Machining operations of cast parts usually generate considerable amounts of waste in the form of chips (usually 3–5% of the casting weight). Traditionally, swarf is sold to scrapers and remelters, but this option is quite expensive because the selling price is roughly 30% of the acquisition price of the commercial 2nd melt raw material. For most aluminium foundries that incorporate machining op...

Abstract In this research, the metallic phase Aluminium (Al) and ceramic Oxide (Al 2 O 3 ) were combined in different proportions for preparation of five-layered Al-Al functionally graded material. Delamination or crack is common problem at metal-ceramic interface because large difference material properties. Therefore, main objective research was to investigate defects within layer during proc...

Al/AlOx/Al Josephson junctions are the building blocks of a wide range of superconducting quantum devices that are key elements for quantum computers, extremely sensitive magnetometers and radiation detectors. The properties of the junctions and the superconducting quantum devices are determined by the atomic structure of the tunnel barrier. The nanoscale dimension and disordered nature of the ...

Nano-sized γ-Al2O3 was synthesized successfully by a simple method using Al2(SO4)3·18H2O as aluminium source and in the presence of polyethylene glycol (PEG 2000). FTIR spectroscopy, X-ray diffraction (XRD), scanning electron microscope (SEM) and transmission electron microscope (TEM) were used to characterize the structure and morphology of synthesized powder. The results showed that PEG playe...

[1] The courtroom is the crucible of the law, where the fire of litigation tests the intellectual and political forces that inform social policy. Discovery the process by which litigants identify and assemble their evidence provides the fuel for the fire. Indeed, not long ago most of the evidence that the discovery process produced was, quite literally, flammable: boxes upon boxes of paper docu...