OBJECTIVE The purpose of this study was to evaluate the effects of three different surface conditioning methods on the shear bond strength (SBS) of metal brackets bonded directly to gold alloy with chemically cured resin. METHODS Two hundred ten type III gold alloy specimens were randomly divided into six groups according to the combination of three different surface conditioning methods (alu...

The use of aluminum oxide as the gate insulator for low temperature (600 C) polycrystalline SiGe thin-film transistors (TFT’s) has been studied. The aluminum oxide was sputtered from a pure aluminum target using a reactive N2O plasma. The composition of the deposited aluminum oxide was found to be almost stoichiometric (i.e., Al2O3), with a very small fraction of nitrogen incorporation. Even wi...

Introduction: Although aluminum oxide nanoparticles (Al2O3-NPs) are the most widely used nanomaterials, limited studies have been reported on their toxicology. Therefore, the present study aimed to investigate the potential toxicity of aluminum oxide (alumina) nanoparticles and the protective role of aqueous extract of wormwood plant on nanomaterial-induced disorders in the lung of rats. Mater...

as an alternative to chromate conversion coatings, rare-earth coatings especially cerium, because of the low toxicity, have attracted considerable attention. using dip immersion method, cerium-based conversion coating was deposited on aluminum 2024. corrosion resistance was studied in 3.5 wt.% nacl solution using potentiodynamic polarization, electrochemical impedance spectroscopy, and surface ...

A sensitive and accurate method/ test to predict the lifetime of aluminum oxide used as a tunnel barrier in magnetic random access memory (MRAM) has been devised. The performance of magnetic tunnel junction is dependent upon the lifetime of aluminum oxide. Aluminum oxide has also been used in high dielectric constant gate dielectric MOS devices suitable for high speed applications. This method ...