Materials Literature
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Motivated by recent experimental results on model binary colloidal mixtures, especially for the glass transition, we investigate the phase diagram of two models of asymmetric binary mixtures: the hard sphere and the Asakura-Oosawa mixtures. This includes the binodals and the glass transition line, computed in the effe…
We report dynamic Monte Carlo simulations of polymer crystal nucleation initiated by prior spinodal decomposition in polymer solutions. We observed that the kinetic phase diagrams of homogeneous crystal nucleation appear horizontal in the concentration region below their crossovers with the theoretical liquid-liquid s…
An analysis scheme for the formation of the inclusion complexes in water is presented. It is exemplified for the case where the host is alpha-cyclodextrin and the guest is a linear alcohol (1-propanol to 1-octanol) or the isomers of 1-pentanol. Eight transfer isobaric heat capacities, DeltatCp, involving different ini…
The results of in situ manipulation and electrical transport characterization of individual multiwalled carbon nanotubes (MWCNTs) grown on a nickel tip by using a piezoelectric nanomanipulation system operating in a scanning electron microscope chamber have been reported. The growth of MWCNT directly on nickel wire by…
A facile and novel method for the synthesis of magnetite-polymer hybrid microspheres with controllable structure is reported. On the basis of the interactions between polymers and magnetic nanocrytals, which are coated with a primary oleic acid layer, a variety of magnetic microspheres with well-tailored structure are…
This PDF file contains the front matter associated with SPIE Proceedings Volume 6648, including the Title Page, Copyright information, Table of Contents, Introduction, and the Conference Committee listing.
Abstract We investigated the relationship between the morphology and viscoelasticity of epoxy/silica hybrid materials manufactured via two different processes: simultaneous formation of epoxy and silica phases and sequential formation of silica phase in the prepared epoxy phase. The glass transition phenomena of the h…
Ardennite-(V), ideally Mn4[Al4(AlMg)][Si5V]O22(OH)6, is the analogue of ardennite, ideally Mn4[Al4(AlMg)][Si5As]O22(OH)6, with V dominant at the T4 site. The history of the discovery of ardennite is outlined, with special accent on its chemical composition; revision of the old literature evidenced that even if vanadiu…
A one-step process for the synthesis of La 2 NiO 4+ δ (LNO) mixed-conductive oxide was reported. During the process, LNO powders were synthesized via the combustion of mixtures with the desired metal ions as cation precursors and glycine as fuel. X-ray diffraction (XRD), scanning electron microscopy (SEM), dilatometry…
Abstract Nucleation parameters such as solubility, induction period, interfacial energy and metastable zone width have been investigated for the aqueous solution growth of a semi‐organic nonlinear optical (NLO) material of L‐Proline cadmium chloride monohydrate (L‐PCCM) single crystal. Metastable zone width and induct…
Density functional calculations are performed to study the H-atom diffusion on titanium dioxide (110) surface in the cases of water-molecule dissociation and splitting of the adjacent hydroxyl OH pair. It is shown that, when a water molecule is adsorbed at a surface oxygen-vacancy site, a fragment H atom of the water…
Films of hyaluronan (HA) and a phosphorylcholine-modified chitosan (PC-CH) were constructed by the polyelectrolyte multilayer (PEM) deposition technique and their buildup in 0.15 M NaCl was followed by atomic force microscopy, surface plasmon resonance spectroscopy (SPR), and dissipative quartz crystal microbalance (Q…
The luminescence properties of doubly activated terbium aluminium garnet samples were investigated in the present study. Commercial Tb 3 Al 5 O 12 :Ce 3+ (TAG:Ce) shows the typical Ce 3+ ion luminescence of the allowed Ce 3+ d–f transition. Eu 3+ co-doping, however, reveals interesting results. In TAG:Ce, Eu, both Ce…
Abstract Poly(ethylene terephthalate) (PET)/polyhedral oligomeric silsesquioxane (POSS) nanocomposites were prepared by in situ polymerization. Light scattering measurement suggested that there is significant change in molecular weight arising from gel formation by chemical crosslinking during polymerization. The ther…
Eu(3)(AsS(4))(2) and A(x)Eu(3-y)As(5-z)S(10) (A = Li, Na) are the members of a new thioarsenate family. They feature As(5+) and As(3+) centers, respectively. The rhombohedral Eu(3)(AsS(4))(2) features a new structure type consisting of eight-coordinate Eu(2+) centers and AsS(4)(3-) anions, whereas the monoclinic A(x)E…
Sodium bismuth titanates Na 1/2 Bi 1/2 TiO 3 (NBT) doped with 0–3 wt% Er 2 O 3 were prepared by the conventional solid‐state reaction method. The X‐ray diffraction results revealed that the sintered Er‐doped NBT ceramics exhibited a pure perovskite structure with Er 3+ concentrations ranging from 0 to 1 wt%. At a low…
We discuss the orbital magnetism and the Hall effect in a weak magnetic field in two-dimensional Dirac fermion systems with an energy gap. This model is related to the graphene sheet, zero-gap organic conductors, and the $d$-density-wave state of cuprates. We found strong diamagnetism and anomalous Hall conductivity e…
Abstract Bacterial cellulose (BC) in an NaOH/urea aqueous solution was used as a substrate material for thefabrication of a novel regenerated cellulose membrane. The dissolution of BC involved swelling BC in a 4 wt % NaOH/3 wt % urea solution followed by a freeze–thaw process. The BC solution was cast onto a Teflon pl…
Multiwalled carbon nanotubes (MWCNTs) have been employed for the first time as sorbents for the isolation of basic proteins from other protein species in biological sample matrices by solid-phase extraction (SPE). A microcolumn packed with MWCNTs was incorporated after appropriate pretreatment into a sequential inject…
The textures exhibited by nematic liquid crystals confined to cylindrical capillaries under homeotropic anchoring have been studied for nearly thirty years. One of the reasons behind this maintained interest is that the processing of many high-performance fibers including carbon fibers and spider silks involves these…