Materials Literature
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In this study, we simulate the motion and reformation of polymer chain in the nanoscale fluid flow motion of the DPD (Dissipative Particle Dynamics) solvent. The behavior of polymer chain through DPD solvent is studied for 2D and 3D considerations. We implement two body forces of Poiseuille flow and electroosmotic flo…
One way to increase the value of renewable energy is to use a high efficiency reversible solid oxide fuel cell (SOFC) as an energy storage device. The utilization of SOFC for distributed generation (DG) requires the development of inverters that convert variable DC power into AC power. This paper addresses the integra…
Silver‐doped As33S>67 and As33S33Se33 bulk glasses studied by means of Scanning Electron Microscopy (SEM) and infrared reflectivity, exhibit two‐phase glasses, for a wide range of Ag concentration. Using the Effective Medium Approximation we show that the structure is actually a proper average of two components, a Ag‐…
We report the first diode pumped laser operation of thulium-doped lutetia in the 2 µm wavelength range. Output powers of more than 40 W and slope efficiencies of up to 42 % with respect to the incident pump power were achieved at room temperature.
The synthesis of a novel class of hexa-arm molecules with C(3d) symmetry via a simultaneous six-fold nucleophilic substitution reaction from 1,4,5,8,9,12-hexabromododecahydrotriphenylene has been described.
The purpose of the study was to demonstrate the J-coupling connectivity network between the amide, aliphatic, and aromatic proton resonances of metabolites in human brain using two-dimensional (2D) localized correlated spectroscopy (L-COSY). Two different global water suppression techniques were combined with L-COSY,…
An solid, highly conductive to ions and with a three-dimensional superionic conductor (NASICON)-type structure, was developed by introducing pentavalent ions into NASICON-type . Because ion doping of the NASICON-type solid reduced the interaction between and the surrounding ions, the highest ion conductivity among the…
The far infrared radiance tourmaline composite materials have been successfully prepared. From the XRD results, the composite materials were composed of tourmaline and transition metal oxides（Fe2O3, MnO2, Co2O3）and cerium oxide. Under SEM, the spherical particles of transition metal oxides were adsorbed by the flake p…
Ca3Sc2Si3O12:Ce3+ phosphor was synthesized by what we have named Emulsion–Evaporation (EE) method, where W/O emulsions of metallic ions and precipitants were mixed and condensed in a rotary evaporator. The EE-derived precursor was amorphous below 600°C and directly crystallized to CSS above 800°C without passing any i…
Arrays of vertically aligned single‐walled carbon nanotube bundles, SWCNTs, have been synthesized by simple alcohol catalytic chemical vapor deposition process, carried out at 800 ∘C. The formed SWCNTs are organized in small groups perpendicularly aligned and attached to the substrate. These small bundles show a const…
We propose a method for stabilizing and modifying the dispersed phase of a liquid crystal-in-water (LC/water) emulsion using the sequential adsorption of polyelectrolytes and magnetite nanoparticles, which leads to the formation of LC-filled nanocomposite microcapsules. The obtained samples were studied by optical mic…
By varying the dopant-to-pyrrole ratio in a wide range from 0 to 60% a series of 5-sulfosalicylic acid sodium doped polypyrrole was synthesized in situ in aqueous solution with ferric chloride as the oxidant. The resulting polypyrroles were characterized with the four-probe, laser light scattering and thermo-gravimetr…
The paper reports on the performance of highly dispersed synthetic magnesium silicate as a filler of the styrene–butadiene rubber (SBR). The magnesium silicate has been precipitated and characterized by determination of particle size distribution, electrokinetic potential, nitrogen adsorption/desorption isotherms and…
A copper(I) thiocyanate coordination polymer [Cu(Phen)(μ-NCS)] n ( I ) (Phen = 1,10-phenan-throline) has been synthesized by the low-temperature solid-state reaction. Single-crystal X-ray analyses reveal that compound I possesses a type of one-dimensional (1D) framework structure. Polymer I was characterized by elemen…
Micronized BaSO4 particles with a narrow size distribution were produced by using a double-jet reactive crystallizer. Polyethylenimine (PEI) acted as a growth/agglomeration inhibitor at a high PEI dosage, hence the particle size and size distribution width decreased, and BaSO4 crystals with the desired qualities were…
In the present work, at first, the metal complexes [OsII (phen) 2 (phen-dione)](PF6)2.2H2O, [OsII (phen)(bpy) (phen-dione)](PF6)2.2H2O and [OsII (bpy)2(phen-dione)](PF6)2.2H2O, (phen = 1,10-phenanthroline, bpy = 2,2/: bipyridil and phen-dione = 1,10-phenanthroline-5,6-dione) have been synthesised as photo sensitizers…
A model is proposed for the dynamics of spreading of a liquid drop under the action of capillary forces in the case of partial wetting. Deviation from the spherical cap profile is taken into account. The spreading kinetics is obtained using a dynamic contact angle boundary condition in which the velocity of the contac…
SiC/SiC composites are studied for their potential use in the next generation of nuclear reactors. A multiscale approach is under development to construct a predictive modelling of their complex damageable mechanical behaviour due to their heterogeneous microstructure. This paper focuses on the damage characterisation…
Porous calcium phosphate cements (CPCs) were fabricated using gelatin granules as the porogen. As the amount of gelatin was increased from 0 to 43 vol%, the porosity notably increased from 3 to 47 vol%, while the compressive strength decreased from 23 to 14 MPa; however, these values are still expected to be reasonabl…
To explore the structure and property features of complex aggregates assembled by polymer and organic dye molecules in microcosmic soft confined space, a three-dimensional microconfinement is constructed by W/O inverse emulsion as the site for the complex aggregation of 5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrin…