Piezoelectric properties and temperature stabilities of Mn- and Cu-modified BiFeO3–BaTiO3 high temperature ceramics

Yang, Huabin; Zhou, Changrong; Liu, Xinyu; Zhou, Qin; Chen, Guohua; Li, Weizhou; Wang, Hua

doi:10.1016/j.jeurceramsoc.2012.11.019

Cited by 167 publications

(64 citation statements)

References 22 publications

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“…[ 46 ] The fi lled circles are the data obtained in the present study. The d 33 value of our 0.67BF-0.33BT ceramic (BF33BT FC) fabricated with a conventional furnacecooling process was less than 200 pC N −1 .…”

Section: Communicationmentioning

confidence: 73%

“…[38][39][40][41][42][43][44][45] Empty diamond = BFBT ceramic. [ 46 ] b) The ε (symbols) and tanδ (lines) of BF33BT and ternary ceramics versus temperature on heating runs. c) The k p of BF33BT and ternary ceramics versus temperature.…”

Section: Communicationmentioning

confidence: 99%

“…The d 33 value of our 0.67BF-0.33BT ceramic (BF33BT FC) fabricated with a conventional furnacecooling process was less than 200 pC N −1 . [ 46 ] However, by using a water-quenching process (BF33BT in Figure 1 The T C values of the BF33BT and ternary ceramics were determined from the peak temperature of their temperaturedependent dielectric constant, ε ( T ) curves. Figure 1 b shows ε ( T ) and the dielectric loss, tan δ ( T ), as functions of temperature.…”

Section: Communicationmentioning

confidence: 99%

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High‐Performance Lead‐Free Piezoceramics with High Curie Temperatures

et al. 2015

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A bismuth ferrite and barium titanate solid solution compound can achieve good piezoelectric properties with a high Curie temperature when fabricated with low-temperature sintering followed by a water-quenching process, with no complicated grain alignment processes performed. By adding the super-tetragonal bismuth gallium oxide to the compound, the piezoelectric properties are as good as those of lead zirconate titanate ceramics.

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Section: Communicationmentioning

confidence: 73%

Section: Communicationmentioning

confidence: 99%

Section: Communicationmentioning

confidence: 99%

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High‐Performance Lead‐Free Piezoceramics with High Curie Temperatures

et al. 2015

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“…during the sintering process[35] and thus creates oxygen vacancies. These oxygen vacancies are responsible for the reduction of dielectric properties in BFO.…”

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confidence: 99%

Magnetic, Dielectric and Complex Impedance Properties of xBa0.95Sr0.05TiO3–(1 − x)BiFe0.9Gd0.1O3 Multiferroic Ceramics

Miah

Hossain

2016

Acta Metall. Sin. (Engl. Lett.)

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xBa 0.95 Sr 0.05 TiO 3 -(1 -x)BiFe 0.9 Gd 0.1 O 3 [xBST-(1 -x)BFGO] (x = 0.00, 0.10, 0.20 and 0.25) multiferroic ceramics were prepared by the standard solid-state reaction technique. Structural characterization was performed by X-ray diffraction. All the samples showed rhombohedral distorted perovskite structure. Surface morphology of the ceramics was studied by the field emission scanning electron microscope (FESEM). From the FESEM observation, the grain size was observed to be decreased with increasing BST content. Enhanced magnetic properties were observed in BFGO with the increase in BST content because of large lattice distortion. The complex initial permeability increased with the increasing of BST content. The study of dielectric properties showed that the dielectric constant increased, whereas dielectric loss decreased with increasing of BST content due to the reduction of oxygen vacancies. An analysis of the electric impedance and modulus with frequency was performed at different temperatures. Non-Debye-type relaxation processes occur in the compound which was confirmed from the nature of the Cole-Cole plot. The DC conductivity was found to increase with the rise in temperature which indicates the semiconducting behavior of the compound with characteristics of the negative temperature coefficient of resistance. The activation energy, responsible for the relaxation determined from the modulus spectra (0.246 eV), was found to be almost same as the value obtained from the impedance study (0.240 eV), indicating that charge carriers overcome the same energy barrier during relaxation. The frequency response of imaginary parts of electric impedance and modulus suggested that the relaxation in xBST-(1 -x)BFGO ceramics follows the same mechanism at various temperatures.

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“…According to the previous reports [18][19][20], MnO 2 is added to improve the resistivity of the ceramics.…”

Section: Introductionmentioning

confidence: 99%

Improved ferroelectricity and ferromagnetism of Eu-modified BiFeO3–BaTiO3 lead-free multiferroic ceramics

Tian

Zhou

Zou

et al. 2015

J Mater Sci: Mater Electron

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Multiferroic ceramics of 0.75Bi 1-x Eu x FeO 3 -0.25BaTiO 3 ? 1 mol% MnO 2 were synthesized by a conventional solid state reaction method and the effects of Eu doping on microstructure, ferroelectric, ferromagnetic and piezoelectric properties of the ceramics were investigated. All the ceramics exhibit a pure perovskite structure without any secondary phases. After the addition of Eu 3? ions, the crystal structure of the ceramics is transformed from rhombohedral to tetragonal phase at x = 0.025. The ferroelectricity and ferromagnetism of the ceramics are improved. For the ceramic with x = 0.025, the optimum remanent polarization of 18.3 lC/cm 2 and good piezoelectricity of 82 pC/N are obtained. The saturated magnetization M s and remanent magnetism M r of the ceramics are improved by 165 and 141 % with x increasing from 0 to 0.175, respectively.

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Piezoelectric properties and temperature stabilities of Mn- and Cu-modified BiFeO3–BaTiO3 high temperature ceramics

Cited by 167 publications

References 22 publications

High‐Performance Lead‐Free Piezoceramics with High Curie Temperatures

High‐Performance Lead‐Free Piezoceramics with High Curie Temperatures

Magnetic, Dielectric and Complex Impedance Properties of xBa0.95Sr0.05TiO3–(1 − x)BiFe0.9Gd0.1O3 Multiferroic Ceramics

Improved ferroelectricity and ferromagnetism of Eu-modified BiFeO3–BaTiO3 lead-free multiferroic ceramics

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