Materials Literature
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Abstract In this study, the stability of 10% hydrogen peroxide aqueous and non-aqueous solutions with the addition of 6% (w/w) of urea was evaluated. The solutions were stored at 20°C, 30°C and 40°C, and the decomposition of hydrogen peroxide proceeded according to first-order kinetics. With the addition of the urea i…
The media has shown the major problems caused by pipeline leaks; however, the contamination caused by storage tanks of fuel and chemicals is not always shown to the general public, especially when the holes are located on the bottom of the tank. Most of the time the groundwater contamination goes unnoticed and will on…
In a modified simulated body fluid (mSBF), biodegradability and surface chemistry of AZ31D compared with AZ91 were studied using electrochemical techniques and immersion test. A protective surface film made the corrosion rate(CR) decreased rapidly and then reach a stable stage with immersion time increasing from 1d to…
X-ray photoelectron spectroscopy (XPS) was used to analyze a commercially available GdScO3 (110) bulk single crystal. XP spectra were obtained using incident monochromatic Al Kα radiation at 0.83401 nm. A survey spectrum together with Gd 3d, O 1s, Sc 2p, Gd 4p, C 1s, Gd 4d, Sc 3s, Gd 5s, Sc 3p, O 2s, Gd 5p, and Gd 4f…
Nowadays electromagnetic shielding is getting more importance due to the widely usage of electronics such as mobile phones, televisions etc. There are many studies on the electromagnetic shielding effects of the conductive textile structures. However there are no researches on the shielding effect of the fabrics after…
Use of industrial and agricultural waste products such as (sisal, flax, glass fiber and Carpet wastes fiber). materials in concrete is not only improves the strength of concrete but, also leads to the proper disposal of these materials, resulting in reducing impact of these materials on environment. Fiber admix can ef…
Radioisotope thermoelectric generators (RTG) convert the decay energy of a radioisotope (<sup>238</sup>Pu) into heat then into electricity. RTGs have been used to power space exploration missions. This review paper studies several crucial features of past and present Static RTGs, for instance the advantages of Static…
Magnesium oxysulfate cement (MOS) pastes mixed with different amounts of fly ash were tested on the compressive strength. The examinations of strength development, phase compositions and microstructure of MOS cement are discussed in detail. Results showed that the compressive strength of MOS cement specimens decreased…
In this paper, using DTMOS as an effective solution of RTN suppression without device/circuit performance penalty is proposed and demonstrated for the first time, with experimental verification and circuit analysis. The experiments show that RTN amplitude is greatly reduced in DTMOS mode, which is even better than the…
In this study, oligomer Joncryl TM ADR was used to extend the chains and improve the mechanical properties. The chain extender multifunction epoxide was used with concentrations of 0.5 and 0.9 wt %. Pure and modified PLAs were characterized using DSC, MFI and FT-IR. The DSC results showed that Tg shifted to the high t…
Hydrogen diffusion within a metal or alloy is conditioned by the stress-strain state therein. For that reason it is feasible to consider that hydrogen diffuses in the material obeying a Fick type diffusion law including an additional term to account for the effect of the stress state represented by the hydrostatic str…
Abstract Alloyed layers on pure magnesium were created by means of the heating of the magnesium sample covered with Al+Zn powders mixture containing 20 wt.% Zn and 40 wt.% Zn in vacuum furnace. The microstructure and related composition of the alloyed layers were investigated using optical microscopy and scanning elec…
In this study, we propose a polarization conversion reflector using a metal-plate-loaded meander line and determine the reflector's axial ratio characteristics with a numerical analysis involving the method of moments. A relative bandwidth greater than 90% is obtained.
This chapter aims to review the recent trends pertaining to the enhanced functionalities, including low Young’s modulus, self-tunable Young’s modulus, and low magnetic susceptibility, of titanium and zirconium alloys for use in orthopedic implants. These value-added functionalities can be realized by controlling the t…
Corrosion and passivation behaviour of tinplate in a synthetic medium similar to industrial water containing Cl-, so2 and HCO3 has been studied in the presence and absence of molybdate anions by using electrochemical polarization measurements. The results show that tinplate manifests a passivation phenomenon with a pa…
This work report on the fabrication of titania nanotube array film anodized in a fluoride-based electrolyte mixture of dimethyl sulfoxide and ethanol. Optimization of the anodization parameters has been examined and reported in a 3D surface plot, with the achieved result that the improved nanotube length is up to six…
Silver nanoparticles (AgPNs) extracts were prepared from seven Seven fungal isolates were evaluated through measuring their toxicity against Biomphalaria alexandrina snails. The effects of the two promising Paecilomyces variotii and Aspergillus niger AgNPs sublethal concentrations (LC10 & LC25) on the levels of steroi…
The corrosion of metallic structures buried in soil or submerged in water which became a problem of worldwide significance and causes most of the deterioration in petroleum industry can be controlled by cathodic protection (CP).CP is a popular technique used to minimize the corrosion of metals in a variety of large st…
The combination of different light alloys enables lightweight solutions with tailor‐made properties at the macroscopic global as well as at the microscopic scale. In this context co‐extrusion by a lateral angular co‐extrusion (LACE) process offers a great potential for advanced profiled structures. While titanium allo…
The effects of zinc oxide nanorod (ZnO-N) incorporation on thephysicochemical properties of tapioca starch / bovin gelatin composite film such as water absorption capacity (WАC), water solubility and permeability to water vapour (WVP) were investigated. In this search, ZnO-N was homogenized by sonication and added int…