Dielectric Properties of Basaltic Glass and Glass-Ceramics: Modeling and Applications as Insulators and Semiconductors

Khater, G.A.; Nabawy, Bassem S.; Kang, Jian; Mahmoud, M. A.

doi:10.1007/s12633-018-9963-4

Cited by 19 publications

(8 citation statements)

References 24 publications

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“…At higher frequencies (> 3.0 MHz), the dipole rotation and the molecular mobility become faster and more complex than those at lower frequencies, and so the e¢ decreases rapidly to very few fractions (0.013). This explanation is consistent with that of Li et al (2009) and Khater et al (2019), whereby they attributed the steep decrease in e¢ values to much lower values at higher f to the inability of the dipole rotation speed to follow the rotation speed of the applied AC. Mathematical modeling the e¢ of the Gebel Kamil meteorite as a function of f enables its estimation by using a set of high-reliability models (R 2 of > 0.987) as shown in Figure 3.…”

Section: Dielectric Constant (E¢)supporting

confidence: 88%

“…A slight decrease in the measured e¢ was noticed with increasing f (cf. Khater et al, 2019Khater et al, , 2020. In contrast, the decrease in measured e¢ of the Gebel Kamil meteorite was much steeper (from 1.19 at 50 Hz to 0.013 at 11.0 MHz) compared to that of many other porous materials.…”

Section: Dielectric Constant (E¢)mentioning

confidence: 81%

“…This charged energy is a function of f; it increases with increasing f (Nabawy & Rochette, 2016). Nabawy and Rochette (2016;Khater et al, 2019Khater et al, , 2020 studied the electric resistivity of some meteorites and prepared Fe-Ni alloys and assigned two main stages: pre-saturation lowfrequency stage (mostly less than 1.0 kHz) and saturation high-frequency stage (higher than 1.0 kHz). They added that the electric behavior of the solid material is a diagnostic behavior related primarily to its chemical and internal structure.…”

Section: Nabawy Electric and Dielectric Behavior Of The Studied Meteoritementioning

confidence: 99%

“…2). These peaks may be explained by the Maxwell-Wagner polarization mechanism, where a separation of charged ions occurs, i.e., ions become freer to rotate with increasing f causing more contribution to r (Kremer and Schonhals, 2003;Nabawy, 2018;Khater et al, 2019).…”

Section: Electric Conductivity (R)mentioning

confidence: 99%

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Modeling the Electric and Dielectric Behaviors of the Gebel Kamil Iron Meteorite

Nabawy

2022

Nat Resour Res

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The Gebel Kamil iron meteorite is a famous big meteorite, and it is considered among the rare well-preserved iron meteorites. In this study, its electric and dielectric properties, namely electric conductivity (σ), dielectric constant (ε′), and dielectric loss (ε″), were measured using alternating current at a wide range of frequencies (50 Hz–11.0 MHz). This electrical characterization process was performed to get a diagnostic electric behavior of the electric and dielectric parameters as a function of the applied frequency (f). It is revealed that, by increasing f, the σ increased, while the dielectric properties decreased systematically through three stages of frequency. The well-known octahedral structure of iron meteorites was imaged using scanning electron microscopy (SEM) with support by energy-dispersive X-ray analysis (EDAX) to analyze the chemical composition of the meteorite specimen. The EDAX indicated that the Gebel Kamil meteorite is a Ni–Fe alloy with no impurities (Ni = 20.4–22.3%, Fe = 77.7–79.6%). This chemical composition and the electric and dielectric behaviors of the studied Ni-rich Gebel Kamil meteorite specimen can be recorded as diagnostic features and properties of this Fe–Ni meteorite.

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Section: Dielectric Constant (E¢)supporting

confidence: 88%

Section: Dielectric Constant (E¢)mentioning

confidence: 81%

Section: Nabawy Electric and Dielectric Behavior Of The Studied Meteoritementioning

confidence: 99%

Section: Electric Conductivity (R)mentioning

confidence: 99%

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Modeling the Electric and Dielectric Behaviors of the Gebel Kamil Iron Meteorite

Nabawy

2022

Nat Resour Res

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“…In general, the dielectric properties of glass bers can be suggested through measuring its amorphous glass blocks without crystallization [12]. Similarly, the dielectric properties of basalt ber can also be obtained through evaluating the properties of amorphous basaltic glass [13]. So the preparation of amorphous basaltic glass is the key to get the dielectric properties of its basalt ber.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Dielectric Properties of the Amorphous Basaltic Glass

Liu

Tong

Yang

et al. 2021

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Due to the continuous basalt ber is a kind of amorphous material, only the basaltic glass without crystallization can represent its dielectric properties. To explore the dielectric properties of the continuous basalt ber, amorphous basaltic glass must be prepared. The present research focuses on the in uence of chemical component on the preparation process of the amorphous basaltic glass and its dielectric properties. The basaltic rocks from different places of China were melted at 1500℃, then the melt was poured into the mould, at last glass sample was annealed at 650℃ for 2h. Ten groups of basaltic rocks were studied, and the results showed that the melt viscosity of basaltic rocks with 55-58% SiO 2 was poor at 1500℃. The high-content of Fe 2 O 3 and TiO 2 in basaltic rocks was found to enhance the formation of magnetite (Fe 3 O 4 ) crystal during the annealing process. The other ve groups of basaltic rocks were suit to the amorphous basaltic glass. At 1MHz, the best dielectric constant of amorphous basaltic glass is 6.55, the dielectric loss is 4.034×10 -3 .

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Influence of phosphorus pentoxide on structural, dielectric, and mechanical properties of borosilicate glasses for sealant applications

et al. 2023

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Dielectric Properties of Basaltic Glass and Glass-Ceramics: Modeling and Applications as Insulators and Semiconductors

Cited by 19 publications

References 24 publications

Modeling the Electric and Dielectric Behaviors of the Gebel Kamil Iron Meteorite

Modeling the Electric and Dielectric Behaviors of the Gebel Kamil Iron Meteorite

Preparation and Dielectric Properties of the Amorphous Basaltic Glass

Influence of phosphorus pentoxide on structural, dielectric, and mechanical properties of borosilicate glasses for sealant applications

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