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。
Ammonium polyphosphate (APP) produced by non-P2O5 process and traditional P2O5 process were used in the intumescent flame retardant (IFR) polypropylene (PP) composite (IFR-PP). The composite was tested by limited oxygen index (LOI) and UL-94. TGA and SEM were used to study the decomposition processes. Results showed t…
Complexes of hydroxamic derivatives of carboxymethyl- and carboxyethylaubazidan with Fe 3+ , Cu 2+ , Ni 2+ , Co 2+ , Mn 2+ cations were synthesized. The structure and composition of the obtained compounds were studied by the IR and electronic spectroscopy and elemental analysis.
The cells of a capacitive energy store with a semiconductor switch are studied, when the switch consists of reverse-switched dynistors and power diodes. Particular attention is paid to the operation of semiconductor switches with surge currents, when the semiconductor structures are strongly heated. The operating cond…
In this study we present our first results concerning the preparation of CZTS thin films using simple and cost effective wet processes on Ti, ITO coated glass and soda lime glass. Cyclic voltammetry and chronoamperometry were used to investigate the mechanism deposition of the films. Structural and optical properties…
TbMnO3is a multiferroic material with a complex magnetic structure at low temperature, giving rise to spin ordering induced ferroelectricity. We show that this material exhibits a photo-induced transient current below the ferroelectric transition temperature. The result is interpreted in terms of a photo-induced polar…
The temperature dependence of the production rate of radiation-induced point defects is found during the analysis of experimental data on nucleation and growth of dislocation interstitial loops in aluminum irradiated by 1 MeV electrons in the temperature range of 293–423 K. With elevation of the temperature, the produ…
This study represents the fields and the temperature profiles in a single cell of an anode supported planar a SOFC fuel cell under the influence of various polarization resistance sources; The Ohm polarization resistance type is at the anode, electrolyte, cathode and interconnector. The activation polarization resista…
In this paper the optical optimization of vertical ZnO/CdTe and crystalline silicon/amorphous silicon (c-Si/a-Si) core-shell heterojunction nanowires array solar cells is presented. Optical simulations have been performed by means of a Rigorous Coupled-Wave Analysis (RCWA) numerical simulator which allows the modeling…
The correlation of Diamond-Like Carbon (DLC) bonding structure versus film corrosion protective capability against Hydrofluoric (HF) acid exposure was made. Raman analysis of DLC films that were subjected to repeated thermal cycle heating showed that were more clustering in sp2sites upon exposure to high temperature a…
The friction and wear characteristics of PES/metal matrix composite materials were tested by the ball-disc friction pair of UMT-2 friction and wear test machine. The plastic layer is composed of distinct components. The results showed that: the tribological properties of PES/metal matrix composites were improved signi…
This paper discussed on the structural properties of the PMMA/TiO2 nanocomposite films prepared using sonication-solution casting method. The structural properties of the nanocomposite films were compared by mixing the self-prepared TiO2 (~12 nm) and the commercially available TiO2 (25 nm) in the PMMA. The well disper…
Molecular dynamics simulations are used to establish a correlation between the time evolution of spectral features with various structural components of a ligand-stabilized CdTe quantum dot. The localization of charge oscillations due to light absorption is investigated by O. B. Malcıoğlu et al. on page 239 before and…
Zinc oxide (ZnO) films were prepared on Si substrates and then aluminum nitride (AlN) films were deposited on ZnO films by radio frequency (RF) magnetron sputtering. The crystal orientation, crystallite structure and surface morphology of AlN/ZnO films were characterized by X-ray diffraction (XRD), Raman spectrum and…
A nanostructural layer was formed on the surface of 35CrMo steel rods rolled by cross-rolling. The layer microstructure is composed of nano-scale grains and some deformation grains, which contains compressive residual stress of -479Mpa. The surface roughness is decreased from Ra 2.1μm to Ra 0.14μm with improvement of…
The technology of obtaining cast billets of the Cu-Mg (0.1–1.0%) alloys, in which continuous smelting and continuous horizontal casting are implemented in one smelting-casting aggregate, is developed. In this case, the refinement and homogenizing processing of the melt is performed continuously during the entire time…
The growth of nanocrystals obtained from Langmuir-Blodgett films of ferroelectric copolymer consisting of 70% vinylidene fluoride and 30% trifluoroethylene has been investigated by atomic force microscopy (AFM). The radius and concentration of nanocrystals are found to depend on the annealing time of the film. A model…
New short-block polyurea-polydimethylsiloxane block copolymers based on aliphatic and alicyclic secondary diamines and diisocyanates as well as on oligodimethylsiloxanes with glycidyl end groups were synthesized through a two-stage method. With the use of DSC and small-angle X-ray scattering methods, it was shown that…
A binder system containing polyurethane precursors was used to in situ foam (direct foam) an (La0.6Sr0.4)0.98(Co0.2Fe0.8)O3−δ (LSCF) cathode composition on an yttrium-stabilised zirconia (YSZ) electrolyte coated with a porous ∼10 µm thick cathode active layer. The YSZ electrolyte was ∼110 μm thick, and a fuel cell was…
Underwater repair method for insulator of the optical submarine cable has been developed and test samples were successfully repaired in deep-sea field tests.
Rutherford backscattering, IR spectroscopy, ellipsometry, and atomic-force microscopy are used to perform an integrated study of the composition, structure and optical properties of a-Si1 − x C x :H〈Er〉 amorphous films. The technique employed to obtain the a-Si1 − x C x :H〈Er〉 amorphous films includes the high-frequen…