Published in Physica Scripta
This study investigates the effects of temperature exposure on the dielectric and electrical properties of Cs/HPC-copper vanadate nanocomposites. The results indicate a direct correlation between the increase in polymer surface roughness and the amount of incorporated copper vanadate nanoparticles. The real dielectric constant and imaginary dielect...
Published in Physica Scripta
Ferrite nanoparticles with the general formula Mg0.7Ni0.3BixFe2-xO4 (MNB) (0 ≤ x ≤ 0.1, Δx = 0.02) were prepared by the citrate combustion method. X-ray diffraction (XRD) results confirmed the spinel single-phase with crystallite size varied from 30.68 to 43.74 ± 0.01 nm. Scanning electron microscopes with elemental mapping conformed to the nano-na...
Published in Physica Scripta
The objective of this work is to create and analyze composites made of kenaf fibers and epoxy polymer, which are strengthened by the addition of Acacia concinna pod (ACP) powder. These composites are intended for use in electrical insulation applications. The study investigated the impact of alkali treatment using a 6% NaOH solution on kenaf fiber....
Published in Physics in Medicine & Biology
Objective. Aim of this work is to illustrate and experimentally validate a model to evaluate the dielectric properties of biological tissues on a wide frequency band using the magnetic resonance imaging (MRI) technique. Approach. The dielectric behaviour of biological tissues depends on frequency, according to the so-called relaxation mechanisms. T...
Published in Journal of Electrical Bioimpedance
Bioelectrical impedance techniques have been useful in various applications, including body composition analysis, impedance plethysmography, impedance cardiography, lung ventilation, perfusion, and tissue characterization. Electrical impedance methods have also been useful in characterizing different foods like meat, fruits, and beverages. However,...
Published in Physica Scripta
Polyvinyl alcohol (PVA)/Polyethylene glycol (PEG) (90:10 wt%) polymeric nanocomposite films were prepared via a simple casting technique with Rhodamine 110 chloride (Rh-110) dye for optoelectronics with various weight ratio percentages (0, 0.06, 0.1,0.2, 0.4, 0.6 1.25, 2 and 4.0 wt%) of Rh-110 doped PVA/PEG polymeric blend composite films. The prod...
Published in Physica Scripta
Herein, Ni/Co co-doped ZnO nanoparticles (NPs) were successfully prepared via chemical co-precipitation process. The structural, purity and crystallite size of as-prepared particles were confirmed by using x-ray diffraction (XRD). The results revealed the hexagonal wurtzite structure of ZnO without any impurity phase of as-prepared samples. The cry...
Published in Physica Scripta
In the present study we emphasized on the dielectric properties of Ethylene Vinyl Acetate (EVA) filled with untreated and plasma-treated graphene oxide (GO). The chemical fingerprints of EVA/GO were analysed using FTIR. Decreased ID/IG ratio from 2.99 to 2.75 and 1.60 to 1.16 due to exposed plasma was confirmed by Raman spectroscopy. X-ray diffract...
Published in Journal of Physics D: Applied Physics
In this paper, a method of significantly increasing the energy density of biaxially oriented polypropylene (BOPP) film by cryogenic environment has been proposed. The notable enhancements in the dielectric and energy storage performance can be attributed to precise microstructure manipulation, aimed at controlling charge injection limitations and o...
Published in Physica Scripta
In this research, BaFe12O19/GO (GO:10, 20, 40, and 50 wt%) nanocomposites were synthesized by sol–gel auto combustion method and their structural, optical, magnetic and dielectric properties were investigated. The x-ray diffraction results for all nanocomposites validate the formation of a hexagonal phase of Ba hexaferrite. The crystallite size dec...
