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。
The thickness dependence of electrical transport and magnetization of ultrathin La0.7Sr0.3MnO3 films has been investigated using epitaxial La0.7Sr0.3MnO3(LSMO)/SrTiO3 multilayers prepared by pulsed laser deposition. Layer thicknesses range from 1.9 to 10 nm for both constituents. Microstructural characterization by x-…
The method of Voronoi polyhedra is used to introduce the concept of nth neighbor. For hard spheres a theoretical dependence of the mean distance between the nth neighbors on the coefficient of filling was obtained. A simple formula was obtained to estimate the mean distance between the nth neighbors.
Adsorption and coadsorption of nitric oxide (NO) and carbon monoxide (CO) on the Pd(111) surface are studied by combining first principles (FP) calculations and Monte Carlo (MC) simulations. From FP adsorption energies and molecule-molecule interactions we construct an interaction model, which is used in MC. We do sev…
The blends of polyvinylalcohol with collagen hydrolysate were studied from the point of view of the effect of collagen hydrolysate on thermal degradation and processing properties. Elimination of deliberated acetic acid in reaction with NH2 groups of CH can protect PVA against acidic catalysis of degradation. Using ta…
PbS nanocrystalline thin films were prepared by Chemical Bath Deposition (CBD) technique. A comparative study between "standard" and "nanocrystalline" PbS thin films was performed. We denoted "standard" the PbS film with a good photosensitivity for to use as IR detector. This film was deposited after 1 hour from chemi…
Effect of grain size on magnetoresistance (MR) and electrical and magnetic properties of double perovskite Ba2FeMoO6 (BFMO) have been investigated. BFMO samples with different grain size have been prepared by the conventional solid state reaction followed by sintering in a stream of 5% H2/Ar at 1100 °C with various si…
Abstract This paper describes the Raman and infrared spectroscopy of SrSO 4 or celestine from the Muschelkalk of Winterswijk, The Netherlands. The infrared absorption spectrum is characterised by the SO 4 2- modes V 1 at 991 cm -1 , v 3 at 1201, 1138 and 1091 cm -1 , and v 4 at 643 and 611 cm -1 . An unidentified band…
The fatigue of copper single crystals, oriented for single slip, was studied using electron channelling contrast imaging (ECCI) in a scanning electron microscope. This technique allows the detection and characterization of dislocation structures in bulk specimens. This paper presents ECCI images showing dislocation ar…
Abstract Hydrothermal experiments were performed at 100 and 200°C and at different clay:water ratios in order to investigate the transformation of smectitic layers during the alteration of a montmorillonitic starting material. This study focused on three phenomena: (1) the amount and localization of charge within the…
Abstract The effect of overdrive addressing on the optical response of a twist nematic device was assessed both theoretically and experimentally. Experimental results on the transient optical response were in excellent agreement with the simulated responses, where the hydrodynamic flow and multiplexing addressing show…
Abstract This paper deals with the gas absorption behavior of polymer systems. The emphasis is on the difference between filled and unfilled polymers to explain heterogeneous nucleation in filled polymers. A Foaming Process Simulator has been built to study the gas absorption. It consists of a test chamber that holds…
Abstract A kaolinite–nylon 6 intercalation compound was prepared by the polymerization of 6-aminohexanoic acid (AHA) in the interlayer space of kaolinite. The intercalation of AHA was achieved by a guest displacement reaction using a kaolinite–methanol intercalation compound as an intermediate. After AHA dissolved in…
BACKGROUND: Collagens have the well-known ability to spontaneously self-associate to form fibrils at physiological temperature and neutral pH in vitro and in vivo. Because solar UV may photochemically alter collagen, the kinetics of fibril formation may be modified. Thus, we have begun a systematic study of the effect…
The glass transition of glucose, fructose, lactose, maltose and sucrose solutions at maximum cryo‐concentration was studied by Dynamic Mechanical Thermal Analysis (DMTA), using the disc bending technique. The glass transition temperatures were determined from the peaks in the loss modulus E ′′, which corresponds theor…
The results of a study on the thermal shock behavior of a high‐temperature refractory ceramic that is used as a furnace liner in the melting of steels are presented in this paper. The experimental studies show that thermal shock damage initiates by edge cracking after the first shock cycle. Subsequent subcritical crac…
The presence of sulphate, bicarbonate and orthophosphate can change the type of solid present in systems containing cupric ion or cupric hydroxide solids. In some cases, a short-term reduction in copper solubility is realized, but over longer periods of time formation of basic cupric sulphate (brochantite) and even cu…
Attempts to immobilize a series of Dawson type heteropolyanions (HPAs) by anodization and the use of polymeric, polyvinylpyridine (PVP), and conducting pyrrole and N-methylpyrrole, films has been undertaken. A stable film of the Dawson Parent, [P2W18O62]6–, HPA was obtained on an anodized carbon electrode, the film ex…
Shows the necessity of developing powerful 3D CAD‐systems for the textile and clothing industry. The connection between 2D and 3D CAD‐systems enables the user to prepare a collection more quickly and accurately. Applications could be the drape behaviour of the fabric, the deformational behaviour of fabrics when coveri…
Abstract Thermosetting phenolic resins, bearing varying extents of propargyl ether groups (PN resins), have been synthesized by the Williamson reaction of a novolac with propargyl bromide and the products characterized. The resin precursors were cured through Claisen rearrangement of the propargyl ether groups and the…
Abstract With the first version of the IDC IDC is the acronym for the International Data Centre, IMS for the International Monitoring System and CTBT for the Comprehensive Nuclear-Test-Ban Treaty. software all known radionuclides, less the natural ones and one “naturalised” man-made one, caused a spectrum measured in…