Results 61 to 70 of about 31,354 (260)

Stepwise Reduction of Ruthenium and Growth of Magnetic Structure During Hydrothermal Crystallisation of SrRu2O6 from KRuO4

Angewandte Chemie, Volume 138, Issue 2, 9 January 2026.
In situ neutron powder diffraction data collected while heating the Ru(VII) reagent KRuO4 in the presence of aqueous Sr2+ reveal the crystallisation of a Ru(VI) oxyhydroxide before the expected Ru(V) oxide; at the same time evolution of antiferromagnetism in the final SrRu2O6 product follows the growth of its crystal structure.
Mark Crossman, Craig I. Hiley, Helen Y. Playford, Chris M. Goodway, Ronald I. Smith, Thomas C. Hansen, Richard I. Walton   +6 more
wiley   +2 more sources

Chromite. Processing and Applications

The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2019
In the paper are shown the history, processing and applications of chromite. Chromite is an oxide of iron and chromium with the chemical composition FeO.Cr2O3 and belonging to the spinel group.
Marius VASILESCU, Mircea DOBRESCU
doaj   +1 more source

Neoproterozoic ultramafic and mafic magmatism in the Eastern Cordillera of the central peruvian Andes: the Tapo Massif [PDF]

, 2010
A highly dismembered assemblage of ultramafic and mafic rocks is exposed in the Eastern Cordillera of the Central Peruvian Andes, extending along a discontinuous NW-SE belt over some 250 km between 12° and 9° S of latitude.
Acosta, Jorge, Castroviejo Bolibar, Ricardo, Pereira, Eurico, Rodrigues, Jose F., Tassinari, Colombo G.   +4 more
core   +2 more sources

Outline of a Washing Treatment to Improve Electric Arc Furnace Slag Environmental Behavior

steel research international, EarlyView.
This study evaluates a water‐washing treatment for electric arc furnace slag to reduce the leaching of hazardous elements (Cr, Ba, Mo, and V), enabling its reuse. The process effectively decreases leachate concentrations. Using the treated slag as a substitute aggregate in concrete reduces greenhouse gases emissions by 42.5% compared to landfilling ...
Luca Testini, Davide Mombelli, Giovanni Dotelli, Mario Grosso, Carlo Mapelli   +4 more
wiley   +1 more source

New Magnetite Reference Material for SIMS δ18O Measurements and a Study of Precision and Accuracy Due to Crystal Orientation Effects

Geostandards and Geoanalytical Research, EarlyView.
Key Points A new magnetite reference material (PF21mt) is available for δ18O measurements by SIMS. Reproducibility of measurement results in two laboratories suggest orientation bias of ±2‰ (2s) at 20 keV. Repeatability improves to ±1‰ (2s) when using a 13 keV protocol, suggesting reduced orientation bias. In situ isotope ratio measurements provide the
Michelle Ulrich, Daniela Rubatto, Maria Rosa Scicchitano, Benita Putlitz, Thomas Bovay   +4 more
wiley   +1 more source

Oxidation consolidation characteristics of chromite pellets during the roasting process

工程科学学报, 2016
The roasting consolidation characteristics of chromite pellets were systematically studied in this paper. The results show that preheating time has little effect on the compressive strength of preheating chromite pellets. Under the appropriate preheating
GAN Min, GAO Lu, FAN Xiao-hui, CHEN Xu-ling, TIAN Zhi-yuan, ZHOU Xun-wei   +5 more
doaj   +1 more source

Formation and evolution of the chromitites of the Stillwater Complex : a trace element study [PDF]

, 2011
Large layered intrusions, such as the Stillwater Complex, contain cyclic units of chromite-rich layers (cm to m thick) having kilometre-scale lateral extension.
Barnes, Sarah-Jane, Pagé, Philippe, Zientek, Michael L.   +2 more
core   +1 more source

Probing magnetic order in EELS of chromite spinels using both multiple scattering (FEFF8.2) and DFT (WIEN2k) [PDF]

, 2010
The electron energy loss near edge structure on the O K-edge from chromite spinels contains fine structure from the hybridisation of the O p-orbitals and the Cr d-orbitals.
A.J. Craven, Ankudinov, D.A. Eustace, D.W. McComb, Docherty, Egerton, Egerton, Ehrenberg, Eustace, Greedan, Hohenberg, Ishibashi, Keast, Klie, Kohn, Laskowski, Lee, Martinho, McComb, Muller, Müller, Pailloux, Pines, Schiessl, Schwarz, Scott, Shaked, Tomiyasu, Tomiyasu, Ueno, van Aken   +30 more
core   +1 more source

New knowledge about shock events that affected the L‐chondrite parent body from two heavily shocked L6 meteorite finds

Meteoritics &Planetary Science, EarlyView.
Abstract We report new results from a study of shock‐related features in the L6 ordinary chondrites Northwest Africa (NWA) 4672 and NWA 12841. Our observations confirm the occurrence of eight high‐pressure (HP) minerals in each meteorite, namely, ringwoodite, majorite, akimotoite, wadsleyite, albitic jadeite, lingunite, tuite, and xieite.
I. Baziotis, L. Ferrière, C. Ma, J. Hu, D. Palles, P. D. Asimow   +5 more
wiley   +1 more source

Geochemical and petrographic re‐evaluation of ungrouped iron meteorites from Western Australia

Meteoritics &Planetary Science, EarlyView.
Abstract Under the current classification scheme, ungrouped irons make up ~11% of all recognized iron meteorites. A further ~7% of iron meteorites are currently classified as simply “irons” and are yet to be fully classified. To potentially classify these meteorites, newer approaches, including either statistical modeling or advanced geochemical ...
Ashley Rogers, Lucy Forman, Kai Rankenburg, Rachel Kirby, Martin Danišík, Victoria Cousins, Gretchen K. Benedix   +6 more
wiley   +1 more source