Results 51 to 60 of about 7,842 (218)
Bismuth-nickel mineralization in chromitites of Mariinskii deposit (Urals emerald mines)
Литосфера, 2018 The unusual Bi-Ni mineralization, represented by parkerite, millerite, bismutohauchecornite, bismuthinite, nickeline and, possibly nickel analogue of smythite (?), found in the metasomatically altered chromite rocks of the Mariinsky emerald-beryllium ...
Mikhail P. Popov +2 more
doaj +2 more sources
Journal of Aerospace Technology and Management, 2011 Copper chromites are well known as burning rate catalysts for the combustion of composite solid propellants, used as a source of energy for rocket propulsion.
Eunice Aparecida Campos +5 more
doaj
Journal of the Turkish Chemical Society, Section A: Chemistry, 2023 65 Türkçe Barbaros AKKURT Journal of the Turkish Chemical Society Section A: Chemistry Araştırma Makalesi EN Cobalt-Containing Oxide Catalysts Obtained by The Sol-Gel Method with Auto-Combustion in The Reaction of Low ...
Sima ZULFUGAROVA +3 more
doaj +1 more source
Gas phase selective hydrogenation of furfural to furfuryl alcohol and 2-methylfuran over Cu-CeO2 coprecipitated catalysts [PDF]
, 2015 Furfural is an important chemical derived from lignocellulosic biomass, in particular from C5 sugars like xylose, and it is considered as a platform molecule of great potential for the synthesis of a broad spectrum of chemicals.
Cecilia, Juan Antonio +5 more
core
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 +2 more
wiley +1 more source
Geologists of Russian origin in Latin America [PDF]
, 2018 Se describe la vida y trayectoria de geólogos que más allá de su nacionalidad (rusa, ucraniana, tártara, alemana, etc.), nacieron en territorios que pertenecieron al Imperio Ruso, la Unión Soviética o la Federación Rusa, y de sus descendientes graduados ...
Alonso, Ricardo +7 more
core +1 more source
Competing Jahn Teller distortions and ferrimagnetic ordering in the geometrically frustrated system Ni1 xCuxCr2O4 [PDF]
, 2015 Competing Jahn Teller distortions combined with geometrical frustration give rise to a rich phase diagram as a function of x Cu and temperature in the spinel system Ni1 xCuxCr2O4. The Jahn Teller distortion of the end members acts in opposite ways, with
Hoser, A. +5 more
core +2 more sources
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 +2 more
wiley +1 more source
FirePhysChemThis work details the study conducted on composite solid propellants with activated copper chromite (ACR) as burn catalyst for its burn rate change with time due to the interaction of ammonium perchlorate (AP) with ACR.
Sathiskumar PS +3 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 +11 more
wiley +1 more source