Influence of Poling Conditions on Properties of BaTiO<sub>3</sub> Single Crystal

Nakao, Osamu; Tomomatsu, Kazuhiko; Ajimura, Shoji; Kurosaka, Akihito; Tominaga, Haruo

doi:10.1143/jjap.31.3117

Cited by 18 publications

(7 citation statements)

References 11 publications

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“…This domain instability and subsequent difficulty in obtaining single domain crystals may be related to residual elastic strain upon poling. 7 As for the case of BaTiO 3 crystals, single domain PZN-PT crystals may require a specific elastic treatment during the poling process. The d i j s of ͗111͘ oriented crystals given in Table I, therefore, are coefficients measured from partially depoled crystals, and not single domain crystals.…”

Section: B Strain Versus E-field Behavior For "š111‹… Oriented Pzn-4mentioning

confidence: 99%

Electric field dependence of piezoelectric properties for rhombohedral 0.955Pb(Zn1/3Nb2/3)O3– 0.045PbTiO3 single crystals

Liu

Park

Shrout

et al. 1999

Journal of Applied Physics

227

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The electric field dependence of the piezoelectric properties of rhombohedral 0.955Pb(Zn1/3Nb2/3)O3–0.045PbTiO3 crystals were investigated as a function of orientation with respect to the prototypic (cubic) axes. For 〈111〉 oriented fields, depolarization and subsequent domain reorientation resulted in an apparent maximum in the piezoelectric coefficients occurring at ∼5 kV/cm, followed by nonhysteretic dij saturation, indicating a single domain state under bias. By extrapolation, single domain values for the piezoelectric coefficients d33 and d31 were determined to be 125 and −35 pC/N, respectively. The hydrostatic piezoelectric coefficient dh for single domain crystals was calculated to be ∼55 pC/N, coincident with the experimentally determined values under hydrostatic pressure. For 〈001〉 oriented fields, piezoelectric coefficients d33〈001〉 and d31〈001〉 as high as 2250 and −1000 pC/N were determined, respectively. Although a high value of dh〈001〉 (∼250 pC/N) was expected, the experimentally determined value was only ∼50 pC/N. A change of polar vector within the crystal lattice was discussed in relation to the volume strain associated with an E-field induced phase transition and the possible origin of the discrepancy in hydrostatic dh values.

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Section: B Strain Versus E-field Behavior For "š111‹… Oriented Pzn-4mentioning

confidence: 99%

Electric field dependence of piezoelectric properties for rhombohedral 0.955Pb(Zn1/3Nb2/3)O3– 0.045PbTiO3 single crystals

Liu

Park

Shrout

et al. 1999

Journal of Applied Physics

227

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“…10,11 For example, the presence of domain regions, usually 180 • domains, can increase the dielectric constant of BaTiO 3 . 10,12 The polarization direction of the domains can be changed by using an external electric field at a temperature lower than T C (tetragonal phase). The domain structure can be observed by scanning probe microscopy.…”

Section: Introductionmentioning

confidence: 99%

Surface potential of BaTiO3single crystal near the Curie temperature

et al. 2011

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A shift in the binding energies in Ba 3d and Ti 2p core-level spectra was observed when the electronic properties of nonprepolarized and prepolarized BaTiO 3 surfaces were studied using x-ray photoelectron spectroscopy during heating and cooling near the Curie temperature (T C ). From a comparison of this shift for nonprepolarized and prepolarized crystals, different magnitudes and directions were noted. The differences are not connected with chemical shifts induced by any new chemical bonds. The shift in binding energy is considered to be a change of surface potential due to surface charging caused by the heating of the ferroelectric crystal through T C .

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“…49 In the case of neat BT nanoparticles, sharp and strong diffraction peaks were observed at 22 , 31 , 39 , 45 , 51 , 56 , and 66 , which correspond to the reflections of (100), ( 110), ( 111), (002)/(200), ( 210), (211), and (220) planes of the BT nanocrystals in the tetragonal phase, respectively. 10,12,21,50 The X-ray diffraction patterns of WPU/BT nanocomposite films exhibited distinctive diffractions corresponding to both the WPU and BT components. However, the intensity of the diffraction varied based on the relative composition of the nanocomposite films.…”

Section: Morphological and Microstructural Analysesmentioning

confidence: 99%

Piezoelectric nanocomposite films based on anionic waterborne polyurethane and barium titanate nanoparticle: Fabrication, microstructure, and property characterization

Seo,

Tang,

Kim

et al. 2023

Polymer Composites

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We report the fabrication, microstructure, thermal property, and piezoelectric performance of flexible waterborne polyurethane (WPU) nanocomposite films reinforced with barium titanate (BT) nanoparticles with ~50 nm diameter. An anionic segmented WPU was synthesized via bulk polymerization, and its nanocomposite films containing 10–40 wt% BT were fabricated via aqueous dispersion casting and hot pressing. Although the BT nanoparticles interacted with the urethane groups of the WPU hard segment by inducing the separation of the semicrystalline soft segment, they were aggregated in the WPU matrix. Accordingly, the glass transition temperature of the WPU matrix decreased with BT content, but the melting temperature increased. As the BT content increased in the nanocomposite films, the thermal decomposition temperature of the WPU soft segment showed a slight decrease, while the decomposition temperature of the hard segment increased. Additionally, the residue at 600°C increased significantly from 2.0% for neat WPU film to 36.3% for the nanocomposite film containing 40 wt% BT. The piezoelectric outputs attained by the nanocomposite films increased with BT content. Under compressive stress of 23 kPa, the nanocomposite film containing 40 wt% BT was able to achieve the highest piezoelectric voltage of ~0.51 V, a current of ~43.0 nA, and an electric power of ~21.9 nW. For the nanocomposite film, a linear relationship between the piezoelectric out voltage and the applied compressive stress with a slope of ~0.0253 was also observed.Highlights Anionic waterborne polyurethane (WPU) with hard/soft segments is synthesized. Barium titanate (BT) nanoparticles are adopted as a piezoelectric nanofiller. WPU/BT nanocomposites are manufactured by dispersion casting and hot pressing. Specific interactions between BT nanoparticles and WPU hard segments exist. Piezoelectric outputs of nanocomposites increase with BT content and stress.

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Influence of Poling Conditions on Properties of BaTiO₃ Single Crystal

Cited by 18 publications

References 11 publications

Electric field dependence of piezoelectric properties for rhombohedral 0.955Pb(Zn1/3Nb2/3)O3– 0.045PbTiO3 single crystals

Electric field dependence of piezoelectric properties for rhombohedral 0.955Pb(Zn1/3Nb2/3)O3– 0.045PbTiO3 single crystals

Surface potential of BaTiO3single crystal near the Curie temperature

Piezoelectric nanocomposite films based on anionic waterborne polyurethane and barium titanate nanoparticle: Fabrication, microstructure, and property characterization

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Influence of Poling Conditions on Properties of BaTiO3 Single Crystal

Cited by 18 publications

References 11 publications

Electric field dependence of piezoelectric properties for rhombohedral 0.955Pb(Zn1/3Nb2/3)O3– 0.045PbTiO3 single crystals

Electric field dependence of piezoelectric properties for rhombohedral 0.955Pb(Zn1/3Nb2/3)O3– 0.045PbTiO3 single crystals

Surface potential of BaTiO3single crystal near the Curie temperature

Piezoelectric nanocomposite films based on anionic waterborne polyurethane and barium titanate nanoparticle: Fabrication, microstructure, and property characterization

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Influence of Poling Conditions on Properties of BaTiO₃ Single Crystal