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 ...

Tetraiodine nonoxide (I4O9) has been synthesized using a dry approach that combines elemental oxygen and iodine without the introduction of hydrated species. The synthesis approach inhibits the topochemical effect promoting rapid hydration when exposed to the relative humidity of ambient air. This stable, amorphous, nano-particle material was analyzed using differential scanning calorimetry (DS...

Aluminium powders are used in a wide range from propelling rockets to improving personal hygiene. More popular industrial applications include manufacture of silver metallic pigments, paints, inks, plastics, packaging, textiles and aerospace industry. As thick film pastes used in the manufacture of silicon solar cells, and as reducing agent and sources of heat, used in alumina thermic and exoth...

CuSbS2 nanotubes (NTs) were prepared via a hot-injection method using an anodic aluminum oxide (AAO) template, and mixture of oleylamine (OLA) dichlorobenzene (DB) as solvent. Structural characterization the powder indicated formation high purity well-aligned NTs with average diameter 200 nm wall thickness 40 nm. Optical electrochemical characterizations that obtained exhibit p-type conductivit...

The alpha and gamma phases of aluminum oxide were fingerprinted using electron energy-loss spectroscopy (EELS) with an energy resolution of 0.4 eV. Electron diffraction and powder x-ray diffraction were used to determine the phase of micron and nanopowder alumina samples. The results from indexing peak and ring diffraction patterns proved to be ambiguous and were resolved by comparing EELS spec...

Copper, zinc, and cerium oxide adsorbents supported on alumina were used to remove silane gas (SiH4). The adsorbents were prepared using a coprecipitation method and characterized by the inductively coupled plasma mass spectrometry, X-ray powder diffractometer, and Brunauer-Emmett-Teller method (BET). The silane removal efficiency and adsorption capacity of the adsorbents were investigated in t...

Abstract: The supersolidus liquid phase sintering characteristics of commercial 2024 pre-alloyed powder was studied at different sintering conditions. Pre-alloyed 2024 aluminum alloy powder was produced via air atomizing process with particle size of less than 100 µm. The solidus and liquidus temperatures of the produced alloy were determined using differential thermal analysis (DTA). The sinte...

Solid-state recycling, which involves the direct recycling of scrap metal into bulk material using severe plastic deformation, has emerged as a potential alternative to the conventional remelting and recycling techniques. Hot press forging has been identified as a sustainable direct recycling technique that has fewer steps and maintains excellent material performance. An experimental investigat...