Structural and electrical properties of multiferroic (1−x)BiFeO3−xBi0.5K0.5TiO3 ceramics

Hussain, Ahmad; Zheng, Peng; Xu, Xijun; Chen, Xiaomin; Li, Tongle; Wang, Yiping; Yuan, Guoliang; Yin, Jiang; Liu, Zhiguo

doi:10.1016/j.jallcom.2016.03.272

Cited by 20 publications

(8 citation statements)

References 24 publications

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“…Moreover, lowest dielectric loss is observed for the CBT:30 wt%BFO composite with high density and less holes/cracks (Figure B). The poled composites deform and vibrate along thickness and radial directions at a 0.5 V AC voltage during dielectric measurements due to the piezoelectric d 33 and d 31 effect, respectively, which introduce impedance and dielectric anomalies . The radial and thickness dielectric resonances of CBT: x wt%BFO ( x =0‐40) composites with similar thickness and diameter are observable at ~250 kHz and ~4.2 MHz, respectively (Figure A,B).…”

Section: Resultsmentioning

confidence: 77%

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High‐temperature piezoelectric properties of 0‐3 type CaBi₄Ti₄O₁₅:x wt%BiFeO₃ composites

Hussain

Qaiser

et al. 2017

J Am Ceram Soc

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The 0-3 type CaBi 4 Ti 4 O 15 :30 wt%BiFeO 3 composite shows much better hightemperature piezoelectric properties than the single-phase CaBi 4 Ti 4 O 15 or BiFeO 3 ceramics. The composite with 0-3 type connectivity exhibits a high density of 7.01 g/cm 3 , a saturated polarization of 21.5 lC/cm 2 and an enhanced piezoelectric d 33 of 25 pC/N. After the poled composite was annealed at 600°C, its d 33 is 21 pC/N at room temperature. Resistance of the composite decreases slowly from 10 9 ohm at 20°C to~10 5 ohm at 500°C. Furthermore, the poled composite shows strong radial and thickness dielectric resonances at 20°C-500°C.

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Section: Resultsmentioning

confidence: 77%

“…Mixtures were milled, dried and pelletized into composites with 0.8 mm thickness under a hydrostatic pressure of 200 MPa. Finally, the composites were sintered at 650°C‐950°C for 1 hour with the heating/cooling rate of >50°C per minute …”

Section: Methodsmentioning

confidence: 99%

High‐temperature piezoelectric properties of 0‐3 type CaBi₄Ti₄O₁₅:x wt%BiFeO₃ composites

Hussain

Qaiser

et al. 2017

J Am Ceram Soc

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“…Despite its adaptability to a wide range of distinct applications, PZT contains a large portion of the hazardous lead, raising health and environmental concerns. Moreover, the Curie temperature (T C ) of lead-based materials is commonly below 400°C, which restricts its usage in high-temperature piezoelectric devices [7,8]. Globally in 2019, the estimated market value of piezoelectric devices was 25.1 billion dollars and is expected to boost up more with an annual rate of 6.2% within the coming 5 years [9].…”

Section: Introductionmentioning

confidence: 99%

“…Novel strain-driven morphotropic phase boundary (MPB) in highly strained BFO thin films, along with giant ferroelectric polarization of P S~1 00 μC/cm 2 in (1 1 1) oriented BFO thin films has been reported [20]. Pure BFO ceramic exhibits piezoelectric d 33 value higher than ~40 pC/N, but abundant electrons are excited to conduction band due to the low bandgap of ~2.8 eV and the corresponding low resistivity restricts the potential applications of BFO (>400°C) [8,21,22].…”

Section: Introductionmentioning

confidence: 99%

Stable piezoelectric response of 0-3 type CaBi₂Nb₂O₉:xwt%BiFeO₃ composites for high-temperature piezoelectric applications

