A5045452431- Phase-change materials and chalcogenides
- Anodic Oxide Films and Nanostructures
- Glass properties and applications
- ZnO doping and properties
- Chalcogenide Semiconductor Thin Films
- Polymer Nanocomposite Synthesis and Irradiation
- Gas Sensing Nanomaterials and Sensors
- Advanced Photocatalysis Techniques
- Smart Materials for Construction
- Copper-based nanomaterials and applications
- Semiconductor materials and devices
- Pigment Synthesis and Properties
- Nonlinear Optical Materials Studies
- Conducting polymers and applications
- Concrete Corrosion and Durability
- Tribology and Wear Analysis
- Thermal and Kinetic Analysis
- Photonic Crystals and Applications
- Nanowire Synthesis and Applications
- Polymer Nanocomposites and Properties
- Carbon Nanotubes in Composites
- Crystal Structures and Properties
- Advanced Sensor and Energy Harvesting Materials
- Ga2O3 and related materials
- Transition Metal Oxide Nanomaterials
Assiut University
2016-2025
Academy of Scientific Research and Technology
2021
Vrije Universiteit Brussel
2016-2017
King Abdulaziz City for Science and Technology
2013-2016
GTx (United States)
2016
IMEC
2015
KU Leuven
2015
Abstract The functionalized polyvinyl alcohol (PVA) based nanocomposites thick films of 80 μm containing 1–3 wt% zinc oxide (ZnO) nanoparticles (NPs) were studied. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and Raman utilized for studying the structural parameters formed chemical bonds synthesized PVA-ZnO films. In addition, extensive characterization has been done on their linear nonlinear optical properties. analysis revealed formation a wurtzite hexagonal ZnO...
Abstract The structural and optical properties, as well dielectric characteristics at various frequencies (0.1 Hz—20 MHz) temperatures, T (300–400 K), of hydrothermally synthesized SnO 2 nanoparticles, Cu/SnO , Fe/SnO composites have been investigated. crystal structure is mostly formed a tetragonal phase, with second phase monoclinic CuO or rhombohedral Fe O 3 detected in composites, respectively. direct band gap, residual constant, density charge carriers are increased, while ac...
In the present work, PbO-x wt% Al2O3 nanocomposites (where x = 0, 10, 20, 30, 40, 50, 60, 70, and 100 wt%) were prepared by a microwave irradiation method. Their structural parameters, morphology, chemical bonds, investigated X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR). It was noticed that produced phases have an orthorhombic crystal structure smaller average crystallite sizes formed when ratio of is 40 wt%. The FTIR...
The acrylic polymer composites in this study are made up of various weight ratios cement or silica nanoparticles (1, 3, 5, and 10 wt%) using the casting method. effects doping ratio/type on mechanical, dielectric, thermal, hydrophobic properties were investigated. Acrylic containing 5 wt% had lowest abrasion wear rates highest shore-D hardness impact strength. increase inclusion enhanced surface roughness, water contact angle (WCA), thermal insulation. Acrylic/cement demonstrated higher...
In this study, epoxy–cement composites with different concentrations of cement nanofiller and ~67.5 nm in size (0, 5, 10, 15, 20 wt%) were synthesized using the solution casting method. The composites’ structural, mechanical, wettability, roughness, thermal insulation investigated. epoxy resin is amorphous, whereas are crystalline, its crystallinity depends on filler ratio. incorporated hindered spread cracks voids composite few illuminated regions, epoxy/cement interface was identified....
Porous alumina films, prepared by anodization of pure aluminum (Al) thin film deposited on SiO2/Si substrate, has been fabricated and characterized. Constant voltage constant current in two-electrode cell configurations were performed. Electro-oxidation Al the range 1-90V was explored using three electrolytes: 1M sulfuric acid (1-22V), 0.3M oxalic (1-70V) 0.75M phosphoric (60-90V). The temperature dependence i-V characteristics properties porous structures are ascertained. An explanation for...
Different zinc oxide (ZnO) morphologies were synthesized via a thermal evaporation-like technique without catalyst introduction. The morphology of ZnO has been controlled by varying the evaporation pressure ambient air. X-ray diffractometer and field emission scanning electron microscope used for crystallinity investigation, respectively. data confirmed purity as-prepared structure. A variation led to different nanostructure such as nanocombs nanorods. influence these on photocatalytic...