Results 41 to 50 of about 5,849 (219)
, 2012 We investigated the spin-dependent transport properties of Fe/MgAl2O4/Fe(001) magnetic tunneling junctions (MTJs) on the basis of first-principles calculations of the electronic structures and the ballistic conductance.
Kazutaka Abe +4 more
core +1 more source
Effect of intensive melt shearing on the formation of Fe-containing intermetallics in LM24 Al-alloy [PDF]
, 2012 Fe is one of the inevitable and detrimental impurities in aluminium alloys that degrade the mechanical performance of castings. In the present work, intensive melt shearing has been demonstrated to modify the morphology of Fe-containing intermetallic ...
Backerud L +20 more
core +1 more source
Interface and electronic characterization of thin epitaxial Co3O4 films
, 2008 The interface and electronic structure of thin (~20-74 nm) Co3O4(110) epitaxial films grown by oxygen-assisted molecular beam epitaxy on MgAl2O4(110) single crystal substrates have been investigated by means of real and reciprocal space techniques.
Albers +63 more
core +1 more source
The effect of Mg location on Co-Mg-Ru/γ-Al2O3 Fischer–Tropsch catalysts [PDF]
, 2015 © 2016 The Author(s) Published by the Royal Society. All rights reserved.The effectiveness of Mg as a promoter of Co-Ru/γ-Al2O3 Fischer-Tropsch catalysts depends on how and when the Mg is added.
Boldrin, P +8 more
core +1 more source
Advanced Engineering Materials, EarlyView.This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm +6 more
wiley +1 more source
Structural relaxation around substitutional Cr3+ in MgAl2O4 [PDF]
, 2007 The structural environment of substitutional Cr3+ ion in MgAl2O4 spinel has been investigated by Cr K-edge Extended X-ray Absorption Fine Structure (EXAFS) and X-ray Absorption Near Edge Structure (XANES) spectroscopies.
Cabaret, Delphine +4 more
core +6 more sources
Advanced Engineering Materials, EarlyView.A carbon‐free, as‐sintered MgO–steel cermet anode, fabricated via cold isostatic pressing using MgO–C refractory recyclate, was evaluated under laboratory‐scale K‐cryolite electrolysis at 800°C. Operation at this reduced temperature, combined with the electrolyte's limited electrical conductivity, led to an increase in cell voltage.
Farhan Hossain +7 more
wiley +1 more source
Effect of 1 wt% LiF additive on the densification of nanocrystalline Y2O3 ceramics by spark plasma sintering [PDF]
, 2011 Densification of nanocrystalline cubic yttria (nc-Y2O3) powder, with 18 nm crystal size and 1 wt% LiF as a sintering additive was investigated. Specimens were fabricated by spark plasma sintering at 100 MPa, within the temperature range of 700–1500 °C ...
Chaim, Rachman +3 more
core +2 more sources
Қарағанды университетінің хабаршысы. Физика сериясыPorous ceramics of MgAl2O4 (MAS) and MgAlGaO4 (MAGS) doped with europium were synthesized by ra- diation method. Radiation synthesis was performed with high efficiency within less than 1 s using radiation energy and mixture materials with no additives ...
E.F. Polisadova, N.D. Tran
doaj +1 more source
THE EFFECT OF Mg-Al Wt% FOR PHASE FORMATION OF SPINEL MgAl2O4 PRODUCED BY METAL DISSOLVED METHOD
Jurnal Neutrino: Jurnal Fisika dan Aplikasinya, 2020 Synthesis of magnesium aluminate spinel powder (MgAl2O4, abbreviated as MA) were prepared by the liquid mixing method. The synthesis of MA involved Mg powders with various weight compositions (4.8; 10; 20; 30; 40; and 60%) and Al powders (95.2; 90; 80 ...
Chairatul Umamah +2 more
doaj +1 more source