Field induced strain response of lead-free BaZrO3-modified Bi0.5Na0.5TiO3–BaTiO3 ceramics

Rahman, Jamil Ur; Hussain, Ali; Maqbool, Adnan; Ryu, G. H.; Song, Tae Kwon; Kim, Won-Jeong; Kim, Myong Ho

doi:10.1016/j.jallcom.2014.01.031

Cited by 77 publications

(18 citation statements)

References 34 publications

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“…Moreover, a slight and low shift of the peak is observed by increasing BaTiO3, this can be justified by the ionic radii (rBi 3+ = 1.45 Å) and (rNa + = 1.39 Å), which are smaller than (rBa 2+ = 1.61 Å) [23]. Similar changes were also observed by other researchers also [24][25][26].…”

Section: Resultssupporting

confidence: 84%

Investigation of Morphotropic Phase Boundary by Rietveld Refinement and Raman Spectroscopy for (1-x)(Na0.5Bi0.5)TiO3-xBaTiO3 Ceramics

Mesrar¹,

Lamcharfi²,

Echatoui³

et al. 2018

Asian J. Chem.

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In this paper, the structural properties of (1-x)(Na0.5Bi0.5)TiO3-xBaTiO3 ceramic system for (x = 0.00, 0.03, 0.05, 0.06, 0.07, 0.08 and 0.1) were studied. Moreover, the samples are obtained through the conventional solid-state method. The effect of calcination temperature ranging from 800 to 1000 ºC was investigated, using X-ray diffraction data and Rietveld refinement method, which permit to verify the morphotropic phase boundary at x = 0.05-0.07. The Raman spectral data were examined by inspecting the changes in their respective peak positions, full width at half maximum (FWHM) and intensities by increasing BaTiO3 composition. It was found that morphotropic phase boundary in the studied system resides at composition of x = 0.05. The analysis of both Rietveld refinement and Raman spectroscopy of the samples showed a distortion of Na0.5Bi0.5TiO3 lattice when Ba 2+ ions were added, as well as the ceramic structures underwent a gradual distortion by increasing the composition fraction of BaTiO3.

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Section: Resultssupporting

confidence: 84%

Investigation of Morphotropic Phase Boundary by Rietveld Refinement and Raman Spectroscopy for (1-x)(Na0.5Bi0.5)TiO3-xBaTiO3 Ceramics

Mesrar¹,

Lamcharfi²,

Echatoui³

et al. 2018

Asian J. Chem.

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“…Pure BNT is difficult for poling because of its large coercive field ( E c = 73 kV/cm) and high conductivity . To improve electrical properties, a number of BNT‐based ceramics have been studied extensively, such as BNT‐BaTiO 3 , BNT‐BaTiO 3 ‐BaZrO 3 , BNT‐BaTiO 3 ‐Er 2 O 3 , BNT‐BaTiO 3 ‐K 0.5 Na 0.5 Nb 0.5 , BNT‐Bi 0.5 K 0.5 TiO 3 , BNT‐Bi 0.5 K 0.5 TiO 3 ‐BiAlO 3 , BNT‐Bi 0.5 K 0.5 TiO 3 ‐K 0.5 Na 0.5 NbO 3 , BNT‐MnO 2 , BNT‐SrTiO 3 , and so on. Among them, (1− x )BNT‐ x BaTiO 3 ‐based ceramics show a rhombohedral–tetragonal morphotropic phase boundary at x = 0.06–0.07 and demonstrate improved electrical properties …”

