Structural, dielectric and ferroelectric properties of Ba1−x(Bi0.5Na0.5)xTiO3 ceramics

Rawat, Meera; Yadav, K. L.

doi:10.1016/j.ceramint.2012.10.191

Cited by 47 publications

(12 citation statements)

References 27 publications

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“…ing a non-Debye type relaxation with multiple relaxation time. In addition, the value of Z decreased by orders of magnitude with rise in temperature, which confirmed the negative temperature coefficient of resistance (NTCR) behavior similar to that of semiconductors [24,29]. It was a process caused by thermally activated charge carrier [30].The complex impedance spectra of NN modified BNT-BT ceramics are displayed in Fig.…”

Section: Tablesupporting

confidence: 74%

Electrical properties and relaxation behavior of Bi0.5Na0.5TiO3-BaTiO3 ceramics modified with NaNbO3

Lanagan

Luo

et al. 2016

Journal of the European Ceramic Society

115

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Section: Tablesupporting

confidence: 74%

Electrical properties and relaxation behavior of Bi0.5Na0.5TiO3-BaTiO3 ceramics modified with NaNbO3

Lanagan

Luo

et al. 2016

Journal of the European Ceramic Society

115

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“…But there were few reports that relate to the addition of the third number into BT to enhance the insulating property in BF‐BT ceramics. BNT ceramic is a representative perovskite ferroelectric material with excellent ferroelectric property ( P r = 38 μC/cm 2 ) and high T C of 320°C . It was found that the resistivity of BT can be significantly increased by two orders of magnitude after adding BNT .…”

Section: Introductionmentioning

confidence: 99%

Enhanced insulating and piezoelectric properties of BiFeO₃‐BaTiO₃‐Bi_0.5Na_0.5TiO₃ ceramics with high Curie temperature

et al. 2019

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BiFeO3‐BaTiO3 ceramics are promising lead‐free piezoelectric ceramics due to their high piezoelectric properties and high Curie temperature, but their high leakage current density makes the poling difficult. In this study, a decreased leakage current density by three orders of magnitude was obtained in Bi0.5Na0.5TiO3 (BNT) added 0.67BiFeO3‐0.33BaTiO3 (BF‐BT) ceramics. It was found that the largely improved insulating properties benefit from the reduced oxygen vacancies and weak reduction of Fe3+ to Fe2+ as confirmed by photoluminescence and X‐ray photoelectron spectroscopy measurements, thereby contributing to high‐temperature and high‐field poling. In addition, the introduction of BNT leaded to increased grain size. Due to the grown grains as well as reduced oxygen vacancies and Fe2+, enhanced insulating and optimal piezoelectric properties with Pr = 24.2 µC/cm2, d33 = 183 pC/N, kp = 0.28, and TC = 467°C were achieved in BF‐BT‐0.05BNT ceramics.

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“…Bi 0.5 Na 0.5 TiO 3 (BNTO) is a lead-free rhombohedral perovskite-type ferroelectric materials with Curie temperature T c =320°C. It can form solid solutions with other perovskite-type materials such as BiFeO 3 , BaTiO 3 [6,7]. Nevertheless, systematic study on BNTO formed solid solution with the spinel-type materials is still lacking.…”

Section: Introductionmentioning

confidence: 99%

Studies on room temperature multiferroic properties of xBi0.5Na0.5TiO3-(1-x)NiFe2O4 ceramics

et al. 2015

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Multiferroic ceramics xBi 0.5 Na 0.5 TiO 3 -(1-x-)NiFe 2 O 4 (x=0-1) have been prepared by a sol-gel method. Crystal structures were investigated by X-ray diffraction. The results show the samples are pure phases and increasing Bi 0.5 Na 0.5 TiO 3 content induces a gradual phase transformation from spinel to perovskite structure. Scanning electron microscopy micrographs also present the size and structure of the samples. Results from energy dispersive spectrometer confirm the stoichiometry of the compound. Both of the data are proved to agree with the results of X-ray diffraction. All of the samples display the evident ferromagnetic properties at 300 K and the saturation magnetization almost linearly varies with the increasing of x. The room temperature polarizationelectric field loops were examined. Compared with pure NiFe 2 O 4 , superior ferroelectric properties are obtained with increasing maximum of polarization as the content of Bi 0.5 Na 0.5 TiO 3 increases. Dielectric properties were also studied. The dielectric constant is proved to increase as Bi 0.5 Na 0.5 TiO 3 content increases at room temperature and the dielectric loss decreases as Bi 0.5 Na 0.5 TiO 3 doped in NiFe 2 O 4 . In addition, some of samples exhibit the effect of magnetoelectric coupling.

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Structural, dielectric and ferroelectric properties of Ba1−x(Bi0.5Na0.5)xTiO3 ceramics

Cited by 47 publications

References 27 publications

Electrical properties and relaxation behavior of Bi0.5Na0.5TiO3-BaTiO3 ceramics modified with NaNbO3

Electrical properties and relaxation behavior of Bi0.5Na0.5TiO3-BaTiO3 ceramics modified with NaNbO3

Enhanced insulating and piezoelectric properties of BiFeO₃‐BaTiO₃‐Bi_0.5Na_0.5TiO₃ ceramics with high Curie temperature

Studies on room temperature multiferroic properties of xBi0.5Na0.5TiO3-(1-x)NiFe2O4 ceramics

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Structural, dielectric and ferroelectric properties of Ba1−x(Bi0.5Na0.5)xTiO3 ceramics

Cited by 47 publications

References 27 publications

Electrical properties and relaxation behavior of Bi0.5Na0.5TiO3-BaTiO3 ceramics modified with NaNbO3

Electrical properties and relaxation behavior of Bi0.5Na0.5TiO3-BaTiO3 ceramics modified with NaNbO3

Enhanced insulating and piezoelectric properties of BiFeO3‐BaTiO3‐Bi0.5Na0.5TiO3 ceramics with high Curie temperature

Studies on room temperature multiferroic properties of xBi0.5Na0.5TiO3-(1-x)NiFe2O4 ceramics

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Enhanced insulating and piezoelectric properties of BiFeO₃‐BaTiO₃‐Bi_0.5Na_0.5TiO₃ ceramics with high Curie temperature