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。
Abstract We demonstrate templateless synthesis of nanoporous gold (Au) sponge by chemical reduction of Au species in aqueous solution. The obtained Au nanosponges exhibit surface-enhanced Raman scattering activity.
Purpose The purpose of this paper is to investigate stress corrosion cracking (SCC) for 304, 316, and 321 stainless steels in petroleum‐processing environments. Design/methodology/approach Sensitized austenitic stainless steels were subjected to a microstructure investigation and electrochemical test. Stressed sensiti…
Abstract Purpose – The purpose of this paper is to develop a novel organic‐inorganic (epoxy‐silicone) hybrid resin for application in heat resistant surface coatings. Design/methodology/approach – Thermally stable aminosilicone resin was prepared by using diethoxydimethyl silane and γ‐aminopropyldiethoxy methyl silane…
The high reset current, IR, in unipolar resistance switching is an important issue which should be resolved for practical applications in nonvolatile memories. We showed that,during the forming and set processes, the compliance current, Icomp, can work as a crucial parameter to reduce IR. Doping with Co or Mn can sign…
I have successfully prepared (110) trilayers of \LSMO-\YBCO-\LSMO. Magnetization measurements on these samples reveal a stronger coupling between the ferromagnetic layers. The coupling is an order of magnitude higher than that seen in the case of (001) trilayers. Magnetoresistance measurements show a first order trans…
Abstract Barium tetrametaphosphate hydrate Ba 2 (P 4 O 12 )∙3.5H 2 O was synthesized as a single‐phase crystalline powder starting from an aqueous solution of barium hydroxide and phosphorus pentoxide at 300 K. Ba 2 (P 4 O 12 )∙3.5H 2 O crystallizes in a new structure type in which…
Abstract Several novel aluminum alkoxydisilanolate complexes were prepared by reaction of triphenylsilanol with aluminum 2‐methoxyethoxide, aluminum 2‐ethoxyethoxide, aluminum sec ‐butoxide and aluminum iso ‐propoxide. All new complexes, [(Ph 3 SiO) 2 Al(OR)] 2 [where R = CH 2 CH 2 OCH 3 (1), CH 2 CH 2 OC 2 H 5 (2), C…
Coaxial electrospinning was developed for simultaneously electrospinning two different polymer solutions into core/shell nanofibers, or encapsulated bioactive molecular and drugs into polymer nanofibers for controlled release.In this study, heparin encapsulated poly(L-lactic acid-co-ε-caprolactone) [P(LLA-CL)] core/sh…
Through the polycondensation of a four-functional amine with pyromellitic dianhydride, a hyperbranched polyimide (HPI) was synthesised in this study. The HPI was used for liquid crystal alignment layers. Wide angle X-ray diffraction measurement showed that the HPI film was amorphous. The morphology of the surface laye…
Space Launch Vehicles are subjected to rigor dynamic environment during lift-off and ascent phase of launch. The intense sound generated by the rocket propulsion system exerts significant acoustic pressure which induces vibrations. In addition, intense vibrations are generated by space propulsion engine ignitions, shu…
One of the most frequent causes of failure of overhead high- and medium-voltage transmission and distribution lines is contamination of the insulators with diverse substances such as saline and industrial substances. The contamination mechanically degrades the insulators and affects the electrical characteristics of t…
The experimental neutron and x-ray diffraction data for stoichiometric and S-deficient Ge(x)As(x)S(100-2x) glasses with x = 18.2, 25.0, and 33.3 at.% have been modeled simultaneously using the reverse Monte Carlo (RMC) technique. Nearest-neighbor coordination environments, as obtained in previous x-ray absorption spec…
We report on the electrical resistivity, thermoelectric power, and electronic phase diagram of rhodium-doped NdFeAsO. Rhodium doping suppresses the structural phase transition and spin-density wave observed in the undoped material, and superconductivity emerges at $x$ close to 0.05, despite the distortion of ${\text{F…
A novel nonaqueous route was applied for the synthesis of rare earth phenylphosphonate hybrid nanostructures by reacting rare earth chlorides with phenylphosphonic acid in benzyl alcohol. Powder X-ray diffraction and transmission electron microscopy studies reveal the ordered lamellar structure, with an interlayer dis…
CePO(4):Tb/LaPO(4) nanowires with a core/sheath architecture have been successful synthesized by a facile aqueous chemical method mediated by original CePO(4):Tb aggregation seeds. The seed crystals serve as both a luminescence center and a nucleation site for epitaxial growth. The seed nanocrystals have an irregular…
We report the construction of a molecular recognition layer composed of polyelectrolyte brushes and metal complexes on the surface of a quartz crystal microbalance (QCM) and the sensing abilities for various volatile organic compounds (VOCs). Atom-transfer radical polymerization of 2-(dimethylamino)ethyl acrylate from…
A graphical representation for two-dimensional periodic structures is introduced that provides the full information contained in the dispersion equation: not only for the pass band but for the neighboring stop bands as well. It is a seamless natural extension of Brillouin diagrams obtained by adding eight new zones wh…
The facile synthesis of a novel electron-precise paramagnetic hexamanganese carbonyl selenide cluster [Se(6)Mn(6)(CO)(18)](4-) (1) was discovered, which demonstrates contrasting reactivity toward O(2) and Se(8) under markedly mild conditions to afford the O- and Se-inserted clusters [Se(6)Mn(6)(CO)(18)(O)](4-) (2) and…
Smart catalysts for new materials: A syndiospecific yttrium catalyst that operates by a chain-end-control mechanism enabled the highly alternating ring-opening polymerization of a mixture of two different enantiomerically pure 4-substituted β-propiolactones of opposite absolute configuration (see scheme). This strateg…
p-type Sb-doped ZnO (ZnO:Sb)/n-type Ga-doped ZnO (ZnO:Ga) junctions were grown on c -plane sapphire substrates using plasma-assisted molecular-beam epitaxy. Mesa geometry light emitting diodes (LEDs) were fabricated using standard photolithography and lift-off process, with ohmic contacts achieved using Au/Ni and Au/T…