Materials Literature
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A series of metal complexes were achieved from the metal-assisted solvolysis reaction of di-pyridylketone azine (dpka). The tetranuclear nickel cluster , [Ni(2)[dpk(O)(OH)][dpk(O)(OCH(3))](N(3))(2)](2), is centrosymmetric with a central core described as an edge-shared triangle core. Neighboring Ni(II) ions are altern…
We suggested liquid phase patterning (LPP) of ceramics and fabricated nano/micropatterns of ceramic thin films in the solutions. Molecular recognitions of functional groups of self-assembled monolayer (SAM) were utilized for site-selective deposition (SSD) of oxides based on crystallography, interfacial chemistry and…
The synthesis of 3,4-alkoxythieno[2,3-b]thiophene derivatives has been developed from the readily accessible dimethyl or diethyl 3,4-dihydroxythieno[2,3-b]thiophenedicarboxylates. The yields for the dialkoxy derivatives were strongly dependent both on the base and the alkylating agent used for the nucleophilic substit…
This paper investigates the characteristics of electromagnetic wave propagation in biaxially anisotropic left-handed materials (BA-LHMs) theoretically and numerically.We discuss under what conditions the anomalous refraction or reflection will occur at the interface when a plane wave passes from one isotropic right-ha…
The definition of a nanocomposite material has broadened significantly to encompass a large variety of systems made of dissimilar components and mixed at the nanometer scale. The properties of nanocomposite materials also depend on the morphology, crystallinity, and interfacial characteristics of the individual consti…
Molecular dynamics computer simulation has been applied to inverse power or soft-sphere fluids, in which the particles interact through the soft-sphere pair potential, phi(r) = epsilon(sigma/r)(n), where n measures the steepness or stiffness of the potential, and epsilon and sigma are a characteristic energy and dista…
The influence of chemical treatments on the interfacial adhesion of sisal fibres and biodegradable matrices were studied in the present work. For that purpose, four different polymers were used: polycaprolactone (PCL), cellulose acetate, MaterBi Z (a commercial starch/polycaprolactone blend) and MaterBi Y (a commercia…
Hexagonal, twin-free HoMnO3 (0001) films of 25–240nm thickness were grown epitaxially on Y2O3:ZrO2(111) substrates using pulsed laser deposition. Ferroelectric polar order and Mn3+ antiferromagnetism were observed by optical second harmonic generation. Magnetization data reveal Ho3+ ordering which is, with subtle devi…
Some β-amino alcohols compounds in the series of 1,3-bis-dialkyl aminopropan-2-ols referred to as -apo- , where , 3 and 4, were tested as volatile corrosion inhibitors for brass in simulated atmospheric water using potentiodynamic, potentiostatic current transient, electrochemical impedance spectroscopy, gravimetric,…
ABSTRACT: Time-resolved small-angle X-ray scattering (SAXS) was used to examine the kinetics of the transition from hexagonal (hex) cylinders to body-centered cubic (bcc) spheres at various temperatures in poly(styrene-bethylene-co-butylene-b-styrene) (SEBS) in mineral oil, a selective solvent for the middle ethylene-…
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While a large number of peaks and defect centers have been chronicled in natural diamonds using UV-Vis absorption, cathodoluminescence, and photoluminescence spectroscopy (see, e.g., However, visual assessment of fluorescence and phosphorescence tells only part of the story. The color discerned by the unaided eye may…
The influence of phosphate of aluminum (PA) on the corrosion inhibition of mild steel in phosphoric acid solution was studied using the weight-loss method. The electrochemical performance of the inhibitors was also investigated through potentiodynamic polarisation and EIS measurements. The inhibition efficiency of inh…
In this study, our goal is to obtain lower density of ethylene-vinyl acetate copolymer (EVA)/ethylene-1-butene copolymer (EtBC) foams without sacrificing mechanical properties. For this purpose EVA/EtBC/organoclay (Cloisite 15A, Closite 30B) nanocomposite foams were prepared. To investigate the effect of compatibilize…
The substitution of cobalt and nickel for manganese in the perovskite manganate LaBiMn2O6+δ has been realized, leading to the perovskites LaBiMn2−MxO6+δ, with M = Co, Ni and 0 ≤ x ≤ 2/3. In contrast to the literature these phases are found to be orthorhombic with Pnma symmetry. More importantly, it is shown that ferro…
In this article a method is presented to prepare MCC from cellulose pulp employing an environment-friendly, effective two-step radiation-enzymatic depolymerisation process. The process was grounded on the radiation degradation by means of an electron beam to initially depolymerise the pulp prior to enzymatic hydrolysi…
Since Sumio Iijima identified the hollow Carbon Nanotubes (CNTs) in the early 1990s, there have been significant research efforts to synthesise inorganic nanotubes of various solids. Generally, the formation of tubular nanostructures requires layered, anisotropic, or pseudo-layered crystal structures. Inorganic nanotu…
We have established a fabrication process for conductive carbon nanotube (CNT) tips for multiprobe scanning tunneling microscope (STM) with high yield. This was achieved, first, by attaching a CNT at the apex of a supporting W tip by a dielectrophoresis method, second, by reinforcing the adhesion between the CNT and t…
We have developed a numerical model to simulate the hydrogen desorption profiles for pure iron and eutectoid steel, which is obtained in thermal desorption analysis (TDA). Our model incorporates the equation of McNabb and Foster without the hydrogen diffusion term combined with the Oriani's local equilibrium theory. I…
We describe the integration of optically pumped silicon nanocrystals (Si-ncs) embedded in SiO(2) with low loss silicon nitride slab waveguides. An emission waveguide containing Si-ncs with a broad band emission centered at 850 nm, together with a low loss transmission silicon nitride waveguide forms a two section devi…