Structural and dielectric studies of excessive Bi3+ containing perovskite PZT and pyrochlore biphasic ceramics

Babu, T. Anil; Ramesh, K. V.; Reddy, ‬V. Raghavendra; Sastry, D.L.

doi:10.1016/j.mseb.2017.11.023

Cited by 10 publications

(3 citation statements)

References 24 publications

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“…Composite materials composed of a flexible polymer matrix and high‐dielectric ceramic fillers are promising and effective alternatives for new generation PCBs instead of conventional counterparts 6 . The production of polymeric composites based on ceramics such as lead magnesium niobate–lead titanate (PMN–PT), 7–9 calcium barium zirconate titanate (BCZT), 10 lead titanate based (PSTM), 11 lead‐magnezium‐niobate (PMN), 12 and lead zirconium titanate (PZT) 13,14 have been reported in the literature. However, in both academia and industry the application of lead‐based capacitors have been limited due to their known hazardous and toxic effects.…”

Section: Introductionmentioning

confidence: 99%

“…Many of the studies in the literature consist of 0–3 type composites that were fabricated using different techniques. Although the dielectric permittivities of thermoplastic polymers range between only 2 and 5, they are very attractive candidates for 0–3 composites due to being easy to process and their widespread availability and relatively low cost 13,23 . The dielectric properties of composites depend on parameters such as permittivity and electrical conductivity of both phases as well as size, volume fraction, and the extent of ceramic filler dispersion and distribution in the polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

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Dielectric performance of composites of BaTiO₃ and polymers for capacitor applications under microwave frequency

Baştürk

Dancer

McNally

2021

J of Applied Polymer Sci

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Composites of nano‐sized barium titanate (BaTiO3) with volume fractions up to 0.5 and poly(butylene terephthalate) (PBT) or linear low‐density polyethylene (LLDPE) were made via extrusion. Scanning electron microscopy demonstrated that BaTiO3 is well dispersed in the polymer matrices. The crystalline content (DSC) and thermal stability (TGA) of both polymers decreased with increasing BaTiO3 loading. Dielectric properties of the composites were measured using a vector network analyzer. Both dielectric permittivity and tangent loss increased with increasing BaTiO3 content. At 2.45 GHz, the dielectric permittivity for 48 vol% BaTiO3‐filled LLDPE and 43 vol% BaTiO3‐filled PBT was 25 and 21.2, respectively. There was a good fit between the Lichtenecker model and experimental data obtained up to a certain value, with the permittivity variations being dependent on volume fraction. The improved dielectric performance achieved on inclusion of BaTiO3 confirms both composite systems as potential candidates for microwave frequency capacitor applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dielectric performance of composites of BaTiO₃ and polymers for capacitor applications under microwave frequency

Baştürk

Dancer

McNally

2021

J of Applied Polymer Sci

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“…The dielectric analysis gives information regarding the dielectric constant from which two electrical characteristics; the insulating nature and the conductive nature of the materials can be understood [21]. The dielectric constant of the ring-type PZT ceramics according to the forming pressure and the heating rate is shown in Table 3.…”

Section: Dielectric Property Analysismentioning

confidence: 99%

Performance Improvement of Ring-Type PZT Ceramics for Ultrasonic Dispersion System

et al. 2020

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This study has been based on the examination of the characterization of ring-type lead zirconate titanate (PZT) ceramics for high-intensity focused ultrasonic dispersion system. The ring-type PZT ceramics were fabricated by the powder molding method. The mechanical properties, dielectric constant, and microstructure of the ceramics were investigated. Consequently, the density of the ceramics was increased with increasing forming pressure while the density of ceramics that were sintered at 1350 °C was decreased due to over-sintering. Furthermore, the mechanical properties were excellent at the higher forming pressure. The dielectric property of the ring-type PZT ceramics was not clearly influenced by the manufacturing and sintering conditions. The abnormal grain growth of the ceramics, however, could be prevented by a lower heating rate in addition to reducing the porosity.

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Magnetoelectric properties of multiferroic ceramic composites

Bochenek,

Niemiec,

Chrobak

et al. 2023

Appl. Phys. A

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The paper analyzes the influence of hard and soft admixture on the functional properties of multiferroic ceramic composites. Two composite materials via solid-state reaction route were obtained. PZT-type materials (with hard or soft admixture) were selected as the ferroelectric component (90%), and nickel–zinc ferrite as the magnetic component (10%). The influence of the doping type (soft and hard admixture of the ferroelectric composite component) on multiferroic composites’ dielectric, ferroelectric, electromechanical, magnetic, and magnetoelectric properties were analyzed. Microstructural studies revealed the microstructure of composites with the correct distribution of the magnetic component in the ferroelectric matrix, suitable for maintaining both the ferroelectric and magnetic properties of composite materials. Research has shown that using a ferroelectric component as the PZT (from the morphotropic region and doped with the ferroelectrically soft niobium admixture) shows many advantages, positively influencing the functional properties of the multiferroic composite. It ensures effective polarization of the composite sample, obtaining a high magnetoelectric effect, which is required in sensors or magnetoelectric converters. PZT with a hard admixture shows higher stability of physical parameters, but its characteristic property also hinders the effective polarization of the composite sample.

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Structural and dielectric studies of excessive Bi3+ containing perovskite PZT and pyrochlore biphasic ceramics

Cited by 10 publications

References 24 publications

Dielectric performance of composites of BaTiO₃ and polymers for capacitor applications under microwave frequency

Dielectric performance of composites of BaTiO₃ and polymers for capacitor applications under microwave frequency

Performance Improvement of Ring-Type PZT Ceramics for Ultrasonic Dispersion System

Magnetoelectric properties of multiferroic ceramic composites

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Structural and dielectric studies of excessive Bi3+ containing perovskite PZT and pyrochlore biphasic ceramics

Cited by 10 publications

References 24 publications

Dielectric performance of composites of BaTiO3 and polymers for capacitor applications under microwave frequency

Dielectric performance of composites of BaTiO3 and polymers for capacitor applications under microwave frequency

Performance Improvement of Ring-Type PZT Ceramics for Ultrasonic Dispersion System

Magnetoelectric properties of multiferroic ceramic composites

Contact Info

Product

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Dielectric performance of composites of BaTiO₃ and polymers for capacitor applications under microwave frequency

Dielectric performance of composites of BaTiO₃ and polymers for capacitor applications under microwave frequency