Results 31 to 40 of about 119,992 (349)
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
Optical constants of refractory oxides at high temperatures
, 2013 Many cosmic dust species, among them refractory oxides, form at temperatures higher than 300 K. Nevertheless, most astrophysical studies are based on the room-temperature optical constants of solids, such as corundum and spinel. A more realistic approach
Mutschke, Harald +2 more
core +1 more source
Preparation and electrical properties of dense micro-cermets made of nickel ferrite and metallic copper [PDF]
, 2009 Dense micro-cermets made of nickel ferrites and copper micrometric particles were obtained from partial reduction under hydrogenated atmosphere at 350 C of mixed copper nickel ferrites, and sintering in nitrogen at 980 C.
Baco-Carles, Valérie +4 more
core +3 more sources
Airport veer-off risk assessment: An italian case study [PDF]
, 2017 The objective of this paper is to assess the veer-off risk of an Italian airport that is characterized for having near 12,000 annual movements. The name of this airport is not disclosed for security purposes.
Cantisani, Giuseppe +2 more
core
Advanced Engineering Materials, EarlyView.High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé +5 more
wiley +1 more source
First-principles study of possible shallow donors in ZnAl2O4 spinel [PDF]
, 2013 ZnAl2O4 (gahnite) is a ceramic which is considered a possible transparent conducting oxide (TCO) due to its wide band gap and transparency for UV. Defects play an important role in controlling the conductivity of a TCO material along with the dopant ...
Cottenier, Stefaan +5 more
core +1 more source
Atomic Size Misfit for Electrocatalytic Small Molecule Activation
Advanced Functional Materials, EarlyView.This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong +3 more
wiley +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
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
Magneto-dielectric and Magneto-resistive in the Mixed Spinel MgFe2O4
, 2017 The mixed spinel, MgFe2O4 has been synthesized by ball-milling assisted sintering method. X-ray diffraction study confirms formation of cubic MgFe2O4 and the lattice parameter values calculated are a = b = c = 8.369(3) {\AA}.
devi, N. Aparna +3 more
core +1 more source