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。
In this letter, the broadband notch filter exhibiting a flattened bandstop spectral response is experimentally demonstrated for the first time by using the guided-mode resonance associated with the periodic subwavelength structure possessing asymmetric binary grating profiles. The proposed filter consisting of grating…
The crystal structure of vlasovite, Na-2 Zr (Si4O11), from the Kipawa alkaline complex, Quebec, Canada, monoclinic, a 11.0390(5), b 10.0980(3), c 8.5677(4) angstrom, beta 100.313(1)degrees, V 939.6(1) angstrom(3), space group 4,72/c. Z = 4, D (calc.) = 3.008 g.cm(-3), was refined to all R, index of 1.9% based oil 1352…
Equal-channel angular pressing (ECAP) process was applied to a 12 mm × 12 mm × 80 mm billet of pure copper (99.98 wt.%) at room temperature. The shear deformation characteristics, microstructure evolution, and tensile properties were investigated. A combination of high strength (∼420 MPa) and high elongation to failur…
Abstract The thin films containing transition metal complex tris(1,10‐phenanthroline) ruthenium(II) Ru(phen) 3 Cl 2 (abbr Ru(phen) 3 , phen=1,10‐phenanthroline), and 12‐molybdophosphoric acid [PMo 12 O 40 ] 3− (abbr PMo 12 ) were fabricated on quartz, silicon and ITO substrates by layer‐by‐layer (LBL) method. The LBL…
Abstract A three-dimensionally ordered array consisting of highly monodispersed nanoporous carbon spheres with a novel starburst structure was successfully fabricated via the self-assembly of mesoporous silica/carbon composite spheres and the subsequent dissolution of the silica templates.
High-temperature mass spectrometry was used to determine the Gibbs energies, activities, and chemical potentials of SrO and SiO2 in glasses and melts of the SrO-SiO2 system in the temperature range 1840–1970 K. Negative deviations from the ideal behavior were revealed in the system. The standard enthalpies of formatio…
A new conversion coating process for electrogalvanized (EG) steel based on a cerium nitrate (Ce[NO3]3) solution with some additives has been developed that reduces the total treatment time to 70 s. The corrosion current densities of untreated and treated EG samples have been monitored during exposure to 0.5 N sodium c…
ence, has been oriented to material science and Laser triggering in order to increase the reproducibility of excess of power production during loading of palladium with deuterium. Isoperibolic calorimetry in gas phase, isoperibolic and flow calorimetry with electrochemical systems have been carried out. Nuclear ashes…
Transparent artificial boundary conditions and an algorithm for computing the augmented scattering matrix are proposed for finding surface waves in a prescribed range of decay rates. An infinite-dimensional fictitious scattering operator is constructed that determines all waves decaying exponentially with distance fro…
The desorption of Cs and Na atoms from the corresponding layers applied to a gold film deposited on textured tungsten ribbon with a preferred orientation of the (100) surface is studied by thermal desorption spectroscopy with the products of thermal desorption scanned on a pulsed time-of-flight mass spectrometer. The…
An X-ray diffraction study of the electric field-induced metal–insulator transition (MIT) of a vanadium dioxide (VO 2 ) film on a sapphire (001) substrate, which exhibited MIT at a temperature of approximately around 68 °C with a three-order change in resistivity, was performed. A simple device fabricated using a VO 2…
Abstract This article describes the tuning of the electronic structures in a series of quasi-one-dimensional halogen-bridged Ni–Pd mixed-metal complexes, [Ni1−xPdx(chxn)2X]X2 (chxn = 1R,2R-diaminocyclohexane; X, Y = Cl or Br). In these compounds, planar [M(chxn)2] units are bridged by halogen ions (X), forming linear…
The anatase nanocondensates produced by energetic pulse laser ablation on Ti target under oxygen background gas have been observed by transmission electron microscopy. They were found to coalesce in approximately parallel orientation on the (001) plane to form dislocations and in twin orientation on the (112) plane to…
Hydrothermal reactions of Na2[Mo2O4EDTA].5H2O and LnCl3.6H2O produce the chiral layered lanthanide molybdate oxides pillared by the chiral cluster ligand, [Ln(H2O)MoO4]2[lambda-Mo2O4EDTA] (Ln = Gd, 1; Eu, 2; Tb, 3; Y, 4). The tetradentate molybdate bridges Ln3+ to form a square grid structure, which is pillared by the…
Ge S 2 /metals thin film bilayered structures were examined for write-once-type optical recording materials. Decreases in the reflectance of GeS2∕Ag and GeS2∕Cu structures at a certain elevated temperature were observed. The phenomena were attributed to the formation of metal sulfides with high optical absorption coef…
Micro and nano structures of carbonised polymers resulting from the pyrolytic transformation of polymer structures are presented. Polymers have become increasingly popular as materials for micro/nano electromechanical systems (MEMS/NEMS), especially for chemical or biological application. Focus is on the transformatio…
In-plane magnetic anisotropy of a (Ga,Mn)As film has been investigated by measuring anisotropic magnetoresistance as a function of the direction of in-plane magnetic fields. Two Hall bars with channel direction [-110] or [100] were fabricated to detect the in-plane magnetization reversal process from both the longitud…
The effect of γ-irradiation on the structural and the electrical propertiesof rare earth ferrite of the general formula Co0.5Zn0.5CeyFe2-yO4 (0.0≤y≤ 0.2) isdiscussed. X-ray diffraction pattern of irradiated and un- irradiated samplesshowed the formation of cubic spinel structure. The obtained data show that theelectri…
Abstract Ammonium nitrate (AN) is used as an oxidant in a series of systems with a wide spectrum of applications, from explosive compositions up to smokeless stoichiometric self‐burning compositions with low combustion temperature. The knowledge of the thermal stability of such compositions is of great importance in u…
We have designed, synthesized, and evaluated the physical properties of some high birefringence (Deltan) isothiocyanato phenyltolane and quaterphenyl liquid crystals. These compounds exhibit Deltan~0.48-0.52 at room temperature and wavelength lambda=633 nm. Laterally substituted short alkyl chains and fluorine atom el…