Effect of tantalum substitution on the structural and electrical properties of BaBi8Ti7O27 intergrowth ceramics

Jiang, Yujian; Jiang, Xiangping; Chen, Chao; Nie, Xin; Huang, Xiaokun; Jiang, Xi‐Fei; Zhuang, Junsheng; Zheng, Laiqi; Chen, Zilong

doi:10.1016/j.ceramint.2019.12.039

Cited by 19 publications

(3 citation statements)

References 32 publications

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“…They found that the Co-ion substitution in the phase of Fe (for B-site) has shown higher ferromagnetic and magnetoelectric properties [8]. In view of this, many researchers [21][22][23][24][25][26][27][28][29][30][31] are preparing Co/Fe-modified (at B-site) compounds, and therefore intergrowth route is considered to be an effective way to improve ferroic properties, especially in Aurivillius materials.…”

Section: Introductionmentioning

confidence: 99%

Magnetic and Magnetoelectric Properties of AurivilliusThree- and Four-Layered Intergrowth Ceramics

et al. 2023

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In this work, we have prepared intergrowth of multiferroic compounds namely Bi4RTi3Fe0.7Co0.3O15-Bi3RTi2Fe0.7Co0.3O12−δ (BRTFCO15-BRTFCO12) (rare earth (R) = Dy, Sm, La) by solid-state reaction method. From the X-ray diffraction Rietveld refinement, the structure of the intergrowths was found to be orthorhombic in which satisfactory fittings establish the existence of three-layered (space group: b 2 c b) and four-layered compounds (space group: A21am). Analysis of magnetic measurements confirmed a larger magnetization for theSm-modified intergrowth compound (BSTFCO15-BSTFCO12) compared to Dy- and La-doped ones. The emergence of higher magnetic properties can be due to distortion in the unit cell when some Bi3+ ions are replaced with the Sm3+, bonding of Fe3+-O-Co3+ as well as a possible mixture of FexCoy-type nanoparticles that are formed generally in the synthesis of intergrowths. The changes in the magnetic state of the Aurivillius intergrowths have been reflected in the magnetoelectric (ME) coupling: higher ME coefficient (~30 mV/Cm-Oe) at lower magnetic fields and is constant up to 3 kOe. The results were corroborated by Raman spectroscopy and variation of temperature with magnetization data. The results revealed that the RE-modified intergrowth route is an effective preparative method for higher-layer Aurivillius multiferroic ceramics.

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Section: Introductionmentioning

confidence: 99%

Magnetic and Magnetoelectric Properties of AurivilliusThree- and Four-Layered Intergrowth Ceramics

et al. 2023

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“…To improve the piezoelectric constant of BLSFs, the research on modification of BLSFs by synthesis techniques, ions doping and development of intergrowth structures have been highlighted by many researchers. There are many reports on the modification of BLSFs by constructing intergrowth structure, such as ions doped into intergrowth BLSFs (X. P. Jiang and Z. L. Jiang et al, 2020a;Jiang et al, 2020b) and component regulatory of intergrowth BLSFs (Kobayashi et al, 2004;B. Wu et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Kobayashi et al (2004) studied that the T c of the BBT-BiT (540°C) ceramics was between those of BiT (675°C) and BBT (410°C), and the value of spontaneous polarization ( P s = 52 μC/cm 2 ) was larger than those of BiT and BBT ceramics. Ta 5+ doped BBT-BiT intergrowth ceramics, the BaBi 8 (Ti 0.995 Ta 0.005 ) 7 O 27 showed an optimal piezoelectric performance with a d 33 of 19 pC/N of a T c about 475°C ( Jiang et al, 2020b ). And the introduction of (Li 0.5 Bi 0.5 ) 2+ ions into the BBT-BiT intergrowth ceramics increased the d 33 from 8 to 18.5 pC/N and T c from 480 to 633°C ( Jiang et al, 2020a ).…”

Section: Introductionmentioning

confidence: 99%

Influences of intergrowth structure construction on the structural and electrical properties of the BBT-BiT ceramics

Wang¹,

Zheng²,

Mao³

et al. 2022

Front. Chem.

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Bismuth Layer Structured Ferroelectrics (BLSFs) have always been an important research direction of high Curie temperature piezoelectrical ceramics, and the construction of intergrowth structure has been considered as an effective method to improve the electric properties of BLSFs. There are many literatures about intergrowth structure improving electrical performance, but few reports analyze the influence of the construction of intergrowth structure on the internal defects and electrical properties in BLSFs. In this study, (1-x) BaBi4Ti4O15 - x Bi4Ti3O12 ceramic samples with intergrowth bismuth layer structure were fabricated by a conventional solid-state reaction method, and the mechanism of the influence of intergrowth structure construction on the structure and electrical properties of BLSFs has been discussed. The crystal structure, phase composition, microstructure, dielectric and piezoelectric performance, relaxation behavior and AC conductivity of ceramic samples were systematically investigated. It has been found that the construction of intergrowth structure can significantly inhibit the generation of oxygen vacancies. The concentration of the oxygen vacancies plays an important role, and its reduction will lead to the inhibition of grain growth and the increase of the relaxation activation energy of ceramics. In addition, the intergrowth structure construction also affects the symmetry of ceramics in the c-axis direction, thus affecting the electrical properties of ceramics.

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Effects of the Bi3+ substitution on the structural, vibrational, and magnetic properties of bismuth layer-structured ferroelectrics

Silva

et al. 2020

Appl. Phys. A

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Effect of tantalum substitution on the structural and electrical properties of BaBi8Ti7O27 intergrowth ceramics

Cited by 19 publications

References 32 publications

Magnetic and Magnetoelectric Properties of AurivilliusThree- and Four-Layered Intergrowth Ceramics

Magnetic and Magnetoelectric Properties of AurivilliusThree- and Four-Layered Intergrowth Ceramics

Influences of intergrowth structure construction on the structural and electrical properties of the BBT-BiT ceramics

Effects of the Bi3+ substitution on the structural, vibrational, and magnetic properties of bismuth layer-structured ferroelectrics

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