Structure refinement and impedance analysis of Ba0.85Ca0.15Zr0.10Ti0.90O3 ceramics sintered in air and nitrogen

Muhsen, Ku Noor Dhaniah Ku; Osman, Rozana Aina Maulat; Idris, Mohd Sobri

doi:10.1007/s10854-019-02433-3

Cited by 18 publications

(9 citation statements)

References 40 publications

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“…5. It was observed that an incomplete semicircle arc at high frequency region are shown for both samples which associated with the bulk response [11,12]. This result shows that the bulk effect has dominated the electrical response of the samples.…”

Section: Resultsmentioning

confidence: 70%

Enhanced Dielectric Properties of Ba0.85Sr0.15TiO3 Ceramic by 8% Zirconium Doping

Muhsen

Nasir

Osman

et al. 2022

Advances in Science and Technology

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The dielectric properties and crystal structure of Ba0.85Sr0.15TiO3 and Ba0.85Sr0.15Ti0.92Zr0.08O3 ceramics were studied. The samples were synthesized by using solid-state method. The results show that the samples were single phase. The Ba0.85Sr0.15TiO3 exhibited tetragonal structure (space group P4mm), while with addition of 8 mol% Zr into Ba0.85Sr0.15TiO3 it shows that the sample exhibited orthorhombic structure (space group Amm2). The dielectric constant value increased from 1094 for pure, up to 4211 for Ba0.85Sr0.15Ti0.92Zr0.08O3 ceramic at Tc measured at 1 kHz. The Tc decreased from 80 °C down to 60 °C as 8 mol% Zr ions doped into Ba0.85Sr0.15TiO3 composition. The Ba0.85Sr0.15Ti0.92Zr0.08O3 ceramic exhibited lower dielectric loss, tan δ about 0.006 compared to Ba0.85Sr0.15TiO3 ceramic (tan δ = 0.009) when measured at 110 °C with frequency 1 kHz. The slope at low frequency region in capacitance vs frequency plot for both samples attributed by the grain boundary effect, whereas the high frequency plateau associated with the bulk response. The impedance spectroscopy analysis results show that both samples are dominated by the bulk response when an incomplete semicircle arc was observed in Zʺ vs Zʹ plot.

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Section: Resultsmentioning

confidence: 70%

Enhanced Dielectric Properties of Ba0.85Sr0.15TiO3 Ceramic by 8% Zirconium Doping

Muhsen

Nasir

Osman

et al. 2022

Advances in Science and Technology

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“…32 This transition is attributed to the tetragonal to cubic structural change. 36 The dielectric anomaly was observed varying with the Ca doping (x), at the A-site, in the (Ba 1-x Ca x )(Zr 1-y Ti y )O 3 , (x = 0.140-0.160, y = 0.9) ceramics, as shown in Figs. 1-3.…”

Section: Resultsmentioning

confidence: 88%

“…43 Ba and Ca ions were located and shared at the same A-site (0,0,0), Ti and Zr ions were shared at B-site (½,½,½) and oxygen ions were located at the O-site (½,½,0), respectively. 36 Furthermore, the occupancies of Ba: Ca ions that…”

Section: Resultsmentioning

confidence: 99%

Temperature Dependent Dielectric and Structural Properties of (Ba_1-xCa_x)(Zr_0.1Ti_0.9)O₃, (0.140 ≤ x ≤ 0.160) Ceramics

Biswas¹,

Sharma²,

Panwar³

2022

ECS J. Solid State Sci. Technol.

