Lead-free NaNbO3-based ferroelectric perovskites and their polar polymer-ceramic composites: Fundamentals and potentials for electronic and biomedical applications

Rosso, J. M.; Volnistem, Eduardo Azzolini; Santos, I. A.; Bonadio, T. G. M.; Freitas, V. F.

doi:10.1016/j.ceramint.2022.04.089

Cited by 16 publications

(3 citation statements)

References 142 publications

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“…36,55,56 As a result, the b-phase PVDF has the largest polarization strength and the highest piezoelectric corresponding performance. Based on the piezoelectric effect of PVDF, PVDF with different morphological structures has been studied and applied in energy storage, [57][58][59][60] biomedical, 61,62 filtration, [63][64][65][66] and other fields (Figure 2(c)). 67 The majority of PVDF polymers are in the a-phase under typical crystallization conditions; however, because this phase lacks polarity, PVDF with high a-phase content and its copolymers have relatively poor piezoelectric characteristics.…”

Section: Organic Polymer Pvdf Piezoelectric Materialsmentioning

confidence: 99%

Research progress of piezoelectric polymer PVDF in sound absorption technology

Li,

Zhao,

Liu

2024

Textile Research Journal

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Owing to its impedance properties and piezoelectric effect, the piezoelectric polymer polyvinylidene fluoride (PVDF) finds application in the field of noise control. Traditional sound-absorbing materials have gradually fallen short of the demands of sound-absorbing functionality and environmental adaptability in today’s increasingly acute noise pollution environment. When PVDF is added to sound absorption, materials or structures have an additional loss path for the conversion of sound energy to electric energy. This helps to increase the low-frequency sound absorption band and improve low-frequency sound absorption performance. Through the action of viscosity, friction, relaxation, piezoelectric effect, and dielectric loss, the sound energy in the passive sound-absorbing material containing PVDF is transformed into energy dissipation in the form of heat energy, electric energy, and so on under the matching of PVDF low impedance. In active control, secondary sound and force sources can be supplied by PVDF-based transducers and actuators to reduce noise. This paper first provides an overview of the piezoelectric characteristics of β-phase PVDF and its optimization techniques. It then goes on to discuss the use of PVDF in passive sound-absorbing materials, active controls, and hybrid sound absorption systems. Finally, it summarizes the benefits, issues that still need to be resolved, and future directions for these three noise reduction techniques.

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Section: Organic Polymer Pvdf Piezoelectric Materialsmentioning

confidence: 99%

Research progress of piezoelectric polymer PVDF in sound absorption technology

Li,

Zhao,

Liu

2024

Textile Research Journal

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“…Composite materials are among the most widely used materials in many practical applications, and their use is increasing in many industrial sectors, especially in the electronics industry [1]. These materials have better electromagnetic properties than their individual primary components, allowing them to perform many technical functions.…”

Section: Introductionmentioning

confidence: 99%

The effect of reinforcement of alumina matrix composites by ZrB₂ and FeSiAl inclusions on the dielectric property at microwave frequencies

Ouhassan,

Bri,

Habibi

2024

FME Transactions

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In this paper, two composites ZrB₂/Al₂O₃ and FeSiAl/Al₂O₃ were characterized using the Transmission/Reflection characterization technique. The volume contents of ZrB₂ and FeSiAl inclusions in these composites vary between 0 and 15%. The results obtained indicate that the percentage of the inclusions in the composites effectively improves the dielectric property. The comparison of the effect of ZrB₂ and FeSiAl inclusions on the dielectric properties of these composites confirms that reinforcing these composites with FeSiAl particles results in better dielectric properties. Furthermore, these results indicate that the dielectric property of the two composites studied decreases progressively with increasing frequency in the X band. This frequency dependence of the dielectric property of the composites studied is very important and shows that the composites studied are good candidates for microwave absorption applications in the X-band and for antenna design. Additionally, a comparison between the numerical results obtained in this work and the experimental results published in the literature reveals a close agreement, validating the reliability of the study's findings.

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“…The ABX 3 -type perovskite structural family, first described by Goldschmidt in 1926 [1], continues to be a fascinating class of materials that has garnered significant attention in the field of materials science and engineering. These materials are renowned for their broad spectrum of multifunctional properties, including ferroelectricity, piezoelectricity, pyroelectricity, ferromagnetism, and nonlinear dielectric characteristics [2][3][4][5][6]. Such diverse properties make them suitable for a variety of applications, encompassing energy conversion and storage, sensors, filters, separators, detectors, antennas, and environmental remediation [7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

High-Entropy Lead-Free Perovskite Bi0.2K0.2Ba0.2Sr0.2Ca0.2TiO3 Powders and Related Ceramics: Synthesis, Processing, and Electrical Properties

Surdu,

Marinică,

Pătru

et al. 2023

Nanomaterials

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A novel high-entropy perovskite powder with the composition Bi0.2K0.2Ba0.2Sr0.2Ca0.2TiO3 was successfully synthesized using a modified Pechini method. The precursor powder underwent characterization through Fourier Transform Infrared Spectroscopy and thermal analysis. The resultant Bi0.2K0.2Ba0.2Sr0.2Ca0.2TiO3 powder, obtained post-calcination at 900 °C, was further examined using a variety of techniques including X-ray diffraction, Raman spectroscopy, X-ray fluorescence, scanning electron microscopy, and transmission electron microscopy. Ceramic samples were fabricated by conventional sintering at various temperatures (900, 950, and 1000 °C). The structure, microstructure, and dielectric properties of these ceramics were subsequently analyzed and discussed. The ceramics exhibited a two-phase composition comprising cubic and tetragonal perovskites. The grain size was observed to increase from 35 to 50 nm, contingent on the sintering temperature. All ceramic samples demonstrated relaxor behavior with a dielectric maximum that became more flattened and shifted towards lower temperatures as the grain size decreased.

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Lead-free NaNbO3-based ferroelectric perovskites and their polar polymer-ceramic composites: Fundamentals and potentials for electronic and biomedical applications

Cited by 16 publications

References 142 publications

Research progress of piezoelectric polymer PVDF in sound absorption technology

Research progress of piezoelectric polymer PVDF in sound absorption technology

The effect of reinforcement of alumina matrix composites by ZrB₂ and FeSiAl inclusions on the dielectric property at microwave frequencies

High-Entropy Lead-Free Perovskite Bi0.2K0.2Ba0.2Sr0.2Ca0.2TiO3 Powders and Related Ceramics: Synthesis, Processing, and Electrical Properties

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