Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Abstract Metal pellets of silver and copper for surface‐enhanced Raman scattering (SERS) spectroscopy were prepared by compression with different pressures. It was found that the SERS activity of the pellet could be controlled by pressure. Enhanced Raman scattering properties of the metal pellets in the presence of ad…
This paper presents an experimental and theoretical investigation of the microstructure formation and segregation behaviour of a new austenitic steel based on the Fe-Mn-C alloy system. In order to accomplish the simulations, a modification of the model by Cha et al. is introduced. It includes a correction which compen…
A study of the properties of water-soluble tetrasubstituted cationic aluminum phthalocyanine (AlPcN(4)) revealed efficient binding of this photosensitizer to phospholipid membranes as compared with tetrasulfonated aluminum and zinc phthalocyanine complexes. This also manifested itself in enhanced photodynamic activity…
Silver nanoparticles with spheres, rods have been prepared by a pulse sonoelectrochemical technique from an aqueous solution of AgNO 3 in the presence of sodium dodecyl sulfate C 12 H 25 NaO 4 S -(SDS). The as-prepared silver nanoparticles are characterized by electron microscopy (TEM, SEM), powder X-ray diffraction (…
A method for the galvanic deposition of iron-group metals onto porous silicon (por-Si) substrates has been developed. The morphology and phase composition of por-Si nanocomposites containing galvanically deposited particles of Fe, Co, and their mixtures have been studied by scanning electron microscopy (SEM), ultrasof…
The electrochemical behavior of composite materials based on phenyl substituted cobalt porphyrins and Nafion is studied. Several cobalt porphyrins with presumably predictable variation of their hydrophilic/hydrophobic properties due to different donor and acceptor substituents in the para position of phenyl rings are…
The use of unconventional methods for the preparation of Nanosized catalysts for the selective hydrogenation of acetylene and its homologs is considered. Based on published data and experimental data obtained in this work, it is shown that catalysts based on nanoparticles of palladium have a high activity, although th…
La 1-x Sr x MnO 3 (x = 0.1, 0.2, and 0.3) nanoparticles (LSMO NPs) were successfully synthesized by a simple sonochemical-assisted method. The prepared samples were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The compositions of samples were…
Chemistry gives us the ability to manipulate atoms and molecules into nanometer and micrometer scale building blocks, while the science of crystallography is concerned with the spatial arrangement of atoms, ions, and molecules and thus the morphology and structures of materials. Complex three-dimensional ZnS nanostruc…
Abstract The interface formation between Au polycrystalline substrate kept at temperature of liquid nitrogen and Al deposit and its evolution during sample thermal treatments have been investigated by means of XPS. The intermixing of the Al and Au atoms at the interface occurred readily already at temperature of liqui…
In this work the magnetocaloric effect in ferrimagnetic rare-earth iron garnets R3Fe5O12 where R=Y and Dy was theoretically investigated considering a model Hamiltonian, which takes into account three coupled magnetic sublattices in the mean field approximation. In Dy3Fe5O12 the inverse magnetocaloric effect was predi…
ZnAl 2 O 4 : Cr 3+ (Co 2+ ) nanopowders were prepared by hydrothermal method and annealed at various temperatures. The samples were characterized by X – ray diffraction, transmission electron microscopy, photoluminescence and photoluminescence excitation spectra. The results show that crystal structure and optical pro…
International audience
This study presents deodorizer (DO) distillate as a cheaper source of fatty acid to prepare alkyd resins. DO distillate-based alkyd resins provide encouraging film properties, except for color and clarity of resins. Thus, DO distillate based fatty acids are being explored as raw materials for alkyd resins in architect…
During the calibration or irradiation of dosemeters, typical irradiation geometries (collimated beams) and source-to-detector distances (1-5 m) lead to the fact that for photon energies above a few hundred keV, the secondary charged particle equilibrium is usually not ensured. The reason is that the effective beam rad…
Symmetry and electrostatic equilibrium in europium compounds are revisited with the aim of improving the role of obtaining the charge factors ( g j ), of the nearest neighbours (NN) of the lanthanide site, j running over the NN, now using the g j vs. R j (the NN position) linear behaviour. An inferior limit of the g j…
Simple strontium peroxodisulfate SrS 2 O 8 · 4H 2 O was synthesized by the reaction of solid Sr(OH) 2 · 8H 2 O taken in 30% excess with an aqueous solution of (NH 4 ) 2 S 2 O 8 ; simple magnesium peroxodisulfate MgS 2 O 8 · 6H 2 O was synthesized by the reaction of an aqueous solution of BaS 2 O 8 with a stoichiometri…
Abstract— Intensive research in bio-engineering has been conducted in the search for flexible biomaterials that could support cell growth and cells attachment. Flexible synthetic materials that support cell growth without the aid of synthetic extracellular matrix proteins are still rare. Cholesteryl liquid crystal c…
Sn-doped ZnO (x=0·0, 0·05, 0·10 and 0·15) films as antireflective coating (ARC) were successfully synthesised by electron beam evaporation method. X-ray diffraction (XRD) analysis confirmed that the as deposited films were hexagonal crystal structure of ZnO which is deteriorated by Sn dopant addition. Investigation of…
The River Axe, a lowland river in South-west England is used as a model system for describing how ecological status assessments can be applied in practice. Seasonal sampling over a three-year period established a strong baseline against which future changes could be assessed. These indicated that the river was enriche…