Study of dielectric behavior of ternary composites of epoxy-barium titanate with iron oxide and ferrite in the band (DC-12.5 GHz)

Arab, Tarek; Khouni, Habib; Bouzit, Nacerdine; Jiménez, Juan Pablo Martínez

doi:10.1080/24701556.2021.2019767

Cited by 7 publications

(12 citation statements)

References 24 publications

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“…This increasing in the dielectric permittivity indicated the same effect of this perovskite titanate BaTiO 3 compared to what has been obtained in previous works [22][23][24][25][26][27][28][29][30]37,38 on other various binary, ternary and quaternary composites containing perovskite titanates such as calcium and strontium titanate.…”

Section: Resultssupporting

confidence: 85%

Dielectric Characterization of Heterogeneous Composites Using Time Domain Spectroscopy and Microwave Test Benches in Microwave Frequency

Djouada¹,

Bouzit²,

Delfouf³

et al. 2023

ECS J. Solid State Sci. Technol.

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Dielectric composite materials made of polymers and ferroelectric ceramics have recently emerged as one of the important components for applications involving the generation, transformation, and storage of sustainable energy. Because there is a trade-off between dielectric permittivity, dielectric loss, and dissipation factor, the end use is the energy storage capacity. In the present study, epoxy resin (RE)/barium titanate (BaTiO3) composite samples are prepared using the mixture cast method with new molds. The dielectric properties, such as dielectric permittivity, dielectric loss, electrical modulus, static conductivity and dissipation factors due to the concentration of barium titanate and frequency effect on the composites, are examined using two characterization methods. The objective of this study is to determine the dielectric permittivity of the material using two microwave methods, the first is time domain spectroscopy (TDS) and the second is on the X-band microwave test bench (MTB). Additionally, different empirical mixture laws are used to estimate the dielectric permittivity of our composites. It is found that an increase in filler concentration (BaTiO3) increases the effective dielectric permittivity, which is confirmed with different empirical mixture models. The findings of this research can be used for electrical devices, including sensors, wave absorbers, resonators, and antennas.

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Section: Resultssupporting

confidence: 85%

Dielectric Characterization of Heterogeneous Composites Using Time Domain Spectroscopy and Microwave Test Benches in Microwave Frequency

Djouada¹,

Bouzit²,

Delfouf³

et al. 2023

ECS J. Solid State Sci. Technol.

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“…Also, one can point out that similar percolation behavior was seen with various composites RE-BT-FE/ FR in Ref. 25, and the percolation threshold was determined to be as follows (Vth = 24,8% BT for RE-BT-FE composite, and Vth = 26,6% BT for RE-BT-FR composite).…”

Section: Resultsmentioning

confidence: 52%

“…To transfer this data into the frequency domain, which can then be used to extract the pertinent parameters, appropriate mathematical techniques are applied. 24,25 Depending on the characteristics of the material to be characterized, the examination of the reflection coefficient will subsequently enable the determination of the appropriate electromagnetic parameters. After the discrete Fourier transform (DFT) of the incident and reflected signals of the sample of this material, the variations of the complex permittivity as a function of frequency are discovered.…”

Section: Methodsmentioning

confidence: 99%

“…The proportions achieved by weighing and transformed into a volume fraction to apply the effective mixture laws. 25,26 Table I lists the designation and composition of the samples.…”

Section: Methodsmentioning

confidence: 99%

“…The nonlinear regression method (generalized reduced gradient (GRG) Algorithm) fixes this factor to a second order polynomial by virtue of its nonlinear evolution with respect to the volume fractions of each constituent, ensuring a minimum difference between the experimental data and the theoretical values resulting from the effective dielectric permittivity and effective magnetic permeability of the material under investigation as well as an acceptable level of optimization. We attempted to advance the study of multiphase composites in this work by characterizing and investigating the dielectric and magnetic behaviours of these composite materials in one research, since the previous works 19,[21][22][23][24][25][26][27][28][29] only looked at the dielectric behavior. Additionally, the effect of additives (ST/BT, FE/FR) was added to similar multiphase mixtures in order to calculate their contribution and to compare the improvement in dielectric and electrical properties achieved by these additives with different other mixtures.…”

mentioning

confidence: 99%

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Investigation on Dielectric, Electric, and Magnetic Properties of (Epoxy Resin-Titanate-Oxide/Ferrite) Ternary Composites at Microwave Frequency

Arab

Delfouf

Khouni

et al. 2023

ECS J. Solid State Sci. Technol.

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The RE-ST-FE and RE-BT-FE/FR composites have been prepared and characterized using time domain spectroscopy method in the [DC-12.5] GHz range. The dielectric, magnetic, and electrical properties of the ternary composites have been investigated. In the RE-ST-FE composite, the dielectric permittivity (ε’) has been found to decrease from 9.25 to 3.70 with increase in FE concentration. While it has been observed that the electrical conductivity increases as the ST concentration increases reaching a value of 11.6 (mS / m) and shows a percolation behavior with (Vth = 26,9% ST). In the RE-BT-FE/FR composites, the magnetization hysteresis loops have been measured by vibrating sample magnetometer from -3 to +3 kOe. This has made it possible to have a maximum of saturation magnetization equal 29.3 emu/g and the permeability value close to 1.9 with the RE-BT-FR composite which is considered higher than that of the other one. It was found that an increase in the (FE/FR) concentration increases the magnetic permeability, which is confirmed by the modified Lichtenecker law with error ratio less than 0.5%. The results of this study will undoubtedly yield new materials that can be used to miniaturize electronic components used in telecommunications systems, resonators, antennas and wave absorbers.

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Characterization of Binary Composite Made of Epoxy Resin and Barium Titanate in High Frequency Range

Daoud

Bourouba

Brahimi

et al. 2022

2022 International Conference of Advanced Technology in Electronic and Electrical Engineering (ICATEEE)

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Study of dielectric behavior of ternary composites of epoxy-barium titanate with iron oxide and ferrite in the band (DC-12.5 GHz)

Cited by 7 publications

References 24 publications

Dielectric Characterization of Heterogeneous Composites Using Time Domain Spectroscopy and Microwave Test Benches in Microwave Frequency

Dielectric Characterization of Heterogeneous Composites Using Time Domain Spectroscopy and Microwave Test Benches in Microwave Frequency

Investigation on Dielectric, Electric, and Magnetic Properties of (Epoxy Resin-Titanate-Oxide/Ferrite) Ternary Composites at Microwave Frequency

Characterization of Binary Composite Made of Epoxy Resin and Barium Titanate in High Frequency Range

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