Materials Literature
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A superhydrophobic polypropylene (PP) coating on the surface of aluminum alloy coupons is unstable because of the existence of metastable state in curing process. Nano-titania particles were added into PP solution to form hierarchical micro- and nano-structures of PP coatings on the surface of aluminum alloy coupons.…
Multi-walled carbon nanotubes were synthesized using a mixture of toluene and ferrocene. Synthesized nanomaterial was characterized with the help of electron microscopes. Carbon nanotubes were used for the removal of anionic dye amido black from water. Effect of dye concentration, contact time and pH were also investi…
Copper (Cu) fine particles were prepared by room-temperature hydrazine reduction of Cu oxide microparticles. In this study, to reveal the formation process of metallic Cu homogeneous fine particles from cupric oxide (CuO) microparticles, hydrazine was added to a CuO slurry at room temperature. The morphological change…
When vertically aligned carbon nanotubes (VACNTs) are synthesized by thermal chemical vapor deposition (TCVD), their structural features such as height and density can be determined by TCVD growth conditions. In this study we investigated the effect of growth pressure on the structural features of VACNTs. Changes in g…
Using poly(3-hexylthiophene) (P3HT) covalently bonded with carbon nanotubes (CNT) as an active layer in a bottom-gate/top contact, Au/(P3HT)/(bilayer dielectric)/Si OTFT device has resulted in an enhanced charge transport. The CNTs were firstly functionalized via ligand exchange with ferrocene, next lithiated by sec-b…
In this work, shape-controlled synthesis of zinc oxide (ZnO) microstructures were demonstrated using liquid-phase route utilizing zinc acetate hydrate as zinc ion precursor and ammonia as pH buffering agent and source for zinc-ammonia complexes. Glass substrate coated with indium tin oxide layer was used as the growth…
This paper describes the surface modification effect of a Ti substrate for improved dispersibility of the catalytic metal. Etching of a pure titanium substrate was conducted in 50% $H_2SO_4$ , $50^{\circ}C$ for 1 h-12 h to observe the surface roughness as a function of the etching time. At 1 h, the grain boundaries we…
A novel main ligand 2-(2,4-dimethoxyphenyl)-5-trifluoromethylpyridine (MeO2CF3ppy) and its complex bis[2-(2,4-dimethoxy-phenyl)-5-trifluoromethyl pyridinato-N,C2]iridium acetylacetonate (MeO2CF3ppy)2Ir(acac) was synthesized. 2,4-Dimethoxy and 5-trifluoromethyl group were incorporated into main ligand to tune luminesce…
Abstract Flux declines versus time during cross‐flow microfiltration of wheat starch suspensions were modeled using fuzzy logic systems under different conditions of transmembrane pressure, flow rate, and suspension concentration. Fuzzy modeling is one of the most efficient methods for empirical modeling, especially f…
Textured surfaces, formed through wrinkling and folding, are observed abundantly in nature. We are especially motivated by the unique capabilities of some species of cuttlefish that camouflage themselves by rapidly switching from smooth to textured skin by expressing protuberances called papillae. Inspired by this, we…
This paper reports the temperature dependent electrical parameters of p-Silicon nanowires (SiNWs)/n-ZnO thin film based core-shell heterojunction diodes fabricated by conformally deposited zinc oxide (ZnO) by atomic layer deposition (ALD) technique on metal-assisted chemically etched SiNWs. The temperature-dependent c…
Pluronic-poly[alpha-(4-aminobutyl)-1-glycolic acid] (Pluronic-PAGA) with different types of Pluronic, the different molecule weight of PAGA, and the different molar ratios of Pluronic to PAGA were synthesized. These materials were bio-degradable, amphiphilic, could be degraded into non-toxic small molecules and could…
The Paton Welding Journal, 2014, №02. International Scientific-Technical and Production Journal «The Paton Welding Journal» «The Paton Welding Journal» has been published monthly since 2000 in English, ISSN 0957-798X. «The Paton Welding Journal» is a cover-to-cover English translation of the «Avtomaticheskaya Svarka»…
Ordered mesoporous silica was successfully synthesized by using different chain-length chiral anionic surfactants, N-acylalanine and N-acylvaline as templates, and N-trimethoxy silylpropyl-N, N, N-trimethyl ammonium (TMAPS) as a co-structure-directing agent (CSDA) under weakly acidic conditions. The synthesized produc…
Copper metal is widely used in tubes installed in sprinkler water services because of its excellent corrosion resistance. Copper corrosion is considered to be insignificant in water system and the incident of copper pipeline failure is relatively low. However, pitting corrosion is a major problem with all copper tubes…
Tin oxide (SnO 2 ) microrods exhibited a reversible and nonvolatile semiconductor–insulator transition under an applied mechanical strain and voltage. To understand the origin of this transition, we studied the lattice defects of a SnO 2 wire under mechanical strain, using transmission electron microscopy (TEM) and ph…
A powder-in-sheath rolling method was applied to a fabrication of a carbon nano tube (CNT) reinforced aluminum composite. A STS304 tube with an outer diameter of 34 mm and a wall thickness of 2 mm was used as a sheath material. A mixture of pure aluminum powders and CNTs with the volume contents of 1, 3, 5 vol was fil…
The objectives of this study were to investigate the absorption and preliminary safety of activated carbon(AC) refined from Makino bamboo, Moso bamboo and Japanese cedar charcoals with carbon dioxide(CO2) at an 800 and 900°C activation temperature with 90, 120 and 150 min of activation time. The yield ofAC was from 47…
Pr3+ doped mesoporous TiO2 photocatalysts with a different molar ratio of Pr to Ti were prepared by a hydrothermal method using triblock copolymer as the template. The as-prepared samples were systematically characterized by X-ray diffraction, N2 adsorption-desorption, X-ray photoelectron spectra, transmission electro…
α-Ge nanowires with seven different atomic configurations such as linear, zigzag, ladder, triangular, square, dumbbell and hexagonal have been studied by means of density functional theory (DFT) calculations. The calculations have been made in self consistent manner using generalized gradient approximation (GGA) excha…