Materials Literature
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In this work, the spinnging process of tussah silk/cellulose blend fiber using ionic liquids as solvent has been studied and the optimum spinning parameters were obtained from the orthogonal test. The structures morphology and properties of blend fibers were investigated through mechanical properties, SEM and FTIR. Th…
Intermediate band solar cells (IBSCs) have been proposed as highly efficient third generation photovoltaic devices. Quantum dot (QD) arrays produce mini-bands that are separated by a region of zero density of states from other states in the conduction band. Additional absorption from the valence band to the IB and the…
In this study, zeolite was prepared from fused fly ash with very little water treatment. The as-prepared zeolite was characterized by X-ray diffraction (XRD) and scanning electron microscope. XRD results showed that cancrinite was the major phase in the product. The influence of preparation conditions on the yield of…
In this paper, the patchouli oil complex microcapsules were prepared by complex coacervation method, with chitosan (CTS), quaternary ammonium salt of chitosan (HACC) and gum arabic (GA) as the wall materials, patchouli oil as the core materials. The surface morphology of microcapsules was characterized by scanning ele…
The complex [Ni(En) 2 ][Ni(CN) 4 ] · 3.5H 2 O ( I ) (En = ethylenediamine) was synthesized by the reaction of [Ni(En) 2 ](ClO 4 ) 2 and K 2 [Ni(CN) 4 ] in an H-shaped tube. The crystal structure of I has been determined by single-crystal X-ray analysis. The crystal of complex I is orthorhombic, space group Pnna with a…
An exact expression for the effective surface energy of monolayer formation during the growth of a two-dimensional isotropic nanowire according to the vapor-liquid-solid (VLS) mechanism is obtained with allowance for faceting of the crystal side surface. Conditions necessary for the stability of a drop at the top of t…
6LiF small neutron detectors with an optical fiber have been used to measure 6Li(n,α)T reaction rate distributions at thermal research reactors and accelerator facilities. In the present study, we developed an experimental method for the measurement of tritium production rate (TPR) of 6Li using this small detector in…
En este trabajo fue estudiado el sistema primer epoxico rico en zinc / acabado polisiloxano aplicado sobre laminas de acero al carbono laminado en caliente y sometido a camaras de corrosion acelerada (inmersion total, niebla salina, ciclo de corrosion y prohesion) por un periodo de hasta 5000 horas. Las probetas bajo…
This article has been retracted by the publisher.
The coordination polymer [Ca(H2O)2(HL)]n (1) (H3L = 2-propyl-1H-imidazole-4,5-dicarboxylic acid) has been hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction. Compound 1 possesses a novel 3-D structure constructed from 2-D layer motifs joined by μ5-HL2− units. Its thermal and…
The electronic structure, magnetic properties, and optical properties of Co-doped AlN are investigated based upon the Perdew—Burke—Ernzerhof form of generalized gradient approximation within the density functional theory. The band gaps narrowing of Al 1−x Co x N are found with the increase of Co concentrations. The an…
This paper reports that the 150-keV Mn ions are implanted into GaN thin film grown on Al 2 O 3 by metal-organic chemical vapour deposition. The X-ray diffraction reciprocal spacing mapping is applied to study the lattice parameter variation upon implantation and post-annealing. After implantation, a significant expans…
The crystallographic temperature factors ( B factor) of individual atoms contain important information about the thermal motion of the atoms in a macromolecule. Previously the theory of flexibility of active site has been established based on the observation that the enzyme activity is sensitive to low concentration d…
In the Ag–Ba–Si system the clathrate type I solid solution, Ba 8 Ag x Si 46- x , ranges at 800 °C from Ba 8 Ag 4.3 Si 41.7 [ a = 1.04309(3) nm] to Ba 8 Ag 5.4 Si 40.6 [ a = 1.04613(5) nm]. For all clathrate compositions in this homogeneity region (4.3 ≤ x ≤5.4) cubic primitive symmetry with space group P m 3 n was con…
Cu thin films sandwiched between Nb-doped TiO 2 (NTO) thin films were grown on glass substrates using tilted-dual target DC magnetron sputtering deposition. The thicknesses of the top and bottom NTOs were nominally 30 nm, and the thicknesses of the Cu films (t) varied between 1.5 nm and 50 nm. We measured the ellipsom…
In several fields of application it is important to apply components with a balanced combination of high strength, low density and a high chemical resistance. The aerospace sector uses titanium-based materials to manufacture lightweight parts of increased safety such as structural components, turbine disks and blades…
In the hot die forging, forging load and die stresses are important variables that affect the die life and selection of press capacity. During the die design and process planning stage, it is necessary to estimate these variables to avoid unexpected die failure and provide for necessary forging load to fill the die ca…
The surge test is a well-known offline method to determine the integrity of the turn-to-turn insulation of coils as they are found in transformers or induction machines. There are different methods used to evaluate the waveform obtained during the surge test. These methods include the examination of the zero crossings…
In this study SnCu solder spheres (Ø 270 μm, CR ~ 1 K/s) were investigated in order to verify the solidified microstructure according to the Sn-rich part of the SnCu phase diagram. The investigated alloys are Sn99.9, SnCu0.25, SnCu0.5, SnCu0.7, SnCu0.9, SnCu1.2, SnCu1.5, and SnCu3.0. In order to understand the solidif…
Co films with various thicknesses were selectively deposited as Cu capping layers by chemical vapor deposition technique. Selectivity of the Co deposition between Cu and dielectric surfaces was improved by both raising the deposition pressure and adopting a pre-clean process prior to the Co deposition. Degree of elect…