Characterization of the electrical behaviour of rare earth elements during the upgrading of monazite

Abstract

Electrical properties of rare earth elements (REEs) in some geological materials were characterized during the upgrading of monazite from Egyptian black sand. It has been found that there was a significant relationship between concentrations of REEs and dc conductivity. Also, dielectric constant, dielectric loss, polarization, relaxation time and resonance frequency of samples containing REEs, were measured at a frequency range up to 1 MHz. From these measurements, it has been found that the values of electrical conductivity, resonance frequency and dielectric polarization are inversely proportional to the concentration of REEs. For most relations, the correlation coefficients were found to be better than 99%.

Gamma Irradiation Effect on the Thermal Stability, Optical and Electrical Properties of Acrylic Acid/ Methyl Methacrylate Copolymer Films

“…Measurements of the dielectric parameters of the samples have also been carried out, and the obtained results were used for evaluation of the dielectric constant (ε') and dielectric loss (ε"), applying the Debye's equations [R. M. Radwan et al, 2004]:…”