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。
Raman analyses of single crystals of ikaite, CaCO 3 ·6H 2 O, synthesized in a diamond-anvil cell at ambient temperature yield spectra from 0.14 to 4.08 GPa; the most intense peaks are at 228 and 1081 cm -1 corresponding to E g (external) and A 1g (internal) modes of vibrations in CO 3 2. ions, respectively. These are…
This paper presents results for focused ion beam (FIB) processing of two photonic devices: 1) a GaN laser with a fourth-order grating for vertical emission, and 2) a two-dimensional (2-D) photonic crystal (PhC) structure. For the GaN laser, both L-I and I-V results are shown before and after etching, and vertical emit…
Epoxy‐based layered silicate nanocomposites of various compositions were synthesized and their physical and water vapor diffusion properties studied. Mixtures of an epoxide monomer, diglycidyl ether of bisphenol A, with nonmodified sodium montmorillonite (NaMMT) or organophilically modified montmorillonites were prepa…
A novel approach toward improvements of oral chemotherapeutic formulations has evolved, which combines solubilisation (molecular dispersion) of the hydrophobic anticancer drugs in micelles attached to large macromolecules or microparticles. The large size of the macromolecules or microgels prevents the gel components…
Powder metallurgy (PM) and spray forming (SF) have been reported as important alternative routes for tool steel production. The ability to promote refined and more uniform microstructures is their main advantages, leading to improved properties and larger isotropy. While PM application is a completely established tech…
Trans-vacant and cis-vacant polymorphs of smectites and illites were distinguished by studying different cation substitutions in octahedral and tetrahedral sheets and in the interlayer. The standard Kohn-Sham self-consistent density functional method was used in the generalized gradient approximation (GGA) with numeri…
Diamond nanorods are one-dimensional carbon nanostructures consisting of all sp3 bonded carbon atoms. They represent an alternative class of carbon structure to fullerene nanotubes for potential applications in nanocomposites for mechanical reinforcement and thermal management, as well as in microelectronics. Syntheti…
Abstract Stable weak polyelectrolyte (PE) microcapsules were fabricated by applying thermal treatment on poly(styrene sulfonate) (PSS) doped CaCO 3 microparticles coated alternatively with poly(allylamine hydrochloride) (PAH) and sodium poly(acrylic acid) (PAA) in a layer‐by‐layer (LBL) assembly manner, followed by co…
Two aluminum Schiff base catalysts with the formula LAlEt [L = bis(benzoylacetone)trimethylenediimine (1) or bis(benzoylacetone)ethylenediimine (2)] were designed and synthesized for a comparison of their catalytic properties in the polymerization of racemic lactides. Single-crystal data of catalyst 1 confirmed its tr…
Abstract This article provides an overview of metastable β titanium alloys either being utilized or being considered for use in orthopedic applications. The effects of thermomechanical processing on the mechanical properties (e.g., elastic modulus, tensile, wear and high cycle fatigue performance) of Ti‐15Mo‐0.2O, Ti‐…
The effect of oxygen (O2) contamination on the inhibition of carbon dioxide (CO2) corrosion was studied using carbon steel rotating cylinder electrodes (RCE). The test conditions were 40°C, 1 bar CO2, pH 5.5, and 1 wt% sodium chloride (NaCl) solution. The uninhibited CO2 corrosion rate was 1.5 mm/y to 2 mm/y under the…
A novel biomimetic catalytic system containing a supramolecular complex between iron(III)-tetrakis(p-sulfonatophenyl)porphyrin [Fe(III)-TPPS] and hydroxypropyl-beta-cyclodextrin (HP-beta-CD) was examined for the potassium monopersulfate catalyzed oxidation of pentachlorophenol (PCP). In the absence of HP-beta-CD, the…
A fast coupled-integral-equation (CIE) technique is developed to compute the plane-TE-wave scattering by a wide class of periodic 2D inhomogeneous structures with curvilinear boundaries, which includes finite-thickness relief and rod gratings made of homogeneous material as special cases. The CIEs in the spectral doma…
Through the incorporation of sterically hindering, bulky terminal groups into the structures of chiral and racemic smectic liquid‐crystalline materials, we sought to interfere with, and decouple, the layers of various mesophases. By varying the size of the terminal group we found that we could control the mesophase st…
We describe a procedure for calculating the core loss in high-speed switched-reluctance machines. The technique calculates core losses within a switched-reluctance machine to a high degree of spatial resolution over a wide range of operating conditions. We confirmed the calculations experimentally, using a loss segreg…
Abstract In this paper “smart” nanocomposites comprising Stöber silica nanoparticles of two different surface polarities and a novel thermoreversible crosslinking rubber carrying self‐complementary hydrogen bonding (HB) moiety were presented. This strategy is based on the idea that the introduction of HB between silic…
Abstract Summary: In this paper, films were prepared from soy protein and corn starch in different proportions and thermal stability and kinetic parameters were determined through degradation reactions in an inert atmosphere. Solid residues and decomposition products were identified by infrared spectroscopy. Films fro…
This study deals with the synthesis and in vitro osteocompatibility evaluation of two novel alanine-containing biodegradable ester polyphosphazenes as candidates to form self-setting composites with hydroxyapatite (HAp) precursors. The two novel biodegradable polyphosphazenes synthesized were poly[(ethyl alanato)1.0(e…
Fabrication of periodic structures with resolution below 100nm is required in many emerging applications such as subwavelength optical components, self-assembly templates, or patterned magnetic media. The achromatic spatial frequency multiplication technique that we have developed uses wideband illumination and self-i…
We simulated the photoisomerization dynamics of an azobenzenophane with a semiclassical surface hopping approach and a semiempirical reparametrized quantum mechanics/molecular mechanics Hamiltonian. Only one of the two azobenzene chromophores in the molecule is taken into account quantum mechanically: the other one is…