Materials Literature
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Ferrites nanoparticles have been the emerging focus of the recent scientific research because of the importance of nanotechnology in the present era. They have various possible new technological applications in areas like catalysts, ferrofluids, magneto caloric refrigeration and medical diagnostics. Properties of nano…
Solid solutions of Zn1−xCdxO and Zn1−xMgxO (0≤x≤1) with wurtzite structures are systematically investigated by first principles calculations with special interests on the dependence of energetics and electronic structures on the alloy structure. Alloying ZnO with CdO shows a linear increase in the lattice parameters w…
In this paper the usability of cast iron spheroidizing process in mould control by ATD method as well as by ultrasonic method were presented. Structure of instrumentation needed for control form performance of cast iron spheroidizing by Inmold method was illustrated. Author, pointed out that amount of magnesium master…
Comparison between epoxidised natural rubber (ENR) and natural rubber (NR) filled with organoclay in terms of curing characteristics, tensile properties, thermal stability and morphology were studied. Organoclay loadings from 2 to 10 phr loading were used in this study. The nanocomposites were compounded using laborat…
In this work, a portable solar thermoelectric refrigerator was built in order to help Bedouin people living in remote parts of Oman. The purpose of the study was to demonstrate the feasibility of the implementation of the fabricated solar thermoelectric refrigerator. To this end, a survey questionnaire was conducted i…
Oxidation of [Ru(NH(2)Q)(3)](2+) (NH(2)Q = 8-aminoquinoline) results in intermolecular coupling of 8-aminoquinoline ligands to yield an electroactive polymer. Oxidative polymerization is not observed for [Ru(bpy)(2)(NH(2)Q)](2+) (bpy = 2,2'-bipyridine), where only one 8-aminoquinoline ligand is present.
ZnTMP-PD was synthesized and fully characterized; by using electrochemical and spectroelectrochemical methods, ligand shuttling between the zinc porphyrin and the meso-phenylenediamine substituent could be monitored; EPR results indicated that the charge was delocalized on ZnTMP-PD.
A new carbonate borate, Sr(Na0.4Sr0.1)Na2[B5O8(OH)2] · (CO3)1 − x , space group B2/b, is synthesized under hydrothermal conditions. A new layered anionic boron-oxygen radical based on the 5[3T + 2Δ] block, which is a component of the framework of the subgroup of triclinic hilgardites, is found in the structure. The st…
The compatibility of bismuth compounds as a sintering aid for (ZrO2)0.89(ScO1.5)0.1(CeO2)0.01 (ScSZ) electrolyte in intermediate-temperature solid oxide fuel cells (IT-SOFCs) has been discussed. Addition of 3 mol% BiO1.5 considerably decreased the sintering temperature of ScSZ of approximately 200°C and achieved the d…
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Gel polymer electrolytes (GPEs) based on hyperbranched poly (ether urethane) (PHEU) were prepared from the reaction of the hyperbranched polyether (PHEMO) with different diisocyanates in liquid electrolyte. The ionic conductivities and transference number of the GPEs were investigated by alternating current (AC) imped…
The Mn 3 O 4 nanoparticles were synthesized by optimizing the precipitation system MnCl 2 /H 2 O 2 /NH 4 OH. The material thus obtained was microstructurally characterized using X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy and scanning electron microscopy (SEM). The Mn 3 O 4 nanoparticles w…
In the present study we report about the influence of dislocations on martensitic transformations in NiTi single crystals. Microstructural investigations are performed on Ni 50.4 Ti 49.6 (at.%) single crystals using in-situ cooling and heating transmission electron microscopy (TEM). Solution heat-treated Ni 50.4 Ti 49…
Gold nanorods protected by hexadecyltrimethylammonium bromide were treated by an organosilane, aminopropyltriethoxysilane (APS) or vinyltrimethoxysilane (VS) in the presence of mercaptopropyltrimethoxysilane (MPS) serving as a binder. After the APS- or VS-treatment, a shell about 4 nm thick surrounding the nanorods wa…
With the minimum Gibbs energy of the system by computer simulation and experiments, the activity of activated coke (AC) and V2O5/AC was studied by the main components change in the system of flue gases activation. The results of calculating and experiments show that the change of value of carbon monoxide concentration…
Sintering of a ZnO-MgO powder mixture under argon flow leads to the growth of elongated Mg doped ZnO structures such as stacks of nanoplates and rods with secondary nanowires in a comb-like arrangement. The nanoplates grow perpendicular to a central axis and have a six-fold symmetry. The hierarchical growth is related…
Experiments were conducted to investigate the deformation behaviors and fatigue properties of a superelastic thin tube (SE-tube) and a high-elastic thin wire (HE-wire) of TiNi alloy under conditions of pulsating-plane, alternating-plane and rotating bending. The main results obtained are summarized as follows. (1) The…
Nanotubes self-assembled from calixcrowns are utilized as an organic template for fabricating 1-D nanohybrids with noble metal nanoparticles attached to the nanotubes, which show good catalysis properties.
Fundamentals and recent research development of the structure and growth mechanism of anodic oxide films formed on pure aluminum and aluminum alloys such as A5052 and A6061 were described with focusing on their gas emission property in use of vacuum chambers. Highest volume gas emitted from anodized aluminum surface i…
The potential energy landscape of a flowing metallic glass is revealed using the activation-relaxation technique. For a two-dimensional Lennard-Jones system initially deformed into a steady-state condition through quasistatic shear, the distribution of activation energies is shown to contain a large fraction of low-en…