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。
This paper presents tunable liquid crystal filter consists of three interference filters (LC – cells) with different cell thicknesses. These filters use nematic liquid crystal (with high birefringence). Such design allows to select precisely (using the electric field) the wavelength of outgoing light.
Abstract Ring‐opening polymerization of 1‐methyltrimethylene carbonate (MTMC) initiated by highly active single‐component rare earth tris(2,6‐di‐tert‐butyl‐4‐methylphenolate)s [Ln(OAr)3, Ln = La, Dy, Y] or yttrium isopropoxide [Y(OiPr)3] is reported for the first time. PolyMTMC (Mw = 8.4 × 104, molecular weight distri…
Two-photon photoemission (2PPE) spectroscopy is used to map the momentum-dependent energy distribution of unoccupied bands in the layered $1T{\text{-TiSe}}_{2}$ transition-metal dichalcogenide compound. A comparison of the experimental results with previous calculations based on the local-density functional approach e…
Abstract Zirconium is a commonly used material for containment of corrosive media by the chemical process industry (CPI). Zirconium’s corrosion resistance is exceptional in a broad range of aggressively corrosive environments. However, zirconium is significantly more expensive than most of the alternative, but often i…
The objective of this research was to investigate the utilization of olive mill sludge (OMS) as an alternative to wood in the manufacture of the medium density fiberboard (MDF). The MDF panels were manufactured using standardized procedures that simulated industrial production at the laboratory. Six panel types were m…
Abstract The side‐chain polyhedral oligomeric silsesquioxane (POSS)‐type epoxy (IPEP) hybrid material was synthesized, and the particle sizes of the POSS segment were less than 5 nm and which particles dispersed uniformly. The 3D AFM microphotograph of the IPEP/DGEBA (diglycidyl ether of bisphenol A) hybrid material e…
We show that anodization of Ti sheets in an ethylene glycol and HF containing electrolyte at temperatures under 0 °C results in the formation of a self-arranged ordered porous structure at the top surface of the sample. This perforated surface structure initiates the growth of an ordered array of titania nanotubes. Th…
Abstract This work investigates the influence of some ammonium quaternary compounds as coupling agent in polyethylene/clay nanocomposites to improve the performance of polyethylene used as packaging barrier material. The 3 wt % of vermiculite used as a nanofiller was added to linear low‐density polyethylene (LLDPE) an…
Lu 2− x Ho x O 3 ( x =0.015–0.211) nanocrystals were synthesized by the modified Pechini method, and their nanoceramics were produced by the high‐pressure low‐temperature technique. Structural, morphological studies, and distribution particle size of nanocrystals and sintered pellets were carried out using X‐ray powde…
Abstract This article describes a versatile two‐step method for gold/polyaniline derivative core/shell nanocomposites with the aid of nonionic surfactant F127. First, F127 and monomer were introduced to gold colloids followed by the addition of oxidant to initiate the polymerization of monomer to afford a conducting p…
It has been observed that the polymeric nanoparticles, copolymer of polybenzene and anthracene (PBA NPs), can induce a homeotropic (HMT) alignment in various ferroelectric liquid crystal (FLC) mixtures. The HMT alignment of various FLCs is attributable to the fact that the anthracene molecules favor an upright orienta…
We have modeled, fabricated, and characterized superhydrophobic surfaces with a morphology formed of periodic microstructures which are cavities. This surface morphology is the inverse of that generally reported in the literature when the surface is formed of pillars or protrusions, and has the advantage that when imm…
Nanoencapsulation technology has a diverse range of applications, including drug-delivery systems (DDS) and cosmetic and chemical carriers, because it can deliver various bio- and organic-molecules and improve their stabilities. Conjugated linoleic acid (CLA) has health benefits, including being an anticancer agent, b…
We report on the conformal synthesis of ultrathin films from the amino acid histidine on flat silicon substrates and 3D periodic polymer structures via plasma enhanced chemical vapor deposition. We demonstrate the efficient utilization of this functional amino acid nanocoating for the formation of individual titania n…
Abstract Random copolymers of styrene, p‐azidomethylstyrene and 1H,1H,2H,2H‐perfluorodecyl methacrylate were prepared in two steps involving nitroxide‐mediated radical copolymerization and azidation reaction and further characterized by 1H and 19F NMR, size exclusion chromatography, differential scanning calorimetry,…
The adsorption properties of transition-metal (TM) dimers on defect-free MgO(001) surfaces were studied from a series of ab-initio electronic structure calculations for late TM atoms of Cu, Ag, Au, Ni, Pd, and Pt. Two dimer configurations were considered: an upright dimer structure and a flat lying dimer structure. Fo…
Results of x-ray absorption studies of the structure of amorphous InSb are reported. We demonstrate that approximately 1% bond elongation in the amorphous phase (as compared to the crystalline phase) is accompanied by a counterintuitive increase (approximately 5%) in density. We argue that this controversy is due to t…
Amorphous gallium indium zinc oxide (a-GIZO) thin films of different compositions (Ga2O3:In2O3:ZnO=1:1:1,2:2:1,3:2:1,4:2:1) on Si substrates were investigated by high-resolution x-ray photoelectron spectroscopy and x-ray absorption spectroscopy (XAS) using synchrotron radiation. The O 1s, Ga 3d, In 4d, Zn 3d core, and…
A mesoscale reaction (MSR) model is proposed as part of a multiscale numerical modeling approach to study reactive powder metal mixtures. A discrete particle simulation (DPS) incorporates details of phase morphology and arrangement which are an integral part of designing this class of materials. The DPS provides the s…
Introducing sp3 bonds in carbon nanotubes can significantly modify their electronic properties but need high pressure at room temperature. Here we show by molecular dynamics simulations that sp2 to sp3 bond transition can be realized through bending manipulation at the buckling location, resembling that of nanoindente…