Results 81 to 90 of about 357,740 (345)

Heat of Formation of O2– [PDF]

, 1969
A series of Born–Mayer-type calculations are used to calculate the lattice energies of simple oxides (MgO, BeO, CaO, and ZnO). Repulsion and other non-Coulombic contributions to the lattice energy are obtained using thermodynamic and recent ultrasonic ...
Ahrens, Thomas J., Gaffney, Edward S.
core   +1 more source

Tunable magnetic anisotropy of antiferromagnetic NiO in (Fe)/NiO/MgO/Cr/MgO(001) epitaxial multilayers

Scientific Reports, 2023
We report on the magnetic properties of antiferromagnetic NiO(001) thin films in epitaxially grown NiO/MgO(d MgO )/Cr/MgO(001) system for different thicknesses of MgO, d MgO . Results of X-ray Magnetic Linear Dichroism show that together with an increase
W. Janus, T. Ślęzak, M. Ślęzak, M. Szpytma, P. Dróżdż, H. Nayyef, A. Mandziak, D. Wilgocka-Ślęzak, M. Zając, M. Jugovac, T. O. Menteş, A. Locatelli, A. Kozioł-Rachwał   +12 more
doaj   +1 more source

Full-potential KKR calculations for MgO and divalent impurities in MgO [PDF]

Physical Review B, 2002
We present a detailed investigation of bulk properties of MgO and lattice relaxations around divalent impurities in MgO by means of the full-potential Korringa-Kohn-Rostoker Green's function method. The local-density approximation and the perturbative generalized gradient corrections are used to calculate the lattice constant and bulk modulus of MgO ...
Baranov, A. N., Stepanyuk, V. S., Hergert, W., Katsnelson, A. A., Settels, A., Zeller, R., Dederichs, P. H.   +6 more
openaire   +2 more sources

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

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, Jana Hubálková, Christian Schimpf, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +6 more
wiley   +1 more source

Control of defect-mediated tunneling barrier heights in ultrathin MgO films

, 2010
The impact of oxygen vacancies on local tunneling properties across rf-sputtered MgO thin films was investigated by optical absorption spectroscopy and conducting atomic force microscopy.
C. Kieber, Cox P. A., D. J. Kim, E. Beaurepaire, F. Schleicher, G. Schmerber, J. Arabski, M. Bowen, R. H. Shin, S. Boukari, V. Davesne, W. Jo, W. S. Choi   +12 more
core   +1 more source

An investigation of the comparative reactivities of ethane and ethylene in the presence of oxygen over Li/MgO and Ca/Sm2O3 catalysts in relation to the oxidative coupling of methane [PDF]

, 1989
In order to examine the importance of the further oxidation of the desired C2 products in the oxidative coupling of methane, ethylene and ethane have been added to the feed (containing methane and oxygen) to a Li/MgO or Ca/Sm2O3 catalyst.
Korf, S.J., Ommen, J.G. van, Roos, J.A., Ross, J.R.H., Veehof, R.H.J.   +4 more
core   +2 more sources

Thermophysical Properties of the Desulphurization Slags With Various CaS and CaO/Al2O3 Ratio

Advanced Engineering Materials, EarlyView.
This article investigates how CaS content and the CaO/Al2O3 ratio influence the thermophysical properties of desulphurization slags. Using experimental measurements and thermodynamic simulations, this study reveals complex effects on viscosity, surface tension, and density, providing new insight into slag structure and phase behavior under ...
Eldar Salpagarov, Matheus Roberto Bellé, Anton Yehorov, Julia Richter, Olena Volkova   +4 more
wiley   +1 more source

Atomic and Electronic Structures of Unreconstructed Polar MgO(111) Thin Film on Ag(111)

, 2003
Atomic and electronic structures of a polar surface of MgO formed on Ag(111) was investigated by using reflection high energy electron diffraction (RHEED), Auger electron spectroscopy, electron energy loss spectroscopy (EELS), and ultraviolet ...
A. Barbier, Atsushi Koma, C.A. Ventrice, D. Wolf, K. Koike, K. Nishita, K. Saiki, K. Saiki, K. Ueno, Koichiro Saiki, M. Kiguchi, M. Kiguchi, M. Tsukada, M.A. Langell, Manabu Kiguchi, P.A. Cox, S.A. Flodstrom, Shiro Entani, Takayuki Goto, V.E. Henrich, W. Ranke   +20 more
core   +1 more source

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

Advanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi, Alexander Adamczyk, Nora Brachhold, Gert Schmidt, Jana Hubálková, R. Gumeniuk, Alexandros Charitos, Christos G. Aneziris   +7 more
wiley   +1 more source

Gundlach oscillations and Coulomb blockade of Co nano-islands on MgO/Mo(100) investigated by scanning tunneling spectroscopy at 300 K

, 2010
Ultrathin MgO films on Mo(100) with a thickness up to 12 ML are studied by scanning tunneling microscopy and spectroscopy at room temperature. The spatial variation of the work function within the MgO film is mapped by field emission resonance states ...
Grob, M., Morgenstern, M., Pauly, C., Pezzotta, M., Pratzer, M.   +4 more
core   +1 more source