Materials Literature
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Technological design is one of basic activities in process of preparation of innovation, modernization or reconstruction of production. Technological project represents the first model of structure of the future production, which enables to simulate realization of the future production process including its economic i…
In this article, out-of-phase thermo-mechanical fatigue (TMF) behaviours of light alloys were investigated in comparison to their high temperature low cycle fatigue (LCF) behaviours. For this objective, strain based fatigue tests were performed on the A356 aluminium alloy and on the AZ91 magnesium alloy. Besides, TMF…
We are concerned with a nonstandard phase field model of Cahn-Hilliard type.The model, which was introduced by Podio-Guidugli (Ric. Mat. 2006),describes two-species phase segregationand consists of a system of two highly nonlinearly coupled PDEs.It has been recently investigated by Colli, Gilardi, Podio-Guidugli, and…
We reinterpret the results of the direct searches for dark matter in terms of milli-interacting dark particles. The model reproduces the positive results from DAMA/LIBRA and CoGeNT and is consistent with the absence of signal in the XENON100, CDMS-II/Ge, and LUX detectors. Dark atoms, interacting with standard atoms t…
A pH responsive system is reported based on the “COOH–Zn 2+ –drug” architecture via coordination bonding in ZnS nanospheres' mesopores.
The effect of metal cations on the galvanic corrosion behavior of A3003 aluminum alloy in low concentration of chloride ion containing solutions (tap waters) was examined by electrochemical noise impedance. The electrochemical noise impedance and conductance were calculated by the power spectrum density of the galvani…
In this study, the variation of the magnetic ux distribution in a magnetised ferromagnetic material which has in homogeneity as a crack is studied. An orthogonal uxgate magnetic eld sensor was used in the inspection of cracks. In the uxgate sensor, the sensing element (Co0.94Fe0.06)72.5Si12.5B15 amorphous ferromagneti…
We review our recent achievements in monolithic 3D-ICs and flexible electronics based on single-grain Si TFTs that are fabricated inside a single-grain with a low-temperature process. Based on pulsed-laser crystallization and submicron sized cavities made in the substrate, amorphous-Si precursor film was converted int…
The topic is the interpretation of measured values, a theoretical model and the investigation of critical parameters affecting stress sensitive permeability. The computer aided biaxial compression testing device allows the determination of the permeability, while at the same time the applied stress is measured. Compre…
Three-dimensional (3D) CdMoO 4 hierarchical structures constructed by single-crystalline nanoplates were prepared by a facile hydrothermal route.
A porous layer built by connecting orthorhombic cages with accessible metal centers shows high selectivity for CO 2 over CH 4 .
Carbon containing superinvar alloys based on Fe-Ni-Co-matrix has been obtained by casting. It is shown that carbon addition increases coefficient of thermal expansion (CTE) up to 3·10-6К-1, which is unacceptable and can be reduced after a heat treatment using annealing, quenching and quenching with subsequent temperin…
Copper nanoparticles localized on the surface of cotton fabric are synthesized. The structure and composition of the particles are determined by EXAFS, TEM, EPR, and XRF. The nanoparticles obtained are suggested to have a core shell structure. The study shows that copper is distributed in the fabric in the form of nan…
Powders of aluminum nitride can be prepared by self-sustain high-temperature synthesis (SHS) between aluminum and nitrogen but its high exothermic effect causes melting and evaporation of aluminum and low efficiency of such reaction. A presence of inorganic salt in the starting powder mixture can decrease a heat evolv…
This work studies the use of Amaranthus cordatus as the corrosion inhibitor for conventional mild steel in 0.5 M and 1.0 M of both H2SO4 and NaCl. The effects of different concentrations of the acid and base on the inhibition efficiency of Amaranthus cordatus were tested at room temperature and at different inhibitor…
Corrosion of steel reinforcement is one of the major problems that shorten the service life of reinforced concrete (RC) structures. Steel stirrups, due to their location as an outer reinforcement, are more susceptible to corrosion problems and damage. However, there is limited research work in the literature on the ef…
A new structural design for wrinkling to improve mechanical durability by exploiting a porous polymer film embedded on the surface of an elastomer is proposed. The embedded thin porous film acts as a hard layer, which buckles into wrinkles, and the interpenetrated structure effectively suppresses fatal failures such a…
Molecular dynamic (MD) simulations were carried out to predict the thermo-mechanical properties of the cured epoxy network composed of diglycidyl ether bisphenol A (DGEBA) epoxy resin and tetrahydrophthalic anhydride (THPA) curing agent and their single-walled carbon nanotubes (SWCNT) reinforced the epoxy matrix compo…
During the past two years, Cytec Industries has successfully developed and demonstrated an antiscalant technology that substantially reduces the fouling issue that remains a perennial problem in wet-process phosphoric acid production plants. The technology has offered significant benefits at various points in the proc…
Hydroforging is a hybrid forming operation whereby a thick tube is formed to a desired geometry by combining forging and hydroforming processes. Through this process hollow structures with high strength-to-weight ratio can be produced for applications in power transmission systems, etc. In this process, a thick tube i…