Results 21 to 30 of about 42,210 (307)
Novel Nanosized Spinel MnCoFeO4 for Low-Temperature Hydrocarbon Oxidation
Nanomaterials, 2022 The present paper reports on MnCoFeO4 spinels with peculiar composition and their catalytic behavior in the reactions of complete oxidation of hydrocarbons. The samples were synthesized by solution combustion method with sucrose and citric acid as fuels.
Vencislav Tumbalev +6 more
doaj +1 more source
Natural evidence for garnet-spinel transition (GST) in the Earth's mantle
, 2008 This study based on compiled world-wide garnet peridotite data confirms the GST in high P and T conditions, which was obtained from Al-free experimental system (MgO-Cr~2~O~3~-SiO~2~) by Klemme (2004). A new spinel-phase peridotite zone, garnet peridotite
BenXun Su
core +1 more source
Densification during hot-pressing of carbon nanotube–metal–magnesium aluminate spinel nanocomposites [PDF]
, 2007 The densification by hot-pressing of ceramic–matrix composites containing a dispersion of carbon nanotubes (CNT), mostly single-walled, is studied for the first time.
Lefèvre-Schlick, Florent +4 more
core +1 more source
Cordierite-spinel-quartz assemblages: A potential geobarometer [PDF]
Bulletin of the Geological Society of Finland, 1986 The composition of (Mg-Zn-Fe+2)-aluminate-spinel coexisting with cordierite and quartz is potentially a sensitive geobarometer in rock types such as cordierite ‒ anthophyllite rocks which are not well suited to most other geobarometers.
F. Seifert, J.C. Schumacher
doaj +1 more source
Predicting spinel solid solutions using a random atom substitution method
, 2022 Exploration of chemical composition and structural configuration space is the central problem in crystal structure prediction. Even in limiting structure space to a single structure type, many different compositions and configurations are possible.
Matthew, Rosseinsky +5 more
core +1 more source
, 2023 Iridium oxide is considered the only practical catalyst for oxygen evolution reaction (OER) in commercial proton exchange membrane (PEM) electrolyzers.
Xulin Mu (14373912) +15 more
core +1 more source
Mononuclear Transition Metal Cymantrenecarboxylates as Precursors for Spinel-Type Manganites
Molecules, 2022 Novel mononuclear cymantrenecarboxylate complexes of transition metals, [Co(H2O)6](CymCO2)2·4H2O (Cym = (η5-C5H4)Mn(CO)3) (1), [Ni(H2O)6](CymCO2)2·4H2O (2), [Zn(H2O)6](CymCO2)2·4H2O (3), [Co(CymCO2)2(imz)2] (imz = imidazole, 4), [Co(CymCO2)2(bpy)2]·2PhMe
Pavel S. Koroteev +4 more
doaj +1 more source
Cerâmica, 2010 O desenvolvimento do setor siderúrgico está intimamente relacionado aos progressos obtidos na produção de refratários. Nas panelas de siderurgia, uma das principais exigências são revestimentos que apresentem excelentes propriedades termomecânicas para ...
E. Y Sako +4 more
doaj +1 more source
Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy
Advanced Engineering Materials, EarlyView.This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb +6 more
wiley +1 more source
, 2010 Effects of mafic alkaline metasomatism have been investigated by a combined study of the East Serbian mantle xenoliths and their host alkaline rocks.
H. Downes +9 more
core +1 more source