Materials Literature
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Flake-shape Sendust particles with high microwave magnetic permeability and permittivity were prepared with the method of wet ball milling, and then mixed with the polymer to get a sheet-type composite as an effective EMW absorber. It was found that the composite has a very high shape factor owing to the flaky Sendust…
In this research, the compression deformation were investigated under different elevated temperatures and strain rates, in order to obtain the creep constitutive equation. The effects of aperture load and pore shape on the compression properties of porous Cu alloys were studied by simulating the creep compression defo…
LaNi 5 -xwt%Mg hydrogen storage alloys with different Mg content were made from pure La, Mg and Ni metal powder by mechanical alloying, selecting appropriate ball-milling parameters in 0.4MPa hydrogen atmosphere. The characterizations for hydrogen storage alloy show that a multi-phase alloy composed of MgH 2 , LaH 3 ,…
A first-principles technique capable of describing the nearly excited states of semiconductors and insulators, namely the modified Becke-Johnson (mBJ) potential approximation, is used to investigate the electronic band structure and the optical properties of the spinel oxide SiZn 2 O 4 . The band gap predicted using t…
The electroluminescent properties of an n-GaSb/n-InGaAsSb/p-AlGaAsSb heterostructure with a high potential barrier in the conduction band (large conduction-band offset) at the n-GaSb/n-InGaAsSb type-II heterointerface (ΔE c = 0.79 eV) are studied. Two bands with peaks at 0.28 and 0.64 eV at 300 K, associated with radi…
Magnetic hysteresis effects, present in the force of an E-core reluctance actuator, are examined by simulations and measurements. Simulations have been performed with a 3d finite element method (3d-FEM) and a Preisach model, which is extended with a dynamic magnetic equivalent circuit (MEC) model. Both simulation meth…
As wearing parts, shearer picks, in which the huge consumption and inefficient are caused by the poor quality of brazing, are widely used in the mining process. In this paper, the cemented carbide YG15, 42CrMo steel and HL105 copper brazing film were used as the head, body and solder, respectively, and the furnace bra…
Abstract A new type of nanostructured alignment surface is proposed and demonstrated. As in previous nanostructured alignment surfaces, a large pretilt angle of near 45° can be produced reliably. Moreover, this new structure is fabricated with a mask, and there is no randomness involved. The uniformity and anchoring p…
In this study, the biosynthesis of silver nano cubes was carried out using leaf extract of Peltophorum pterocarphum ( P. pterocarphum ) containing Quercetin-3-O-β-D-Galactopyranoside compound. Simple organic compound extraction and reaction with silver nitrate was carried out. Synthesized nano cubes were characterized…
This study investigates the effect of a quinoxaline namely ethyl 2-(4-(2-ethoxy-2-oxoethyl)-2-p-tolylquinoxalin-1(4H)-yl) acetate (Q3), on corrosion inhibition of carbon steel in 1.0 M HCl. Electrochemical impedance measurement, potentiodynamic polarization and weight loss methods were applied to study adsorption of Q…
Abstract Integrated computational materials engineering has proven effective in shrinking materials development timelines and accelerating the implementation of new materials in manufactured components. This article presents examples of aerospace alloys developed using ICME techniques and provides a glimpse of future…
Calotropis procera root is used in traditional medical practice for the treatment of various ailments. The possible hepatoprotective and nephroprotective activities of the ethanolic extract of C. procera root in female rats were investigated. Carbon tetrachloride (CCl 4) was used to induce hepatotoxicity and nephrotox…
This paper reports that according to the principle of EMW-absorption, thermal insulating EMW-absorber for building was designed and theoretically simulated of the λ/4 type. The EMW-absorption properties of composites in the band of 2-4 GHz were examined, A maximum absorption of-20 dB at 3 GHz and 80% of bandwidth belo…
Abstract The paper describes a new approach to characterize metallic materials by a novel instrumented notch impact test for samples with small specimen size. A piezo‐electric sensor mounted on the pendulum hammer provides force information during the fracture process. By numerical integration of the signal the absorb…
Er3+:ZnS quantum dots(QDs) were synthesized by hydrothermal process. The structure, morphology and luminescence properties were characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM) and photoluminescence (PL) spectroscopy. It was found that the Er3+:ZnS QDs are zinc blende structure w…
Successful pharmaceutical development of a drug molecule depends not only on its potency and selectivity but also on its solid state. Thus the properties of active pharmaceutical ingrdient depend on the identity of its constituents as well as on their arrangement. It is quite common for a drug molecule to exist in mor…
The crystal structures and electrical properties of epitaxial BiFe 0.9 Co 0.1 O 3 thin films grown by pulsed laser deposition on SrRuO 3 /SrTiO 3 (001) substrates under different oxygen pressures were investigated. The unit cell volume of BiFe 0.9 Co 0.1 O 3 thin films monotonically decreases with increasing oxygen pr…
Composite systems used for increasing the load bearing capacity of timber structural elements are of special interest for engineers, basically because of their beneficial weight/strength ratio. By creating a hybrid cross section composed of wood and interposed GFRP lamellae, the improvement of wood limited elastic pro…
In order to investigate the role of TiO 2 during plasma treatment, the degradation of the dye AO7 has been studied by gliding arc discharge in the presence of a TiO 2 catalyst (CGAD). The results revealed that the adsorption of the dye on TiO 2 is a physical adsorption in accordance with Langmuir isotherm, with a cons…
Mechanical grinding of steel slag is investigated and characterized using X-ray diffraction and size analyzer. The results indicate that the obtained ultrafine powders contain active mineral phases suitable for ordinary Portland cement (OPC)-Ca(OH) 2 , 2CaO·SiO 2 , 2CaO·Fe 2 O 3 . We have proved and first pointed out…