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 the present study, Ta / La 2 O 3 films ( La 2 O 3 doped with Ta 2 O 5) as a gate dielectric were prepared using a sol–gel method at low pressure. Ta / La 2 O 3 film has some hopeful properties as a gate dielectric of logic device. The structure and morphology of Ta / La 2 O 3 films were studied using X-ray diffract…
Abstract Hydroxyapatite/polyamide-66 (HA/PA66) composite scaffolds were prepared using injection-molding technique, and also analyzed by means of scanning electron microscopy (SEM), dynamic mechanical analysis (DMA), Fourier transform infrared spectroscopy (FTIR) and mechanical testing. Compared with common methods in…
GaAs nanowires were grown on (111)B GaAs substrates using the vapour-liquid-solid mechanism. The Au/Pt nanodots used to catalyse wire growth were defined lithographically and had varying diameter and separation. An in-depth statistical analysis of the resulting nanowires, which had a cone-like shape, was carried out.…
Fragment molecular orbital calculations were successfully applied to a nylon oligomer hydrolase, NylB, to investigate the hydration effects on an enzyme–substrate binding structure. Statistically corrected inter-fragment interaction energy analyses were performed on this system to quantitatively characterise the inter…
ABSTRACT In this paper a new bolt attachment method was explored, where the attaching bolts were divided into two sets. The first set of bolts was tightened and was used to connect the underbody plate to the hull under ordinary operations. The second set of bolts connecting the plate and the hull were not tightened an…
We report recent progresses in the characterization of the vertical electrical and thermal properties of multilayered silicon germanium (SiGe) materials for thermoelectric coolers and generators. Superlattice structures p- and n-type doped with different barriers and quantum well thicknesses were grown by Low Energy P…
We have studied dynamics in the liquid and amorphous Fe by means of molecular dynamics (MD) simulation. A series of MD models containing 104 particles under periodic boundary conditions are prepared at temperatures from 290 K to 2250 K. It was shown that the second peak of the radial distribution function (RDF) appear…
The paper presents results of numerical calculations of a high-resolving electrostatic energy analyzer, based on a bounded cylindrical field, for investigations of flows of charged particles in space. The analyzer possesses with ability of fine tuning of focusing characteristics, using an additional tuning potential,…
Si quantum dots (Si-QDs) with doped Ge core were self-assembled on thermally grown SiO2 from alternate thermal decomposition of pure SiH4 and GeH4 diluted with He. When the sample was excited by a 979 nm line of semiconductor laser, photoluminescence (PL) spectra peaked at ~0.70 eV were observed, even at room temperat…
We applied surface-enhanced Raman spectroscopy (SERS) to the excitation of transversal optical (TO) phonos in strained SiGe. The SERS technique can greatly enhance the Raman signal owing to metal-surface plasmon resonance. Furthermore, the electrical field includes a large amount of z-polarization, which can excite TO…
Mössbauer measurements have been carried out in powdered single crystalline samples of BaFe(2-x)RuxAs(2), for Ru concentration in the x = 0.0-0.5 range. The internal hyperfine field (B(hf)) measured at 5 K is found to decrease with an increase in Ru concentration, consistent with the disappearance of a magnetic ground…
To meet various physical property requirements of materials for advanced application, for specific devices, combinations of Si/Ge, Ge/Si, Si1-xGex/Si, are frequently introduced in the device fabrication process. Epitaxy, condensation and annealing processes are commonly used. Since a small variation in composition, st…
Herein, a series of novel hydrogen-bonded complexes derived from 4-[[(dodecyloxy)benz-4-yl]azo]benzoic acid (DBA) and melamine are reported. The morphology and surface wettability of the resulting self-assembled supramolecular architectures can be easily modulated not only by varying the molar ratios of DBA and melami…
Abstract Considering the growing interest in the development of new materials based on renewable materials, this paper presents the results of experiments carried out with high content (80 to 95 %) of coconut endocarp particles in phenol formaldehyde resin for the development of composite material by compression moldi…
Abstract Non-halogen flame retarded polyethylene (PE) can be prepared by filling metallic hydroxides magnesium hydroxide (MH) or aluminium hydroxide (ATH), the mechanical properties of polymer composites will decline greatly when filling much more inorganic particles. Selecting microencapsulating particles, suitable s…
Sensing of heavy metals in aqueous solutions has been performed by developing porous silicon (PSi) hybrid materials. The Rhodamine organosilane derivative (Rh-UTES) was used as metal receptor through formation of luminescence chelates within the porous silicon microcavities (PSiMc). The attachment of organic derivativ…
Carbon nanotubes (CNT) have been known as one of the most important nanomaterials and their toxicological effects in vivo have been widely concerned. According to "Globally Harmonized System of classification and Labelling of Chemicals" (GHS) classification regulation, here, we analyzed the local toxicity (skin corros…
The concept of a monolithic Ti-Ni spinal rod with variable flexural stiffness is proposed to reduce the risks associated with spinal fusion. The variable stiffness is conferred to the rod using the Joule-heating local annealing technique. The annealing temperature and the mechanical properties' distributions resulted…
Singularity, representing a structurally stable topological defect (TD), plays a pivotal role in various physical systems. Here we theoretically present the fingerprints of TDs and uncover the resulting exotic optical properties in a tailored metasurface system. The presence of the TDs results in coherent perfect abso…
Abstract The polyoxotungstate (C4H10ON)9H3[Mn2Na2(C4H10ON)2(GeW9O34)2]·9H2O (1) was synthesized in aqueous solution and characterized by single‐crystal and powder X‐ray diffraction, IR spectroscopy, TGA, and variable temperature susceptibility measurements. The polyoxoanion framework of 1 is built on the lacunary Kegg…