Car-Parrinello Simulation of the Reaction of Aluminium with Oxygen [PDF]
arXiv, 2012 We present Car-Parrinello molecular dynamics simulations of the initial reaction steps leading to an inert oxide layer on aluminium. The mechanism of the reaction of the aluminium surface with single oxygen molecules is analysed. After adsorption at the surface the oxygen molecules dissociate at a femtosecond timescale and the atoms are chemisorbed at ...
arxiv
Aluminium Production Process: Challenges and Opportunities
Metals, 2017 Aluminium, with more than 50 Mt annual production in 2016, is an essential material in modern engineering designs of lightweight structures.[...]
Houshang Alamdari
doaj +1 more source
An Ab Initio Study of Aluminium self-compensation in Bulk Silicon [PDF]
arXiv, 2019 We have used density functional theory to study the energetics and electronic structure of aluminium dopants in crystalline silicon. We present data regarding the atomic and electronic structure and properties of pairs of substitutional aluminium dopants.
arxiv
Study on the impact wear mechanism and damage modes of compacted graphite cast iron
Journal of Materials Research and Technology, 2022 The impact wear mechanism of compacted graphite cast iron (CGI) at different temperatures (room temperature, 300 °C, 400 °C, and 500 °C) and impact frequencies (10 Hz, 12 Hz, and 14 Hz) was analyzed.
Yue Wu +5 more
doaj
Effect of aluminium sheet surface conditions on feasibility and quality of resistance spot welding [PDF]
, 2010 A study investigating the effect of sheet surface condition on resistance spot welding (RSW) of aluminium has been carried out. This concentrates on two automotive aluminium alloys; AA5754 and AA6111, used for structural and closure applications ...
Briskham +14 more
core +1 more source
Chemical Bonding and Charge Distribution at Metallic Nanocontacts
, 2006 We present results of electronic structure calculations for aluminium contacts of atomic size, based on density functional theory and the local density approximation.
Agraït +12 more
core +2 more sources
Co-reduction of aluminium and lanthanide ions in molten fluorides : application to cerium and samarium extraction from nuclear waste [PDF]
, 2009 This work concerns the method of co-reduction process with aluminium ions in LiF–CaF2 medium (79–21 mol.%) on tungsten electrode for cerium and samarium extraction.
Chamelot, Pierre +3 more
core +1 more source
Impact of the Solidification Rate on the Chemical Composition of Frozen Cryolite Bath
Metals, 2017 Solidification of cryolite (Na3AlF6)-based bath takes place at different rates along the sideledge, and around alumina rafts and new anodes. The solidification rate has a significant impact on the structure and the chemical composition that determine the
Sándor Poncsák +3 more
doaj +1 more source
Contributions of Al and Ni segregation to the interfacial cohesion of Cu-rich precipitates in ferritic steels [PDF]
arXiv, 2011 We characterise the influence of the segregation behaviours of two typical alloying elements, aluminium and nickel, on the interfacial cohesive properties of copper-rich precipitates in ferritic steels, with a view towards understanding steel embrittlement. The first-principles method is used to compute the energetic and bonding properties of aluminium
arxiv
Electroplastic cutting influence on power consumption during drilling process [PDF]
, 2016 The aim of this study is to report the use of non-conventional material removal process technique. It was found that electropulses (EPs) assisted drilling process improves the material machinability based on the eletroplastic influence.
González Rojas, Hernan Alberto +3 more
core +2 more sources