Results 51 to 60 of about 1,079 (210)

Experimental and Thermodynamic Modeling Study of Phase Equilibria in the FeO–Fe2O3–SnO–SnO2–SiO2 System

Journal of the American Ceramic Society, Volume 109, Issue 5, May 2026.
ABSTRACT Experimental investigation and thermodynamic modeling of the phase equilibria in the FeO–Fe2O3–SnO–SnO2–SiO2 system have been undertaken to characterize Sn behavior in iron silicate slags for recycling of waste electrical and electronic materials (WEEE) through black copper process.
Maksym Shevchenko, A. Ilyushechkin, Evgueni Jak   +2 more
wiley   +1 more source

Solid state chemistry of copper chromite used as a catalyst for the burning of ammonium perchlorate/polystyrene propellants

, 1980
The formation of copper chromite by solid-state reaction between basic copper carbonate and chromium carbonate has been investigated. It has been established that the extent of reaction is 98% even when the reactants are heated for 15 min at 800°C.
Dubey, B. L., Singh, Gurdip, Rastogi, R. P., Shukla, C. S.   +3 more
core   +1 more source

Alkali Vapor Corrosion of Spinel (MgAl2O4) and Gahnite (ZnAl2O4) Refractories—A Comparative Study

Journal of the American Ceramic Society, Volume 109, Issue 5, May 2026.
ABSTRACT Alkali vapor corrosion is critical for refractories used in the kilns and furnaces of diverse high‐temperature processing and manufacturing sectors such as gasifiers, cement production, and glass making. Gahnite (ZnAl2O4) is being investigated as a potential chrome‐free refractory because of its similarity with the structure and properties of ...
Rajat Durgesh Ramteke, James G. Hemrick, Manoj K. Mahapatra   +2 more
wiley   +1 more source

Optimization of Synergistic Reduction of Copper Smelting Slag and Chromite for Production of Cu-Cr-Fe Master Alloys

Metals
Cu and Cr are the essential alloying elements for low-Ni stainless steels. An effective and economical method has been developed for the direct production of Cu-Cr-Fe master alloys through the synergistic reduction of chromite and copper smelting slag ...
Yaoan Xi, Yi Qu, Sui Xie, Jinfa Liao, Baojun Zhao   +4 more
doaj   +1 more source

CI chondrite Oued Chebeika 002 links asteroids Bennu and Ryugu to common parent body

Meteoritics &Planetary Science, Volume 61, Issue 5, Page 801-818, May 2026.
Abstract CI chondrites are a compositionally primitive group of meteorites that have undergone extensive aqueous alteration, providing insights into the evolution of primitive planetesimals. Oued Chebeika 002 is the most pristine CI chondrite to date.
Megan Broussard, Katharina Lodders, Paul K. Carpenter, Piers Koefoed, Karen Ziegler, Kunihiko Nishiizumi, Marc W. Caffee, Laurence A. J. Garvie, Ryan C. Ogliore, Anthony J. Irving, Bradley L. Jolliff, Kun Wang   +11 more
wiley   +1 more source

The state of absorbed hydrogen in the structure of reduced copper chromite from the vibration spectra

, 2009
Khassin, Alexander A. Kustova, Galina N. Jobic, Herve Yurieva, Tamara M. Chesalov, Yury A. Filonenko, Georgii A. Plyasova, Lyudmila M. Parmon, Valentin N.The reduction of copper chromite, CuCr2O4, is followed by means of thermogravimetric analysis.
Jobic, H., Plyasova, L. M., Parmon, V. N., Khassin, A. A., Filonenko, G. A., Chesalov, Y. A., Yurieva, T. M., Kustova, G. N.   +7 more
core   +1 more source

Iodimetry method of endogenous deposits search

RUDN Journal of Engineering Research, 2013
The article deals with the theoretical background for the application of iodometry search of endogenous deposits, particularly the behavior of iodine above the ore bodies.
V V Diakonov, A E Kotelnikov, V E Markov, E E Kotelnikov, N A Gorg   +4 more
doaj  

Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution

Advanced Engineering Materials, Volume 28, Issue 8, 22 April 2026.
Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat, Hamidreza Enshaei, Elaine Armelin, José I. Iribarren, Antonio Mateo, Miguel Morales   +5 more
wiley   +1 more source

Assessing gold-bearing potential of the Kvarhush area (Western slope of the Urals, Perm krai) [PDF]

Минералогия
The paper examines the morphology and composition of native gold from placers of the Kvarkush region (Perm krai). Using optical and electron microscopy, 149 native gold grains from three placers are studied.
M.D. Shamsutdinov, S.V. Petrov
doaj   +1 more source

Understanding the Dynamics of Nanoparticle Formation and Evolution in Functional Oxides via In Situ SAXS/WAXS

Advanced Materials Interfaces, Volume 13, Issue 7, 7 April 2026.
In situ SAXS/WAXS enables real‐time tracking of nanoparticle formation and evolution in exsolved and infiltrated Ni‐based perovskites under reducing conditions. The combined technique captures nucleation, growth, and coarsening dynamics with high temporal resolution, providing statistically robust insights into structural and morphological ...
Elena Vicente, Sylvio Haas, Jose Manuel Serra, María Balaguer, Cecilia Solís   +4 more
wiley   +1 more source