Magnetic and Electrical Properties of Glass and Glass-Ceramics Based on Weathered Basalt

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

doi:10.1007/s12633-020-00391-8

Cited by 21 publications

(7 citation statements)

References 18 publications

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“…Based on the ε ’ values, the AFS samples can be grouped in descending order into two groups: group 1 (AFS8, AFS9, AFS7, AFS5, AFS6 samples) and group 2 (AFS3, AFS4, AFS1, AFS2 samples), as can be seen in Figure 8 . The dielectric constant decreased with increasing applied AC frequency, while electric conductivity increased dramatically with increasing AC frequency, a common behavior recorded by many authors [ 35 , 36 , 51 ]. Following Nabawy and Rochette [ 38 ], the increase in conductivity with increasing frequency passes through three stages: (A) a steady stage with negligible increase in σ , (B) a transitional stage, and (C) a last stage with a dramatic increase in σ ( Figure 9 ).…”

Section: Resultssupporting

confidence: 64%

“…Based on the σ classification of Khater et al [ 35 , 36 ], differentiation of σ values is difficult at low frequency values ( σ = 0.01–0.181 µS/cm, f < 1500 kHz, Figure 9 ) and refers to poor semiconductors (0.01–1.0 µS/cm, Khater et al [ 35 , 36 ]), whereas σ values are higher at high frequency values ( σ = 0.181–43.57 µS/cm, f ≥ 1500 kHz) referring to poor (0.01–1.0 µS/cm) to fair semiconductors (1.0–1000 µS/cm, Khater et al [ 35 , 36 ]). The measured electric and dielectric parameters are presented graphically as a function of the AC frequency in Figure 8 , Figure 9 and Figure 10 .…”

Section: Resultsmentioning

confidence: 99%

“…The increasing iron oxide content with increasing arc furnace slag percentages (from 1.6% for AFS1 to 7.04% for AFS9) reduces the possibility of this application by increasing electric activity. In addition, the presence of certain impurities in these samples increases their ability to conduct electric charges on the order of μS (Khater et al, 2019, 2020, Dimitrijev, 2011) [ 35 , 36 , 56 ].…”

Section: Resultsmentioning

confidence: 99%

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Use of Arc Furnace Slag and Ceramic Sludge for the Production of Lightweight and Highly Porous Ceramic Materials

et al. 2022

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The utility of recycling some intensive industries’ waste materials for producing cellular porous ceramic is the leading aim of this study. To achieve this purpose, ceramic samples were prepared utilizing both arc furnace slag (AFS) and ceramic sludge, without any addition of pure chemicals, at 1100 °C. A series of nine samples was prepared via increasing AFS percentage over sludge percentage by 10 wt.% intervals, reaching 10 wt.% sludge and 90 wt.% AFS contents in the ninth and last batch. The oxide constituents of waste materials were analyzed using XRF. All synthesized samples were investigated using XRD to detect the precipitated minerals. The developed phases were β-wollastonite, quartz, gehlenite, parawollastonite and fayalite. The formed crystalline phases were changed depending on the CaO/SiO2 ratio in the batch composition. Sample morphology was investigated via scanning electron microscope to identify the porosity of the prepared ceramics. Porosity, density and electrical properties were measured; it was found that all these properties were dependent on the composition of starting materials and formed phases. When increasing CaO and Al2O3 contents, porosity values increased, while increases in MgO and Fe2O3 caused a decrease in porosity and increases in dielectric constant and electric conductivity. Sintering of selected samples at different temperatures caused formation of two polymorphic structures of wollastonite, either β-wollastonite (unstable) or parawollastonite (stable). β-wollastonite transformed into parawollastonite at elevated temperatures. When increasing the sintering temperature to 1150 °C, a small amount of fayalite phase (Fe2SiO4) was formed. It was noticed that the dielectric measurements of the selected sintered samples at 1100 °C were lower than those recorded when sintering temperatures were 1050 °C or 1150 °C.

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Section: Resultssupporting

confidence: 64%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Use of Arc Furnace Slag and Ceramic Sludge for the Production of Lightweight and Highly Porous Ceramic Materials

et al. 2022

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“…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: 84%

“…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%

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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Structural and Mechanical Properties of Lithium Bismuth Borate Glasses Containing Molybdenum (LBBM) Together with their Glass–Ceramics

El‐Rehim

Shaaban

Zahran

et al. 2020

J Inorg Organomet Polym

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Magnetic and Electrical Properties of Glass and Glass-Ceramics Based on Weathered Basalt

Cited by 21 publications

References 18 publications

Use of Arc Furnace Slag and Ceramic Sludge for the Production of Lightweight and Highly Porous Ceramic Materials

Use of Arc Furnace Slag and Ceramic Sludge for the Production of Lightweight and Highly Porous Ceramic Materials

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

Structural and Mechanical Properties of Lithium Bismuth Borate Glasses Containing Molybdenum (LBBM) Together with their Glass–Ceramics

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