Results 41 to 50 of about 35,160 (247)

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

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Research on preparation method and physical-mechanical properties of carbon sequestration lightweight soil

Yantu gongcheng xuebao
To reduce carbon emissions and explore carbon dioxide (CO2) utilization technologies in geotechnical engineering, this study proposes a novel method for preparing carbon sequestration lightweight soil (C-LS) based on the magnesium oxide (MgO) carbonation
LIU Songyu1, 2 , ZHANG Xiang1, CAI Guanghua3, YUAN Zhenyang1, AN Jingfeng4, CHEN Guangwei
doaj   +1 more source

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

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

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

Synthesis and characterization of MgO nanoparticle and their surfactant modified carbon paste electrode sensing for paracetamol

Sensors International, 2021
The present work describes the preparation of MgO nanoparticles (MgO/NPs) by co-precipitation method using CTAB/MgO nanoparticles (CTAB/MgO/NPs) and TX-100/MgO nanoparticles (TX-100/MgO/NPs) surfactant.
K.G. Manjunatha, B.E. Kumara Swamy, H.D. Madhuchandra, K.J. Gururaj, K.A. Vishnumurthy   +4 more
doaj   +1 more source

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

Advanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert, Matheus Roberto Bellé, Florian Kerber, Dinesh Kumar Gunasekar, Hans‐Jörn Weddige, Christos G. Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Position of Fe ions in MgO crystalline structure

Nukleonika, 2015
Magnesium oxide (MgO) is one of the most important raw materials in many branches of industry. Magnesium oxide is a popular refractory raw material because of its high refractoriness and high resistance to basic slags and environment.
Szczerba Jacek, Prorok Ryszard, Stoch Paweł, Śnieżek Edyta, Jastrzębska Ilona   +4 more
doaj   +1 more source

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

Advanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk, Farhan Hossain, Felipe A. Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source