MgAlON composites have been prepared under nitrogen atmosphere, using Dengfeng calcined alumina w(Al2O3) = 85 % and other raw material, in order to reduce the production cost and make full use of the rich bauxite resources in Henan Province. The effects of the different sintering temperature and different matrix content on the preparation and properties of MgAlON composites were investigated. T...

A method for the formation of a low-temperature hybrid gate dielectric for high-performance, top-gate ZnO nanowire transistors is reported. The hybrid gate dielectric consists of a self-assembled monolayer (SAM) and an aluminum oxide layer. The thin aluminum oxide layer forms naturally and spontaneously when the aluminum gate electrode is deposited by thermal evaporation onto the SAM-covered Zn...

Alumina nanotubes (ANTs) with unique fusiform morphologies were synthesized via a simple electrochemical route; the fluctuation of the electronic current density during the anodization process is considered to be the main reason for the formation of such new alumina nanostructures.

Nanostructured materials have been successfully produced by electrodeposition into Anodic Aluminum Oxide (AAO) templates. Electron microscopy techniques have been used for nanoscale characterization. The structure, dimensions and chemistry of individual nanostructured materials were analyzed using SEM and TEM microscopy

This study simulated the bulk structure and surface energy of Al₂O₃ based on the density of states (DOS) and studied the synthesis and microstructure of one-dimensional Al₂O₃ whiskers. The simulation results indicate that the (001) surface has a higher surface energy than the others. The growth mechanism of Al₂O₃ whiskers follows vapor-solid (VS) growth. For the (001) surface with the higher su...

Commercial aluminum foils were coated by graphene oxide, and its functionalized derivatives the corrosion performance of specimens examined in acidic conditions (lithium perchlorate sulfuric acid). Electrochemical experiments have shown that all oxide-coated provided up to 96% inhibition efficiency with a corresponding lower rate compared bare foil. Our results clearly show graphene-related mat...

Values of release wave speed in shock-compressed polycrystalline alumina and aluminum (2024) have been measured to 400 and 260 kbar, respectively. These values, as well as previous data for aluminum and iron, have been compared with fourth-order finite strain extrapolations of the longitudinal sound speed V o. For alumina in the pressure range 200-300 kbar and for a iron and • iron the observed...

The reaction of Mo(CO)6 on aluminum films grown on a Mo(1 0 0) substrate at 700 K is explored in ultrahigh vacuum using temperatureprogrammed desorption (TPD) and Auger and X-ray photoelectron (XPS) spectroscopies. Reaction with Mo(CO)6 at 700 K results in some oxidation of the outer layer of the aluminum film, and the formation of a molybdenum carbide, which incorporates some oxygen. The carbi...