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。
Lead-free sodium–potassium–bismuth–titanate (Na 1- x K x ) 1/2 Bi 1/2 TiO 3 was prepared by a traditional solid-state reaction method. The temperature dependences of dielectric constants and piezoelectric properties were measured. The diffuse phase transition behavior of the solid solutions with increasing potassium c…
We report a new self-assembly pathway that leads to supported and hierarchically organized gold nanoparticle mesostructure arrays on solid substrates such as glass slide, thermal oxide, photopolymer film, and mica. Using the nanoparticle micelle as a building block, hierarchical gold nanoparticle mesostructure arrays…
The article offers comparative study of two nanocrystalline (50 and 100 nm averaged grain size) and two coarse-grain (1.2 and 10 µm averaged grain size) ceramics by means of Fourier transform infrared spectroscopy in a broad temperature range (10–570 K). Far infrared reflectivity spectra were fitted with the factorize…
This paper discusses light scattering by small particles in the neighborhoods of plasmon resonances in the small-dissipation limit. The concept that the scattering has a dipole character (Rayleigh scattering) cannot be used in this limit, and the corresponding formulas must be replaced by others, in which the main rol…
In this paper, the outline of the development history of HVDC cable with nanocomposite material is introduced. Nano-sized MgO-filler added into XLPE, which had been developed for HVDC cable insulation, was not investigated from the view point of nanocomposite material until 2001. Since then, nano-scale observation of…
Abstract New development in the studies of nanocomposites based on polymer matrixes and layered double hydroxides (LDHs) in recent years are reviewed combining our relative research work, among which the synthesis techniques, the physicochemical characterizations, and the improved material properties are especially di…
The temperature dependence of the dynamic compressive stress-strain behavior of a NiTi shape memory alloy (SMA) has been determined at a strain rate of 4.35 × 10 2 s -1 with a split Hopkinson pressure bar (SHPB) modified for obtaining the dynamic stress-strain loops at constant strain rates.The environmental temperatu…
Abstract Freestanding individual single‐walled carbon nanotubes (SWNTs) are successfully produced using plasma‐enhanced (PE)CVD. The quantitative effects of plasmas on SWNT growth are also discussed on the basis of detailed plasma measurements and simple calculations. According to these quantitative results, it is fou…
Two imidazole derivatives, 2,2‘-(2,5-thiophenediyl)bis[4,5-diphenyl-1 H -imidazole] ( 1 ) and 2,2‘-(1,4-phenylene)bis[4,5-diphenyl-1 H -imidazole] ( 3 ), were synthesized and crystallized from different solvents. The crystal solvates have different colors, and some of these compounds show piezochromism, photochromism,…
To increase the biocompatibility and durability of glutaraldehyde (GA)-fixed valves, a biological coating with viable endothelial cells (ECs) has been proposed. However, stable EC layers have not been formed successfully on GA-fixed valves due to their inability to repopulate. In this study, to improve cellular adhesi…
The crystal structures of approximants RECd 6 (RE = Tb, Ho, Er, Tm and Lu) have been refined from single crystal X-ray diffraction data. This work is a continuation of a previous study of MCd 6 approximants [1] in which the different types of disorder of the central Cd 4 tetrahedra located in the dodecahedral cavities…
A research on several characteristics such as volume breakdown and surface discharge of insulators for a termination of power transmission class high temperature superconducting (HTS) cable was performed. In this paper, we investigated the surface discharge of glass fiber reinforced plastic (GFRP) in the air, nitrogen…
International audience
Some 25 diseases are associated with proteins and peptides that assemble into amyloid fibrils composed of beta-strands connected by hydrogen bonds oriented parallel to the fiber long axis. There is mounting evidence that amyloid formation involves specific interactions between amino acid side groups, which bring toget…
We present the combined results of a computer simulation and adsorption isotherm investigation of CF4 films on purified HiPco nanotubes. The experimental measurements found two substeps in the adsorption data. The specific surface area of the sample and the coverage dependence of the isosteric heat of adsorption of th…
A series of compatibilized polyamide 6/polypropylene (PA6/PP) blends, of composition 70/30, 50/50, and 30/70 have been prepared in a twin screw extruder followed by injection molding. The four types of PA6/PP blends involved are the neat PA6/PP blends, PA6/PP/ethylene-octene copolymer (polyolefin elastomer, POE), PA6/…
The role of crude oil on carbon dioxide (CO2) corrosion has gained special attention in the last few years because of its significance when predicting corrosion rates. However, the complexity and variability of crude oils makes it hard to model its effects, which can influence not only wettability properties but also…
New hybrid organic/inorganic systems have been elaborated by insertion/grafting of thiophenecarboxylates into the layered transition metal hydroxides Cu 2 (OH) 3 (CH 3 CO 2 )·H 2 O and Co 2 (OH) 3 NO 3 . The Cu 2 (OH) 3.28 (TA) 0.72 ·0.08H 2 O ( 1; TA -: 3-thiopheneacetate), Cu 2 (OH) 3.04 (TDC) 0.48 ·1.84H 2 O ( 3; T…
An effect of nuclear elastic scattering (NES) on the energy transfer to plasma ions and electrons during (a) neutral beam injection (NBI) and (b) α-particle heating operations is examined on the basis of the Boltzmann-Fokker-Planck (BFP) equation for a beam ion and an α-particle in deuterium-tritium thermonuclear plas…
Processes of mechanical alloying of oxide-dispersion-strengthened reactor pressure-vessel steels by cold high-pressure torsion of a powder mixture of low-stable Fe 2 O 3 (Fe 3 O 4 ) iron oxides and the bcc matrix alloyed with Y and Ti have been investigated using Mössbauer spectroscopy, X-ray diffraction analysis, and…