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Ceramic pellets of (Ba1-xCax)(Zr1-yTiy)O3, (x = 0.140 to 0.160, y = 0.9), were prepared via solid- state reaction method followed by double sintering. Dielectric properties (ε, tan δ, and σ) of the prepared compositions were measured, in the temperature range from room temperature (RT) to 450°C, at various frequencies (12- 1000 kHz). The dielectric measurements show a single phase transition, at around 100°C, for the prepared (Ba1-xCax)(Zr1-yTiy)O3 (BCZT) compositions, in the measured temperature range. The structural variation was studied using high temperature X- ray diffraction (HT- XRD) measurements of the compositions with x = 0.150 and 0.155. The HT- XRD results were found consistent with the dielectric measurements, showing structural anomaly at around 100°C; showing tetragonal phase, between RT and around 100°C; and cubic phase, above 100°C, in the measured temperature range.

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“…76 The presence of non-Debye type relaxation or multiple relaxation times in materials can be due to several causes such as arbitrary grain size distribution and growth, different grain shapes and directions, or electromagnetic scattering effect. 66,73 In addition, to describe the electrical properties of the materials, an electrical circuit consisting of two branches in series is used to represent the specific electrical properties of grain boundaries and grains; this series combination of two circuits in parallel identifies the effect of grain boundaries and grains respectively. The first circuit assigned to the grains has resistance R g , capacitance C g , and the constant phase element CPE g , and the second circuit corresponding to the grain boundaries also has resistance R gb , capacitance C gb , and the constant phase element CPE gb respectively.…”

Section: Resultsmentioning

confidence: 99%

Structural, electrical, and dielectric study of the influence of 3.4% lanthanide (Ln³⁺ = Sm³⁺ and La³⁺) insertion in the A-site of perovskite Ba_0.95Ln_0.034Ti_0.99Zr_0.01O₃

et al. 2022

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Structure refinement and impedance analysis of Ba0.85Ca0.15Zr0.10Ti0.90O3 ceramics sintered in air and nitrogen

Cited by 18 publications

References 40 publications

Enhanced Dielectric Properties of Ba<sub>0.85</sub>Sr<sub>0.15</sub>TiO<sub>3</sub> Ceramic by 8% Zirconium Doping

Enhanced Dielectric Properties of Ba<sub>0.85</sub>Sr<sub>0.15</sub>TiO<sub>3</sub> Ceramic by 8% Zirconium Doping

Temperature Dependent Dielectric and Structural Properties of (Ba_1-xCa_x)(Zr_0.1Ti_0.9)O₃, (0.140 ≤ x ≤ 0.160) Ceramics

Structural, electrical, and dielectric study of the influence of 3.4% lanthanide (Ln³⁺ = Sm³⁺ and La³⁺) insertion in the A-site of perovskite Ba_0.95Ln_0.034Ti_0.99Zr_0.01O₃

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Structure refinement and impedance analysis of Ba0.85Ca0.15Zr0.10Ti0.90O3 ceramics sintered in air and nitrogen

Cited by 18 publications

References 40 publications

Enhanced Dielectric Properties of Ba<sub>0.85</sub>Sr<sub>0.15</sub>TiO<sub>3</sub> Ceramic by 8% Zirconium Doping

Enhanced Dielectric Properties of Ba<sub>0.85</sub>Sr<sub>0.15</sub>TiO<sub>3</sub> Ceramic by 8% Zirconium Doping

Temperature Dependent Dielectric and Structural Properties of (Ba1-xCax)(Zr0.1Ti0.9)O3, (0.140 ≤ x ≤ 0.160) Ceramics

Structural, electrical, and dielectric study of the influence of 3.4% lanthanide (Ln3+ = Sm3+ and La3+) insertion in the A-site of perovskite Ba0.95Ln0.034Ti0.99Zr0.01O3

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Temperature Dependent Dielectric and Structural Properties of (Ba_1-xCa_x)(Zr_0.1Ti_0.9)O₃, (0.140 ≤ x ≤ 0.160) Ceramics

Structural, electrical, and dielectric study of the influence of 3.4% lanthanide (Ln³⁺ = Sm³⁺ and La³⁺) insertion in the A-site of perovskite Ba_0.95Ln_0.034Ti_0.99Zr_0.01O₃