Jabeen

Nawaz²,

Qaiser

et al. 2020

Journal of Asian Ceramic Societies

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Depolarization in the ceramic materials has remained the longstanding obstacle for the materials to be utilized in high-temperature piezoelectric devices. Herein, a strategy to defer thermal depolarization is employed. To acquire the best merits of two different materials, 0-3 type CaBi 2 Nb 2 O 9 :xwt%BiFeO 3 (CBN:xwt%BFO) composites are engineered in a unique way by embedding the isolated BiFeO 3 (BFO) grains at the grain boundaries of the CaBi 2 Nb 2 O 9 (CBN) matrix. The composite with 0-3 type connectivity (CaBi 2 Nb 2 O 9 :40wt%BiFeO 3 ) exhibits a high density of 7.98 g/cm 3 , a high saturated polarization of ~19 μC/cm 2 , high resistivity of ~10 10 Ω. cm, and an enhanced piezoelectric coefficient d 33 of 29 pC/N at room temperature. Composite shows the sharp-peaked ferroelectric-paraelectric transition at high Curie temperature T C of ~881°C. Importantly, the composite maintains a very high resistivity of ~10 5 Ω.cm even at 500° C and the d 33 of 24 pC/N after annealing at 700°C. Moreover, the poled composite has displayed strong radial and thickness dielectric resonances at 20-700°C. Concluding the results, the CBN:40 wt%BFO composite with 0-3 type connectivity shows the stable high-temperature piezoelectric response much better than either CBN or BFO and is the worthier candidate to be utilized in high-temperature piezoelectric devices.

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“…At present, introducing other stable ABO 3 perovskites (such as BaTiO 3 , SrTiO 3 , and Bi 0.5 Na 0.5 TiO 3 ) into BFO to form solid solution becomes an effective way to suppress the appearance of secondary impurity phase and also enhance the electrical properties [14][15][16]. Specially, the extensively studied BiFeO 3 -BaTiO 3 solid solutions have been considered as the most interesting and promising multiferroic system.…”

Section: Introductionmentioning

confidence: 99%

Multiferroic properties in Mn-modified 0.7BiFeO3-0.3(Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 ceramics

Hao

Jing

Chao

et al. 2016

Materials Research Bulletin

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The 0.7BiFeO 3-0.3(Ba 0.85 Ca 0.15)(Zr 0.1 Ti 0.9)O 3 + x wt.% MnO 2 (x = 0.0-0.7) multiferroic ceramics were fabricated by a solid state reaction method. Effects of Mn doping on phase structure, microstructure, dielectric, ferroelectric, and magnetic properties were systematically investigated. It was found that all ceramics showed pseudocubic phases. Dense microstructure along with perfect grains and clear grain boundaries were obtained in all ceramics. A relaxor behavior was observed in all ceramics and Mn doping could promote this behavior. In the case of Mn modifying, significantly lower dielectric loss values along with higher T c could be obtained compared with un-doped system. The lower leakage current density J values and relatively higher resistivity R values showed that better electric insulation was achieved by Mn modification. The optimal ferroelectric and magnetic properties were obtained at proper amount of Mn modification with x = 0.2-0.4.

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Structural and electrical properties of multiferroic (1−x)BiFeO3−xBi0.5K0.5TiO3 ceramics

Cited by 20 publications

References 24 publications

High‐temperature piezoelectric properties of 0‐3 type CaBi₄Ti₄O₁₅:x wt%BiFeO₃ composites

High‐temperature piezoelectric properties of 0‐3 type CaBi₄Ti₄O₁₅:x wt%BiFeO₃ composites

Stable piezoelectric response of 0-3 type CaBi₂Nb₂O₉:xwt%BiFeO₃ composites for high-temperature piezoelectric applications

Multiferroic properties in Mn-modified 0.7BiFeO3-0.3(Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 ceramics

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Structural and electrical properties of multiferroic (1−x)BiFeO3−xBi0.5K0.5TiO3 ceramics

Cited by 20 publications

References 24 publications

High‐temperature piezoelectric properties of 0‐3 type CaBi4Ti4O15:x wt%BiFeO3 composites

High‐temperature piezoelectric properties of 0‐3 type CaBi4Ti4O15:x wt%BiFeO3 composites

Stable piezoelectric response of 0-3 type CaBi2Nb2O9:xwt%BiFeO3 composites for high-temperature piezoelectric applications

Multiferroic properties in Mn-modified 0.7BiFeO3-0.3(Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 ceramics

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High‐temperature piezoelectric properties of 0‐3 type CaBi₄Ti₄O₁₅:x wt%BiFeO₃ composites

High‐temperature piezoelectric properties of 0‐3 type CaBi₄Ti₄O₁₅:x wt%BiFeO₃ composites

Stable piezoelectric response of 0-3 type CaBi₂Nb₂O₉:xwt%BiFeO₃ composites for high-temperature piezoelectric applications