Materials Literature
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The corrosion behavior of metallic structures is an important factor of material performance. In case of aluminum matrix composites corrosion occurs via electrochemical reactions at the interface between the metallic matrix and the reinforcement. The corrosion rate is determined by equilibrium between two opposing ele…
We report the design and fabrication of a carbon nanotube based a glass-sealed field emission x-ray tube without vacuum pump. The x-ray tube consists of four electrodes with anode, focuser, gate, and cathode electrode. The shape of cathode is rectangular for isotropic focal spot size at anode target. The obtained x-ra…
The AlCl3/Ti co-doped 4MgH2-Li3AlH6 has been successfully synthesized using solid ball-milled method. The effect of AlCl3/Ti and different preparation conditions on reversible hydrogen storage of 4MgH2-Li3AlH6 were investigated. It was found that the formed Al3Ti and Al can improve the de/rehydriding performance. The…
The blends of ethylene vinyl acetate (EVA) and thermoplastic polyurethane (TPU) were prepared by means of blending. The mechanical properties of EVA/TPU blends and thermal stability of the extrudates were investigated. The results show that the toughness of EVA/TPU has been improved after adding TPU into EVA, and does…
Lead zirconate titanate (PZT)-based nanocomposites embedded with ZrO2 nanoparticles were fabricated by citrate precursor route from metastable phases in situ. The effect of ZrO2 content on mechanical and piezoelectric properties of composites was investigated. m-ZrO2 particles covering 30-70 nm are dispersed homogenou…
Pre-wetted sand shows approximate underwater superoleophobicity and ultralow oil-adhesion in water medium based on its strong water absorbing ability. In article number 1500650, a pre-wetted sand layer was successfully applied in the field of oil-water separation by J. Yong and co-workers and showed extremely high sep…
In this paper,under alkaline conditions,with chloroacetic acid to modify chitosan,obtained carboxymethyl chitosan. At pH<7 conditions,the obtained carboxymethy chitosan respectively were reacted with calcium chloride solution,zinc chloride solution,after fully reacted,obtained carboxymethyl chitosan calcium and carbox…
Micro-arc oxidation coating on TC4 titanium alloy was fabricated in Na 2 SiO 3 -Na 3 PO 4 -NaOH electrolyte under constant voltage mode using a multifunctional device that is self-designed. The effects of negative duty cycle on the coating thickness, surface morphology, hardness, phase composition and anti-corrosion w…
Preparing carbon nanotube (CNT) arrays by plasma enhanced chemical vapor deposition (PECVD) method can dramatically reduce the deposition temperature, which makes it possible for in-situ fabrication of CNT-based nanoelectronic devices. In this paper, up to date research progress of CNT arrays prepared by PECVD method…
Introduccin: diferentes enfermedades afectan la trquea y deterioran la calidad de vida. La ingeniera tisular es una alternativa teraputica para los pacientes con esas enfermedades: matrices de trquea descelularizadas y sembradas con clulas del receptor no generan respuesta inmune y pueden prevenir incluso el rechazo d…
In this study, Tungsten Trioxide thin films were successfully synthesized at different substrate temperatures by pulse laser deposition. Structural, morphological and electrical properties of WO3 thin films, were investigated by X-ray diffraction (XRD), Atomic Force Microscope AFM), Scanning Electron Microscope (SEM),…
Background and Aim: Midazolam is among routine agents used for inducing safe sedation. This study was designed to compare the sedative effect of oral administration of midazolam (Elixir vs Vial) in fearful children during dental treatment. Materials and Methods: A randomized double blind clinical trial was conducted i…
cRGD-carboxymethyl chitosan-palmitic acid (cRGD-CMCh-PA) was synthesized and a pH- sensitive paclitaxel-loaded cRGD-CMCh-PA micelles（PTX-cRGD-CMCh-PA） was prepared with the film dispersion method; related substances were characterized by FT-IR and (1)H NMR. PTX-cRGD-CMCh-PA micelles were studied with the particle size…
We study periodic, conewise linear maps of the plane with integer coefficients starting with Mort Brown's map. We show that if the number of cones is two, there is only a short list of possible periods (this fact can be seen as the crystallographic restriction for this class of maps). Otherwise, without the restrictio…
During the down-stream processing of an undiluted epoxy resin, water contamination, e.g. due to the failure of a tube of a heat exchanger, can introduce the risk of an unwanted hydrolysis reaction, followed by a cross- linking reaction. The latter, despite not being inherently dangerous, can lead to a dramatic increas…
Sheet-like Bi2MoO6:Ln3+ nanocrystals were synthesized by a hydrothermal method. The crystalline size of Bi2MoO6:Ln3+ (Ln = Eu and Gd) nanocrystals changes gradually with the increasing of Ln3+ content in the reaction solutions. The photoluminescence properties of Bi2MoO6:Ln3+ nanocrystals were investigated in detail.…
The application of Carum Carvi’s essential oil in a corrosion inhibitor for mild steel (MS) protection was investigated in 1 M HCl solution. Essential oil from Carum Carvi was obtained by Clevenger type water distillation. The major compounds in these essential oils was identified using gas chromatography-mass Spectro…
In this study, we investigated the induced behavioral changes and neuropathology of prolonged exposure to high doses of Zn-NPs in two species of tilapia, T. nilotica and T. zilli.Fish that were treated with 2000 µg Zn-NPs /L showed severe degenerative changes and vacuolation in the neuropil, particularly of the optic…
Model of heat and mass transfer in catalytic cathode layers of air–hydrogen fuel cells is developed on the basis of experimental data on the layers’ structure. The effect of carbon nanotubes is analyzed: their introducing into the catalytic layer increased the layer’s porosity. The derived analytical expressions allow…
In contrast to isothermal aging, few reports document the non-isothermal aging of deformed Al–Mg–Si alloys. The knowledge of non-isothermal aging of pre-deformed Al–Mg–Si alloys is of primary importance to understand the thermal stability as well as to control the microstructure of the final product during industrial…