Materials Literature
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Analysis of properties of cold-setting epoxy adhesives and various types of film adhesives is carried out with reference to their applicability in Arctic conditions. Data on waterproofness, water absorption, and hygroscopic properties of the set adhesive films are determined. The application of adhesive joints at–60°C…
Synthesis of phosphorus-boron-nitrogen-containing modifier (PEDA) has been performed, and the properties thereof have been studied. It has been shown that introduction of PEDA as a modifying additive in elastomeric compositions makes it possible to improve their adhesive and fire–heat protective properties.
The model of the migration and accumulation at dislocations of transmutation helium and the formation of helium–vacancy pore nuclei in austenitic steels upon neutron irradiation has been proposed. As illustrations of its application, the dependences of the characteristics of pore nuclei on the temperature of neutron i…
We have investigated the photovoltaic properties of an inverted bulk heterojunction (BHJ) cell in a device with an indium-tin-oxide (ITO)/electron selective layer (ESL)/P3HT:PCBM active layer/MoOx/Ag multilayered structure. The insertion of only single layer of poly(diallyl-dimethyl-ammonium chloride) (PDDA) cationic…
Y2O3:Tb3+ nanoballs were synthesized via the urea homogeneous precipitation method (UPM). The resulting Y2O3:Tb3+ phosphors were characterized by X-ray diffraction (XRD), scanning electron microscopy, ultraviolet-visible (UV-vis) absorption spectra, and general photoluminescence spectra. The particle sizes estimated u…
Nanomechanical oscillators based on amorphous carbon whiskers, localized on the top of tungsten tip were fabricated and investigated. The whiskers were grown in the scanning electron microscope chamber using focused electron beam technique. Oscillation trajectories and amplitude‐frequency characteristic of the oscilla…
Washing of metatitanic acid (H2TiO3) consumes a large amount of water during the production of titanium dioxide (TiO2) by the sulfate process. In this work, ultrasound technology is used for the pretreatment of a metatitanic acid slurry before washing. The water consumptions of washing process are compared in the abse…
Combining in a single event the 42 nd International Symposium on Compound Semiconductors (ISCS 2015) and the 27 th International Conferences on Indium Phosphide and Related Materials (IPRM 2015), CSW has become one of the premier forums for the dissemination of research fi ndings on all aspects of compound semiconduct…
Tricresol-blocked di- and polyisocyanates (BDPs) of variable structure are synthesized, and their main physicochemical and technological properties are defined. They have lower melting points and thermal dissociation (deblocking) temperatures than do the known BDPs based on ε-caprolactam, oximes, and secondary amines.…
Mesoporous pure TiO2 (M-TiO2) and mesoporous-vanadium-doped TiO2 (M-V-doped TiO2) were successfully synthesized via a facile and simple reflux technique. The purpose of this research was to study the effect of vanadium dopant on the physicochemical properties of all materials obtained. Characterization of the prepared…
Polysilsesquioxane (PSQ) comprising 3-methacryloxypropyl groups was investigated as an ultraviolet (UV)-light curable gate dielectric-material for pentacene thin film transistors (TFTs). The surface of UV-light cured PSQ films was smoother than that of thermally cured ones, and the pentacene layers deposited on the UV…
The ordering configurations of a fluid of anisotropic ellipsoids under the confinement of two apposing impenetrable walls are studied by Monte Carlo simulations. The excess adsorption of the fluid on the walls with respect to the aspect ratio has a maximum at the critical aspect ratio of 2.9 in high-density ellipsoid…
The inhibition effects of polyaspartic acid (PASP) and the mixed inhibitor (50mg/L PASP, 100mg/L Na 2 WO 4 , 100mg/L ZnSO 4 .7H 2 O) on mild steel corrosion in seawater wet/dry cyclic conditions were studied via weight loss and electrochemical methods. The polarization curves show that the inhibition efficiency is 72.…
Preliminary notes
Polysilsesquioxane (PSQ) is a low-temperature curable polymer that is compatible with low-cost plastic substrates. We cured PSQ gate dielectric layers by irradiation with ultraviolet light at ~60 °C, and used them for 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS-pentacene) thin film transistors (TFTs). The fabri…
In this research, analysis of the magnetic properties of the nanoscale ferromagnetic material barium strontium hexaferrite with the composition of Ba(0.7)Sr(0.3)O6(Fe2O3) or written as B7S3HF is conducted. The material was prepared by the ball mill method, followed by reducing the particle sizes of the material to rea…
In this study, the fluorescent ceramic nanofibers were prepared by electrospinning and high-temperature heat treatment, and the single electrostatic spinning nanofibers on the Field-effect transistor was explored. Part I, in the preparation of precursor solution, adding an appropriate of Polyvinylpyrrolidone (PVP), an…
Chitosan-Fe 3 O 4 nanoparticles have been synthesized in a one pot reaction by combine TPP: citrate as crosslinker. The method was in-situ co-precipitation of iron salts in the presence of chitosan and crosslinker. The aim of this study was to determine the effect of preparation process towards chitosan-Fe 3 O 4 nanop…
The present work is a study of the effect of slurry particle type, impact angle, and velocity, and test duration time on the erosion process of stainless steel 316, 304. Erosion change the surface geometry of the parts, components of machines that will affect the performance and efficiency of the parts may be causing…
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