Results 51 to 60 of about 514,001 (163)
Geometry Effects at Atomic-Size Aluminium Contacts [PDF]
Chem. Phys. Lett. 439, 143 (2007), 2007 We present electronic structure calculations for aluminium nanocontacts. Addressing the neck of the contact, we compare characteristic geometries to investigate the effects of the local aluminium coordination on the electronic states. We find that the Al 3pz states are very sensitive against modifications of the orbital overlap, which has serious ...
arxiv +1 more source
Applied Sciences, 2018 In the present paper, the microstructures of three kinds of in-situ reinforcements Al-Ti-C, Al-Ti-B, and Al-Ti-B-C-Ce were deeply investigated using a combination of scanning electron microscopy, X-ray diffraction spectroscopy, and transmission electron ...
Lusha Tian +7 more
doaj +1 more source
Electrochemical extraction of europium from molten fluoride media [PDF]
, 2009 This work concerns the extraction of europium from molten fluoride media. Two electrochemical ways have been examined: (i) the use of a reactive cathode made of copper and (ii) the co-deposition with aluminium on inert electrode, leading to the formation
Cassayre, Laurent +4 more
core +1 more source
Friction Stir Welding Parameters Development of AA6061-T6 Extruded Alloy Using a Bobbin Tool
Engineering Proceedings, 2023 Bobbin tool friction stir welding (BT-FSW), or self-reacting tool friction stir welding (SR-FSW), refers to a solid-state welding process which that uses two opposing rotating shoulders (top and lower of the workpiece) connected with a fully penetrated ...
Kenza Marianne Sipereh Tinguery +3 more
doaj +1 more source
Atomistic Mechanisms for the Nucleation of Aluminium Oxide Nanoparticles [PDF]
J. Phys. Chem. A, 2015, 119, 33, 8944, 2017 A predictive model for nanoparticle nucleation has not yet been successfully achieved. Classical nucleation theory fails because the atomistic nature of the seed has to be considered since geometrical structure as well as stoichiometry do not always match the bulk values.
arxiv +1 more source
Metals, 2022 Al-Ti-B intermediate alloys are widely used as grain refiners in aluminum alloys owing to the presence of Al3Ti and TiB2 phases. However, the existence of Zr in aluminum alloy melts often results in coarse grain size, leading to Al-Ti-B failure called Zr
Jianqiang Wu +7 more
doaj +1 more source
InAs nanowire with epitaxial aluminium as a single-electron transistor with fixed tunnel barriers [PDF]
Phys. Rev. Applied 6, 054017 (2016), 2016 We report on fabrication of single-electron transistors using InAs nanowires with epitaxial aluminium with fixed tunnel barriers made of aluminium oxide. The devices exhibit a hard superconducting gap induced by the proximized aluminium cover shell and they behave as metallic single-electron transistors.
arxiv +1 more source
Applications solution using the system 2000 graphite furnace [PDF]
, 2000 In patients with chronic renal failure, on treatment with haemodialysis, clinical symptoms may develop, which are associated with abnormally high levels of aluminium in the blood and tissues. Such patients are exposed to aluminium via the dialysate fluid,
Gill, Richard
core
The effect of atomic structure on the electrical response of aluminium oxide tunnel junctions [PDF]
Phys. Rev. Research 2, 013110 (2020), 2019 Many nanoelectronic devices rely on thin dielectric barriers through which electrons tunnel. For instance, aluminium oxide barriers are used as Josephson junctions in superconducting electronics. The reproducibility and drift of circuit parameters in these junctions are affected by the uniformity, morphology, and composition of the oxide barriers.
arxiv +1 more source
Effects of flux application and melting parameters in investment casting of pure aluminium by in-situ melting technique [PDF]
, 2018 Investment cast aluminium suffers porosity defect attributed to the complex combination of various factors including melt quality, casting process parameter and pouring technique.
Saleh, Aslinda
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