Materials Literature
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Here we present a useful methodology for rapid screening of crystallization conditions and phases in the pharmaceutical industry using a multiwell setup with video-microscopy developed in our laboratory. This methodology which detects, from small quantities of an active pharmaceutical ingredient, crystal habit modific…
A series of new molybdenum(VI) dioxo complexes of the type [MoO(2)ClL(X)] with potentially monoanionic phenolate ligands L(X) (L = 4,6-di-tert-butyl-2-{[(X)methylamino]methyl}-phenolate; L(OMe), where X = 2'-methoxyethyl; L(SEt), where X = 2'-ethylthioethyl; L(NEt2), where X = 2'-diethylaminoethyl; and L(NMe2), where…
We demonstrate optical waveguiding in recently discovered free-standing bent-core liquid-crystal filaments. The bent-core liquid-crystal molecules in air self-assemble into a cylindrical geometry that is "solidlike" along the radial direction of the filament and liquid in the axial direction of the filament. These fil…
We have used time-resolved soft x-ray spectroscopy to investigate the electronic structure of optically excited cuprous oxide at the $\text{O}\text{ }K$ edge and the $\text{Cu}\text{ }{L}_{3}$ edge. The 400 nm optical excitation shifts the Cu and O absorptions to lower energy, but does not change the integrated x-ray…
The heat capacity, C(p), of hemimorphite, Zn(4)Si(2)O(7)(OH)(2)center dot H(2)O, was measured using relaxation calorimetry and DSC methods in the temperature range 5 to 464 K and that of dehydrated hemimorphite, Zn(4)Si(2)O(7)(OH)(2), from 5 to 764 K. The experimental C(p) data for hemimorphite show a prominent lambda…
Abstract Mass transfer and electrochemical phenomena in the membrane electrode assembly (MEA) are the core components for modeling of solid‐oxide fuel cell (SOFC). The general MEA model is simply governed with the Stefan‐Maxwell equation for multicomponent gas diffusion, Ohm's law for the charge transfer and the curre…
We present the results of thermal conductivity $(\ensuremath{\kappa})$ and heat-capacity $({C}_{p})$ measurements for the series of ${[{\text{PbZn}}_{1/3}{\text{Nb}}_{2/3}{\text{O}}_{3}]}_{1\ensuremath{-}x}{[{\text{PbTiO}}_{3}]}_{x}$ $(\text{PZN-}x\text{PT})$ single crystals with $0\ensuremath{\le}x\ensuremath{\le}1$.…
Abstract Large-size slewing bearings are usually surface hardened by means of induction heating. The load-carrying capacity of the bearing is dependent on, among others, the depth of the hardened layer, i.e., case depth (CD). It is of crucial importance for bearing manufacturers to ensure that sufficient CD is produce…
Abstract BACKGROUND: Centrifugal spinning is a novel fibre‐forming process that readily permits the incorporation of additives while avoiding the thermal damage often associated with conventional melt spinning. Centrifugal spinning of a viscous solution of poly(3‐hydroxybutyrate) (PHB) mixed with pectin was used to fa…
Bimetallic Pd−Au nanoclusters were prepared on SiO 2 /Si(100) via amorphous solid water (ASW) as buffer layer. Selective growth pathways have led to segregated palladium and gold clusters or alloy bimetallic crystallites. Morphology and chemical composition were determined by AFM, SEM, and HR-TEM coupled to EDX analys…
A type of red luminescent Sr 3 Al 2 O 6 :Eu 2+ , Dy 3+ phosphor powder is synthesised by sol–gel–combustion processing, with metal nitrates used as the source of metal ions and citric acid as a chelating agent of metal ions. By tracing the formation process of the sol–gel, it is found that it is necessary to reduce th…
The electronic structures, magnetism, and half-metallicity of half-Heusler alloys XYZ (X = Mn, Ni; Y = Cr, Mn; Z = As, Sb) are investigated by means of the full-potential linearized augmented plane wave method within the generalized gradient approximation. We consider three types of atomic ordering (i.e., α, β, and γ…
Abstract: The paper summarizes crystal–chemical data and describes the IMA-accepted nomenclature of lovozerite-group minerals (LGM). The lovozerite group includes nine zeolite-like cyclosilicates with the general formula A3B3C2MSi6O12O6x(OH)xnH2O,
Motivated by quantum chemistry calculations, showing that molecular adsorption in graphene takes place on preferential sites of the honeycomb lattice, we study the effect of an isolated impurity on the local electronic properties of a graphene monolayer, when the impurity is located on a sitelike, bondlike, or hollowl…
Deformation behavior of polyethylene/modified montmorillonites with polymerizable surfactant (PE/P-MMT) nanocomposite with strong interfacial interaction was studied by means of morphology observation and X-ray scattering measurements. The orientation of PE chains was accompanied by the orientation of well-dispersed M…
The IR and Raman spectra of the Fe(3)Al(2)Si(3)O(12) almandine garnet were simulated using the periodic CRYSTAL code with an all-electron Gaussian-type basis set and the hybrid B3LYP functional. The wavenumbers of the 25 Raman-active modes (3 of A(1g), 8 of E(g), and 14 of F(2g) symmetry) and 34 F(1u) IR-active modes…
The transport and noise properties of ${\text{Pr}}_{0.7}{\text{Ca}}_{0.3}{\text{MnO}}_{3}$ epitaxial thin films in the temperature range from room temperature to 160 K are reported. It is shown that both the broadband $1/f$ noise properties and the dependence of resistance on electric field are consistent with the ide…
Novel polyfunctional small amphiphilic peptide dendrimers characterized by incorporation of a new core compounds - tris-amino acids or tetrakis-amino alcohols that originated from a series of basic amino acids - were efficiently synthesized. These new core elements yielded molecules with multiple branching and (+5)/(+…
Microporous layers on titanium (Ti) are formed by chemical treatment in highly concentrated alkaline media, and their properties and growth mechanism are examined using electrochemical techniques, in situ resistometry, scanning electron microscopy (SEM), grazing-incident X-ray diffraction (GIXRD), and glow discharge o…
The power-law dependence of strength on strain rate provides a measure of the strain-rate sensitivity. In general, strength increases as grain size decreases from the microscale into the nanoscale regime for many cubic metals. The method of microscratch testing is used to measure microhardness in order to evaluate mat…