Composition and poling condition-induced electrical behavior of (Ba0.85Ca0.15)(Ti1−xZrx)O3 lead-free piezoelectric ceramics

Wu, Jiagang; Xiao, Dingquan; Wu, Wenjuan; Chen, Qiang; Zhu, Jianguo; Yang, Z.; Wang, John

doi:10.1016/j.jeurceramsoc.2011.11.003

Cited by 201 publications

(84 citation statements)

References 33 publications

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“…317 At room temperature it was demonstrated that 4 kV/mm lead to saturation of the poling degree given by angle. 314 Considerable aging was observed after 10 4 min of the poling procedure leading to a 25 % decay of 33 and in dry atmosphere and 30 % decay in wet conditions. 352 Ehmke et al 328 realized that an electric field 20 times larger than leads to 50 % increase of small signal 33 and asymmetry on the large signal strain.…”

Section: Electromechanical Propertiesmentioning

confidence: 99%

“…Specifically, it was shown that reversible domain switching is maximized at the O to T phase boundary, leading to a contribution that accounts even up to 50 % of the total 33 response at room temperature. 323 322 Small and large signal electromechanical properties of BZT-BCT are highly susceptible to poling conditions 314,324,328,351,352 , stress 326,330 , and temperature variations. 194,320,325 Electromechanical properties were found to have local maxima values around phase boundaries, followed by diminished properties.…”

Section: Electromechanical Propertiesmentioning

confidence: 99%

“…Poling conditions were selected based on results from Wu et al 314 Moreover, 33 was always tested in a commercial Berlincourt meter (YE2730, Sinocera Inc., China) before performing further measurements in other setups.…”

Section: Small Signal Propertiesmentioning

confidence: 99%

“…Grain size varies nonmonotonically between (20 ± 3) μm for BZT-0.32BCT and (36 ± 9) μm for BZT-0.45BCT, which is comparable to previous reports. 314 Hao et al 200 reported that samples with relative densities above 94 % and grain sizes higher than 20 μm feature stable functional properties. Therefore, the deviations of the relative density and grain size are not expected to influence the functional properties considerably and will not be discussed further.…”

Section: Microstructure Characterizationmentioning

confidence: 99%

“…150 Literature reports have indicated that generally the properties of the R phase are much more susceptible to temperature and poling treatments. 317,325,328 Although is commonly associated with the degree of poling 314,[397][398][399] , a word of caution is warranted near phase boundaries. As depicted in Figure 5.9 (a), the values above discerned for x < 0.40 (with the exception of BZT-0.37BCT) are between 5° to 12° higher than the values below .…”

Section: Temperature-and Frequency-dependent Dielectric Propertiesmentioning

confidence: 99%

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Strain Mechanisms in Lead-Free Ferroelectrics for Actuators

Acosta

2016

Springer Theses

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Section: Electromechanical Propertiesmentioning

confidence: 99%

Section: Electromechanical Propertiesmentioning

confidence: 99%

Section: Small Signal Propertiesmentioning

confidence: 99%

Section: Microstructure Characterizationmentioning

confidence: 99%

Section: Temperature-and Frequency-dependent Dielectric Propertiesmentioning

confidence: 99%

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Strain Mechanisms in Lead-Free Ferroelectrics for Actuators

Acosta

2016

Springer Theses

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Phase structure, dielectric, and piezoelectric properties of (K_0.94−xNa_xLi_0.06)(Nb_0.94Sb_0.06)O₃ lead‐free ceramics

Lin

Zheng

et al. 2012

Physica Status Solidi (a)

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Lead‐free piezoelectric ceramics (K0.94−xNaxLi0.06)(Nb0.94Sb0.06)O3 have been fabricated by a conventional ceramic technique and the effects of K+/Na+ ratio on the structure and piezoelectric properties of the ceramics have been studied. All the ceramics possess a pure perovskite structure. The coexistence of tetragonal and orthorhombic phases is formed at room temperature in the ceramics with 0.45 ≤ x ≤ 0.55. The tetragonal–orthorhombic phase‐transition temperature TO–T decreases from 110 to 54 °C with x increasing from 0.35 to 0.55 and then increases from 84 to 144 °C with x further increasing from 0.6 to 0.7, while the Curie temperature TC deceases from 388 to 348 °C with x increasing from 0.35 to 0.70. Because of the coexistence of the two phases near room temperature, the ceramics with x = 0.50 exhibit the optimum piezoelectric properties: d33 = 230 pC/N and kp = 49%. The ceramics possess good time stability of piezoelectric properties.

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Phase Ratio, Dielectric, Ferroelectric, and Magnetic Properties of BCTZ Ceramics with CuO Doping Synthesized by the Solid State Combustion Technique

Yotthuan

Kornphom²,

Prasertpalichat

et al. 2019

Physica Status Solidi (a)

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This work investigates the effect of CuO doping (0-1.0 wt%) on the phase formation, microstructure, electric, and magnetic properties of (Ba 0.85 Ca 0.15 ) (Ti 0.90 Zr 0.10 )O 3 (BCTZ) ceramics. These samples are fabricated by the solid state combustion technique using glycine as fuel. The powders and ceramics are calcined and sintered at 1050 and 1450 C, respectively, for 2 h. The coexistence of the orthorhombic and tetragonal phases is observed in all samples. Increasing the amount of CuO doping enhances orthorhombicity, as verified by the Rietveld refinement technique. The orthorhombic and tetragonal phases are close to equal in the 0.4 wt% CuO doped sample. The grain size continuously increases as more CuO is added up to 0.4 wt% and then the size decreases due to the accumulation of excessive CuO at the grain boundaries. The density, dielectric constant, and ferroelectric properties tend to be enhanced when the CuO doping increase from 0 to 0.4 wt%, then they start to degrade. By increasing the CuO concentration from 0 to 0.8 wt%, the ceramics exhibit diamagnetic behavior. A ferromagnetic hysteresis loop is observed in the ceramic with 1.0 wt% CuO doping when measured at a temperature of 50 K.

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Composition and poling condition-induced electrical behavior of (Ba0.85Ca0.15)(Ti1−xZrx)O3 lead-free piezoelectric ceramics

Cited by 201 publications

References 33 publications

Strain Mechanisms in Lead-Free Ferroelectrics for Actuators

Strain Mechanisms in Lead-Free Ferroelectrics for Actuators

Phase structure, dielectric, and piezoelectric properties of (K_0.94−xNa_xLi_0.06)(Nb_0.94Sb_0.06)O₃ lead‐free ceramics

Phase Ratio, Dielectric, Ferroelectric, and Magnetic Properties of BCTZ Ceramics with CuO Doping Synthesized by the Solid State Combustion Technique

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Composition and poling condition-induced electrical behavior of (Ba0.85Ca0.15)(Ti1−xZrx)O3 lead-free piezoelectric ceramics

Cited by 201 publications

References 33 publications

Strain Mechanisms in Lead-Free Ferroelectrics for Actuators

Strain Mechanisms in Lead-Free Ferroelectrics for Actuators

Phase structure, dielectric, and piezoelectric properties of (K0.94−xNaxLi0.06)(Nb0.94Sb0.06)O3 lead‐free ceramics

Phase Ratio, Dielectric, Ferroelectric, and Magnetic Properties of BCTZ Ceramics with CuO Doping Synthesized by the Solid State Combustion Technique

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Phase structure, dielectric, and piezoelectric properties of (K_0.94−xNa_xLi_0.06)(Nb_0.94Sb_0.06)O₃ lead‐free ceramics