Modeling the Electric and Dielectric Behaviors of the Gebel Kamil Iron Meteorite
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Published:2022-01-28
Issue:1
Volume:31
Page:179-189
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ISSN:1520-7439
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Container-title:Natural Resources Research
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language:en
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Short-container-title:Nat Resour Res
Abstract
AbstractThe 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.
Funder
National Research Center
Publisher
Springer Science and Business Media LLC
Subject
General Environmental Science
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