Structural and electrical properties of double doped (Fe3+ and Ba2+) PZT electroceramics

Kumar, B. Praveen; Sangawar, S.R.; Kumar, H. H.

doi:10.1016/j.ceramint.2013.08.014

Cited by 12 publications

(4 citation statements)

References 26 publications

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“…But as Bi concentration increased, the grain sizes decreased. The possible explanation for this might be that a higher concentration of Bi 3+ ions near the grain boundaries may restrict the grain growth [19,20].…”

Section: Resultsmentioning

confidence: 99%

“…This phenomenon can be explained by the possibility that small Bi concentration might increase the c / a ratio of lattice and enhance the cubic degree, leading to higher transmittance. However, more Bi 3+ ions accumulated at the grain boundaries and restricted the grain growth with Bi concentration increasing further [20], and the severer light scattering from the more grain boundaries decreased the sample transmittance.…”

Section: Resultsmentioning

confidence: 99%

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Effects of Bi3+ Doping on the Optical and Electric-Induced Light Scattering Performance of PLZT (8.0/69/31) Transparent Ceramics

et al. 2019

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Lanthanum modified lead zirconate titanate (abbreviated as PLZT) Electro-Optical ceramics with various Bi concentration were prepared by a hot-press process. The PLZT ceramic samples all present a single perovskite structure with no second phase detected. Bi3+ ion was considered to mainly enter the A-site of perovskite ABO3 structure of PLZT ceramics by the X-Ray Diffractionanalysis. The maximum permittivity (εm) of the PLZT samples decreased obviously as Bi concentration increased, while their remnant polarization (Pr) decreased slightly. In particular, the PLZT sample with 0.14 wt% Bi doping presented a higher optical transmittance 61.8% (λ = 633 nm), and its electric-induced light scattering performance was found to be improved obviously, the maximum light deduction value of ~47.6% was obtained.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Effects of Bi3+ Doping on the Optical and Electric-Induced Light Scattering Performance of PLZT (8.0/69/31) Transparent Ceramics

et al. 2019

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“…The dopants can be classified into three categories [8,13], the isovalent dopants such as (Ba 2+ ) [14] and (Sr +2 ) [15], donor dopants (Sb +5 ) [16], and acceptor dopants (Al +3 ) [17], the category that attracts us is the isovalent dopants (Ba 2+ ) because of their effect on dielectric properties, where they can reduce the curie points and increase the dielectric constant [8], as well as avoiding the pyrochlore composition in perovskite structure [18]. This is what prompted some studies to investigate the barium impact substitution into PZT ceramics' dielectric properties [14,19,20]. Xiucai Wang et al [21] found that the Ba 2+ ion doping into PZT ceramics shows a very interesting effect on the dielectric properties and decreases the curie temperature from 85 to 48°C.…”

Section: Introductionmentioning

confidence: 99%

The effect of Barium substitution on the structural and dielectric properties of Pb1-XBaX(Zr0.52Ti0.43(Al0.5Sb0.5)0.05)O3 ceramics at the morphotropic phase boundary

Benmakhlouf¹,

Makhloufi²,

Boutarfaïa³

et al. 2023

JOR

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In this study PZT type ceramics with a general formula Pb1- xBax(Zr0.52Ti0.43(Al0.5Sb0.5)0.05)O3 where (x = 0.00, 0.04, and 0.08) were elaborated by the solid-state reaction and studied for their structural and dielectric properties in the region of the morphotropic phase boundary (MPB). Different techniques were used to characterize the obtained samples such as X-ray diffraction (XRD) which shows that the results confirm the high purity of prepared samples without any secondary phase and also indicate the coexistence of both the tetragonal and rhombohedral phases. All the absorption bands corresponding to the perovskite structure are exhibited by The Fourier Transform Infrared spectroscopy (FTIR). The scanning electronic microscopy (SEM) shows that the mean grain size was found between 2,84 and 2,14 µm, the Curie temperature (TC) decreased with increasing Ba2+ content. Furthermore, the effect of the temperature, frequency, and composition on the dielectric properties demonstrated a maximum value of the dielectric constant ε max = 38800 at 1 kHz when X= 0.08.

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“…Typical acceptor doping ions in PZT are K + or Na + on the A 2+ site (replacing Pb 2+ ) and Fe 3+ on the B 4+ site (substituting for Ti 4+ or Zr 4+ ). Their effect is opposite to that of donors [9,10] and are named "hard" dopants, while the obtained materials are usually called "hard materials".…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Sintering Temperature on the Properties of the 0.98Pb(Zr1-xTix)O3 - 0.02La(Fe3+0.5, Nb5+0.5)O3 Ceramic Systems

Dumitru

Velciu

Pătroi

et al. 2021

MSF

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The ferroelectric solid solutions described by a general formula 0.98Pb(Zr1-xTix)O3 – 0.02La(Fe3+0.5, Nb5+0.5)O3 have been obtained by solid state reaction technique, where x assumes the following values: 0.42, 0.48 and 0.58. The structure of these ferroelectric compositions has been investigated in detail using X-ray diffraction analysis (XRD) and Scanning Electron Microscopy (SEM). The results obtained by XRD have evidenced that all obtained samples have a perovskite structure. The influence of the sintering temperature on the degree of incorporation of the elements in the solid solution have been studied too. The dielectric and piezoelectric constants have been determined and the influence of temperature on obtained values are presented and discussed. The performed experimental results have pointed out that the materials are characterized by a high anisotropy. Furthermore, the obtained values of the electromechanical coupling factor (kp) is situated between 0.40÷0.65 depending on the composition and the sintering temperature too.

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Structural and electrical properties of double doped (Fe3+ and Ba2+) PZT electroceramics

Cited by 12 publications

References 26 publications

Effects of Bi3+ Doping on the Optical and Electric-Induced Light Scattering Performance of PLZT (8.0/69/31) Transparent Ceramics

Effects of Bi3+ Doping on the Optical and Electric-Induced Light Scattering Performance of PLZT (8.0/69/31) Transparent Ceramics

The effect of Barium substitution on the structural and dielectric properties of Pb1-XBaX(Zr0.52Ti0.43(Al0.5Sb0.5)0.05)O3 ceramics at the morphotropic phase boundary

The Influence of the Sintering Temperature on the Properties of the 0.98Pb(Zr<sub>1-x</sub>Ti<sub>x</sub>)O<sub>3</sub> - 0.02La(Fe<sup>3+</sup><sub>0.5</sub>, Nb<sup>5+</sup><sub>0.5</sub>)O<sub>3</sub> Ceramic Systems

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