Section: Introductionmentioning

confidence: 99%

Microstructure and Electrical Properties of Nonstoichiometric 0.94(Na_0.5Bi_0.5+x)TiO₃–0.06BaTiO₃Lead‐Free Ceramics

et al. 2015

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0.94(Na0.5Bi0.5+x)TiO3–0.06BaTiO3 (x = −0.04, 0, 0.02; named NB0.46T‐6BT, NB0.50T‐6BT, NB0.52T‐6BT, respectively) lead‐free piezoelectric ceramics were prepared via the solid‐state reaction method. Effects of Bi3+ nonstoichiometry on microstructure, dielectric, ferroelectric, and piezoelectric properties were studied. All ceramics show typical X‐ray diffraction peaks of ABO3 perovskite structure. The lattice parameters increase with the increase in the Bi3+ content. The electron probe microanalysis demonstrates that the excess Bi2O3 in the starting composition can compensate the Bi2O3 loss induced during sample processing. The size and shape of grains are closely related to the Bi3+ content. For the unpoled NB0.50T‐6BT and NB0.52T‐6BT, there are two dielectric anomalies in the dielectric constant–temperature curves. The unpoled NB0.46T‐6BT shows one dielectric anomaly accompanied by high dielectric constant and dielectric loss at low frequencies. After poling, a new dielectric anomaly appears around depolarization temperature (Td) for all ceramics and the Td values increase with the Bi3+ amount decreasing from excess to deficiency. The diffuse phase transition character was studied via the Curie–Weiss law and modified Curie–Weiss law. The activation energy values obtained via the impedance analysis are 0.69, 1.05, and 1.16 eV for NB0.46T‐6BT, NB0.50T‐6BT and NB0.52T‐6BT, respectively, implying the change in oxygen vacancy concentration in the ceramics. The piezoelectric constant, polarization, and coercive field of the ceramics change with the variation in the Bi3+ content. The Rayleigh analysis suggests that the change in electrical properties of the ceramics with the variation in the Bi3+ amount is related to the effect of oxygen vacancies.

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“…Several researchers have attempted to lower this E th and improve the electric field-induced strain (EFIS) response [17][18][19][20][21][22][28][29][30][31][32][33][34][35][36]. Doping of impurities, either on the A-or Bsites of the ABO 3 perovskite structure, has been found as an effective method to enhance EFIS [19,[25][26][27][28].…”

Section: Introduction Q3mentioning

confidence: 99%

Evolution of phase structure and giant strain at low driving fields in Bi-based lead-free incipient piezoelectrics

Maqbool

Hussain

Malik

et al. 2015

Materials Science and Engineering: B

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Field induced strain response of lead-free BaZrO3-modified Bi0.5Na0.5TiO3–BaTiO3 ceramics

Cited by 77 publications

References 34 publications

Investigation of Morphotropic Phase Boundary by Rietveld Refinement and Raman Spectroscopy for (1-x)(Na0.5Bi0.5)TiO3-xBaTiO3 Ceramics

Investigation of Morphotropic Phase Boundary by Rietveld Refinement and Raman Spectroscopy for (1-x)(Na0.5Bi0.5)TiO3-xBaTiO3 Ceramics

Microstructure and Electrical Properties of Nonstoichiometric 0.94(Na_0.5Bi_0.5+x)TiO₃–0.06BaTiO₃Lead‐Free Ceramics

Evolution of phase structure and giant strain at low driving fields in Bi-based lead-free incipient piezoelectrics

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Field induced strain response of lead-free BaZrO3-modified Bi0.5Na0.5TiO3–BaTiO3 ceramics

Cited by 77 publications

References 34 publications

Investigation of Morphotropic Phase Boundary by Rietveld Refinement and Raman Spectroscopy for (1-x)(Na0.5Bi0.5)TiO3-xBaTiO3 Ceramics

Investigation of Morphotropic Phase Boundary by Rietveld Refinement and Raman Spectroscopy for (1-x)(Na0.5Bi0.5)TiO3-xBaTiO3 Ceramics

Microstructure and Electrical Properties of Nonstoichiometric 0.94(Na0.5Bi0.5+x)TiO3–0.06BaTiO3Lead‐Free Ceramics

Evolution of phase structure and giant strain at low driving fields in Bi-based lead-free incipient piezoelectrics

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Microstructure and Electrical Properties of Nonstoichiometric 0.94(Na_0.5Bi_0.5+x)TiO₃–0.06BaTiO₃Lead‐Free Ceramics