Observation of multiferroic character with the correlation of dielectric and optical study in Ho3+ substituted Bi4Ti2FeO12 Aurivillius ceramic

Sekhar, K. S. K. R. Chandra; Rao, S. Raghupati; Rayaprol, Sudhindra; Babu, P. D.; Tirupathi, Patri

doi:10.1007/s00339-022-06058-y

Cited by 2 publications

(1 citation statement)

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“…Figure 3 shows that the calculated curves are in good agreement with the experimental curves. The weighted profile factor (R wp ) and the goodness of fit (GOF) for BTCT2 are 6.67% and 1.75, and those for BTCT3 are 5.69% and 1.42, respectively, which indicates that the refinement ions along with a relative motion at the A-site [37,38], and no obvious shifts can be observed in this area, indicating that the Cr/Ta substitution has almost no effect on the Bi 3+ vibration. The modes in the region of 200-600 cm −1 correspond to the stretching and torsion vibration modes of Ti-O bending.…”

Section: Resultsmentioning

confidence: 99%

Enhanced piezoelectric performance of Cr/Ta non-equivalent co-doped Bi ₄Ti ₃O ₁₂-based high-temperature piezoceramics

Chen,

Ma,

et al. 2024

Journal of Advanced Ceramics

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In this study, (Cr 1/3 /Ta 2/3 ) non-equivalent co-doped Bi 4 Ti 3 O 12 (BIT) ceramics were prepared to solve the problem that high piezoelectric performance, high Curie temperature, and high-temperature resistivity could not be achieved simultaneously in BIT-based ceramics. A series of Bi 4 Ti 3−x (Cr 1/3 Ta 2/3 ) x O 12 (x = 0-0.04) ceramics were synthesized by the solid-state reaction method. The phase structure, microstructure, piezoelectric performance, and conductive mechanism of the samples were systematically investigated. The B-site non-equivalent co-doping strategy combining high-valence Ta 5+ and low-valence Cr 3+ significantly enhances electrical properties due to a decrease in oxygen vacancy concentration. Bi 4 Ti 2.97 (Cr 1/3 Ta 2/3 ) 0.03 O 12 ceramics exhibit a high piezoelectric coefficient (d 33 = 26 pC•N −1 ) and a high Curie temperature (T C = 687 ℃). Moreover, the significantly increased resistivity (ρ = 2.8×10 6 Ω•cm at 500 ℃) and good piezoelectric stability up to 600 ℃ are also obtained for this composition. All the results demonstrate that Cr/Ta co-doped BIT-based ceramics have great potential to be applied in high-temperature piezoelectric applications.

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Section: Resultsmentioning

confidence: 99%

Enhanced piezoelectric performance of Cr/Ta non-equivalent co-doped Bi ₄Ti ₃O ₁₂-based high-temperature piezoceramics

Chen,

Ma,

et al. 2024

Journal of Advanced Ceramics

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Effect of Ce infusion on the structural, dielectric, optical, transport and polarization behavior of Nd-modified triple-layered Aurivillius phase ceramic Bi3NdTi3O12

Sahoo,

Choudhary

2024

Ceramics International

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Observation of multiferroic character with the correlation of dielectric and optical study in Ho3+ substituted Bi4Ti2FeO12 Aurivillius ceramic

Cited by 2 publications

References 40 publications

Enhanced piezoelectric performance of Cr/Ta non-equivalent co-doped Bi ₄Ti ₃O ₁₂-based high-temperature piezoceramics

Enhanced piezoelectric performance of Cr/Ta non-equivalent co-doped Bi ₄Ti ₃O ₁₂-based high-temperature piezoceramics

Effect of Ce infusion on the structural, dielectric, optical, transport and polarization behavior of Nd-modified triple-layered Aurivillius phase ceramic Bi3NdTi3O12

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Observation of multiferroic character with the correlation of dielectric and optical study in Ho3+ substituted Bi4Ti2FeO12 Aurivillius ceramic

Cited by 2 publications

References 40 publications

Enhanced piezoelectric performance of Cr/Ta non-equivalent co-doped Bi 4Ti 3O 12-based high-temperature piezoceramics

Enhanced piezoelectric performance of Cr/Ta non-equivalent co-doped Bi 4Ti 3O 12-based high-temperature piezoceramics

Effect of Ce infusion on the structural, dielectric, optical, transport and polarization behavior of Nd-modified triple-layered Aurivillius phase ceramic Bi3NdTi3O12

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Product

Resources

About

Enhanced piezoelectric performance of Cr/Ta non-equivalent co-doped Bi ₄Ti ₃O ₁₂-based high-temperature piezoceramics

Enhanced piezoelectric performance of Cr/Ta non-equivalent co-doped Bi ₄Ti ₃O ₁₂-based high-temperature piezoceramics