Materials Literature
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The removal of cetyltrimethylammonium bromide from as-synthesized MCM-41 in different methods has been investigated. The removal of template from MCM-41 precursors was conducted by reflux, Soxhlet extraction and magnetic stirring extraction at ambient room temperature in ethanol and ethanol-containing hydrochloride so…
Abstract In the present work, crosslinked polyethylene (PEX) was obtained by adding dicumyl peroxide (DCP) to polyethylene. High‐density polyethylene (HDPE) and linear low‐density polyethylene (LLDPE) were used as starting polymers, synthesized by Ziegler‐Natta or metallocene catalysts. Also, the effect of the comonom…
New methods of non-destructive control must be developed and existing ones must be improved in order to solve the problem of control of fissile materials (FMs) in vessels with nuclear wastes, and to provide safe operation of nuclear power plants. This paper considers the application of active methods of control on the…
This paper discusses the tellurite fibers for mid-IR applications. Over the past few years, the authors have developed a glass and fiber infrastructure and have demonstrated their capability to synthesize and characterize glasses, fabricate preforms and draw fibers, and demonstrate various optical effects in these. Ho…
Bactericidal properties of aqueous dispersions of oxide silver nanostructures (ADSN) produced by means of pulsed electric discharges (PED) in water can use in surgery for treatment of upper purulent wounds with a chronic component. The patients with such wounds are of large number and differ on etiology of diseases bu…
Generally, macroscopic molecular orientation state in liquid crystal layer can be described by Ossen and Frank's continuum theory. However, the validity of applying the continuum theory to nematic liquid crystal thin film (NLCF) has not been confirmed yet. In this study, we experimentally examined NLCF by employing sp…
Vertically aligned single-walled carbon nanotube arrays have shown great promise for applications as electrochemical devices due to their high conductivity and large electrode surface area. There has also been research showing that they can be applied to transparent photovoltaic devices. In this work we synthesised ve…
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DWDM Transmission Based on the Thin-Film Filter Technology A dense wavelength division multiplexing (DWDM) transmission scheme with two thin-film filters (FWHM bandwidth 100 GHz and 200 GHz) has been realized to evaluate the minimum channel interval needed for a satisfactory bit error ratio. For this purpose, detailed…
The electromechanical behavior of poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] ferroelectric thin film was investigated using the three dimensional (3D) phase-field method. Various energetic contributions, including elastic, electrostatic, and domain wall energy were taken into account in the variational…
To estimate the field emission current associated with an array of carbon nanowalls (CNWs), the model of the floating rods between anode and cathode plates was proposed. An approximate formula for the enhancement factor was derived, showing that the interwall distance of the CNW array critically affects the field emis…
Reaction of an aqueous solution of osmium tetroxide with the chitosan polymer model, the oligomer tetradeca(β(1→4)2-amino-2-deoxyglucopyranose)-β(2→5)mannitol, afforded a brown solid, the structure of which was proposed to contain osmium imido groups, −N˭Os. The product showed a new, distinct absorption band at 850 cm…
Shape memory alloys such as Nitinol, which is a group of NiTi alloys composed of nearly equiatomic nickel and titanium, finds increasing applications in many industries because of its unique properties including the shape memory effect and pseudoelasticity. In past work simple linear actuators have been developed usin…
In this study, polyester fabric was treated with sodium hydroxide combined with corona discharge to modify the surface properties. This was done to improve its adhesive property to ensure effective sizing with starch under different conditions. Scanning electron microscopy photographs showed that the surface of polyes…
Sr2SiO4 flower-like nanostructures were grown by thermal oxidation of SrSi2 powders with Ga droplets. The morphology and structure of the Sr2SiO4 flower-like nanostructures were investigated using transmission electron microscopy. The leaves of the Sr2SiO4 flower-like nanostructures became narrow towards the tips. Sr,…
The development of functional layers such as a tritium permeation barrier and an anti-corrosion layer is the essential technology for the development of a molten salt type self cooled fusion blanket. In the present study, the characteristics of a nitriding treatment on a reduced activation ferritic steel, JLF-1 (Fe-9C…
The decomposition of amorphous carbon (a-C:H) films was investigated by thermal desorption under ultra high vacuum. To determine the deposition method dependence of the decomposition, films were prepared by radio-frequency (RF) and electron cyclotron resonance (ECR) plasma chemical vapor deposition (CVD). The a-C:H fi…
The structures of the functions that can be used to describe the plastic deformation and creep deformation of metals are studied. Equations based on an additivity condition are obtained, and examples of the application of the solutions to these equations for determining stresses are given.
Abstract Magnetic properties of multi‐walled carbon nanotubes (MWCNT) modified with cobalt were studied in detail in the temperature range (4.2–290) K. MWCNT which encapsulate Co nanoparticles were obtained using CVD methods. The low temperature SQUID magnetization measurements were supplemented by structural investig…
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