature and the electric-field was investigated, and above Curie temperature (Tc), when the electric-field over 16 kV/cm was applied along [111]c direction, the fine engineered domain configuration appeared. On the basis of the above information, the 33 resonators with different domain sizes were successfully prepared. Their piezoelectric measurement revealed that the d33 of the 33 resonators with fine-engineered domain configurations were higher than those of BaTiO3 single-domain crystals. Moreover, d33 increased with decreasing domain sizes. The highest d33 of 289 pC/N was obtained in the BaTiO3 crystal with a domain size of 13μm.

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