Investigation of Dielectric, Impedance and Conductivity Properties of 0.65Bi(Fe0.98Ga0.02)O3–0.35BaTiO3

Hajra, Sugato; Sahu, Manisha; Purohit, Varsa; Kumar, Ajeet; Panigrahi, Romit; Sitikantha, Debashis; Choudhary, R. N. P.

doi:10.1007/s40995-020-00929-w

Cited by 3 publications

(4 citation statements)

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“…117 Several articles have reported the Curie temperature of undoped BTO−BFO is 531 °C. 75,94 The Curie temperature of BTO−BFO also changed with a different ratio of BTO/BFO. Figure 26 shows the movement of the Curie temperature with different molar ratios of BTO/BFO ceramics.…”

Section: Bto−bfomentioning

confidence: 99%

“…Also, during the sintering of BFO ceramic, Fe 3+ will be reduced into Fe 2+ (4Fe 3+ + 2O 2 – → 4Fe 2+ + O 2 ( g )) and released oxygen. The nonstoichiometric ratio and valence fluctuation of Fe ion also contribute to the leakage current. ,,− These problems restricted the application of it. Many attempts, the partial substitution (such as La, Nb, Mn) and the formation of solid solutions with other materials (such as BTO, PbTiO 3 ), have been made to solve this problem. ,, Some impurities often appeared in the product of annealing.…”

Section: Bfomentioning

confidence: 99%

“…According to the results of Figure , although BFO and BTO have been studied for many years, they still are noted as unique. Many researchers studied the monodoped in BTO–BFO ceramics, such as Eu 3+ , Co 3+ , Cr 3+ , Cu 2+ , Ni 2+ , Mn 2+ , Al 3+ , La 2+ , Ce 2+ , Nd 3+ , Gd 3+ , Dy 3+ , Ga 3+ , and Er 3+ . ,− The doping of these ions could improve the ferroelectricity of BTO–BFO ceramics. The multiphase solid-state solution could also promote the electrical properties of BTO–BFO ceramics, like La 0.7 Sr 0.3 MnO 3 , Na 0.5 Bi 0.5 TiO 3 , BiMeO 3 (Me = Al, Ga, Sc, Y, Mg 2/3 Nb 1/3 , Zn 2/3 Nb 1/3 , Zn 1/2 Ti 1/2 ), CaSnO 3 , etc. ,− …”

Section: Bto–bfomentioning

confidence: 99%

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A Review of a Good Binary Ferroelectric Ceramic: BaTiO₃–BiFeO₃

Meng

Tang

et al. 2021

ACS Appl. Electron. Mater.

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Barium titanate (BaTiO3) and Bismuth ferrite (BiFeO3) have been investigated for many years. Both of them have good electrical properties in the application of industries such as flexible displays, actuators, transducers, flexible memory, multilayer ceramic capacitors, etc. Moreover, BiFeO3 is a room temperature multiferroic material that adds a halo to it. Although there are some shortcomings compared with some properties of lead-based ceramics, environmental friendly materials will be the future trend. The solid solution of BaTiO3 and BiFeO3 exactly meets this requirement. There are many reports related to it, but there are few systemic articles focused on it. So, this review recalls the progress of binary ferroelectric material: BaTiO3–BiFeO3 ceramic, especially in the field of ferroelectric, piezoelectric, energy-storage properties. Furthermore, the preparation approaches to functional ceramics are also illustrated here. Finally, we deliver a summary of this material.

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Section: Bto−bfomentioning

confidence: 99%

Section: Bfomentioning

confidence: 99%

Section: Bto–bfomentioning

confidence: 99%

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A Review of a Good Binary Ferroelectric Ceramic: BaTiO₃–BiFeO₃

Meng

Tang

et al. 2021

ACS Appl. Electron. Mater.

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“…Hybridization between Bi-6p and O-2p orbitals in BFO is responsible for large polarization and piezoelectric response [43]. Due to the large extension of the 6s orbitals, the overlap of the 6-p orbitals of the cation and anion decreases, as a result, bond strength decrease.…”

Section: Bismuth Ferrite (Bifeo 3 )mentioning

confidence: 99%

Lead-Free BiFeO3–BaTiO3 Ceramics: An Overview

Kumar

Dhillon

Panwar

et al. 2021

Engineering Materials

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Multiferroic materials based on BiFeO 3 show properties like ferroelectricity and ferromagnetism at the same time. Inclination towards materials that are environment friendly, overcomes the problems related to lead-based materials. BiFeO 3 -BaTiO 3 binary system entirely takes the charge over lead enrich materials. The binary system of BaTiO 3 and BiFeO 3 consists of lead-free materials having characteristic properties like high piezoelectric coefficient, high Curie temperature, and the existence of morphotropic phase boundary (MPB). The studies were carried on the BiFeO 3 -BaTiO 3 multiferroic system from the last decade. BiFeO 3 -BaTiO 3 system exhibits outstanding electrical applications in devices such as actuators, multilayer capacitors, flexible display, and memory devices. The present chapter discusses some basics of multiferroics, specially BiFeO 3 ceramic, misfortune related to BiFeO 3 and BiFeO 3 -BaTiO 3 binary systems are addressed.

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