Results 21 to 30 of about 1,079 (210)
Production and Characterization of Magnesium‐Doped Copper Chromite Fibers
physica status solidi (a), 2017 In this study, Mg‐doped CuCr1−xMgxO2 (x = 0, 0.01, 0.03, 0.05) fibers are synthesized via electrospinning process followed by a two‐step heat treatment in air and Ar atmospheres. The produced samples are all crystalline with a fiber diameter ranging from 120 to 140 nm.
Ismail C. Kaya, Hasan Akyildiz
openaire +2 more sources
Ceramics, 2020 The microstructure of a direct-bonded chromite-magnesia refractory brick, typically used in copper and platinum converters, was modified by adding different amounts of nano-size TiO2 to the raw material mixture.
Johan PR De Villiers +2 more
doaj +1 more source
Defence Technology, 2017 Composite solid propellant is prepared using tri-modal Ammonium perchlorate (AP) containing coarse, fine and ultrafine fractions of AP with average particle size (APS) 340, 40 and 5 μm respectively, in various compositions and their rheological ...
K.V. Suresh Babu +4 more
doaj +1 more source
Boletín de la Sociedad Española de Cerámica y Vidrio, 2020 The refractory used in the pyrometallurgical furnaces is periodically replaced because of wear. Refractory wear is determined by contact with the molten phases that interact with the refractory, in which chemical reactions are significant.
Ismael Pérez +4 more
doaj +1 more source
Mineral Resources Potential of Vietnam and Current State of Mining Activity
Applied Environmental Research, 2014 Vietnam, with an area of 331,210 km2, occupies the eastern side of the Indochina peninsula. It forms a narrow (locally only 40-70 km) band of land, extending over 1,500 km along the East Sea (South China Sea). Vietnam is constituted mainly by the folded
Nguyen Ngoc Khoi
doaj +7 more sources
Advanced Materials, EarlyView.The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela +4 more
wiley +1 more source
Chemical degradation mechanisms of magnesia–chromite refractories in the copper smelting furnace
, 2018 Magnesia–chromite refractory has been extensively used in the copper-making industry. It is necessary to understand the degradation mechanisms of the current refractory to develop new refractories.
Chen, Mao +4 more
core +1 more source
Inverse Co-precipitation Synthesis of Copper Chromite Nanoparticles [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2016 In this study, copper chromite (CuCr2O4) nanoparticles was prepared by inverse co-precipitation method. In this method, cupric nitrate trihydrate, (Cu (NO3)2.3H2O) and chromium nitrate nonahydrate, (Cr (NO3) 3.9H2O) with a mole ratio of 1:2 were used ...
Hassan Tavakoli +2 more
doaj
Emerging Materials and Future Strategies for Solid Oxide Electrochemical Cells
Advanced Energy Materials, EarlyView.Solid oxide electrochemical cells operate under strongly coupled electrochemical and thermodynamic conditions, where performance is constrained by interactions among crystal structure, defect chemistry, and interfacial evolution. This review, based on a structure‐defect‐property‐durability framework, reveals the roles of lattice symmetry and defect ...
Qiuchun Lu +4 more
wiley +1 more source
Journal of Raman Spectroscopy, EarlyView.An interdisciplinary in situ study of jewelled reliquaries of the True Cross integrates gemmology and portable analytical techniques, revealing new evidence on the identification and symbolic role of peridots and other gemstones. ABSTRACT Jewelled crosses containing relics of the True Cross occupy a central position in the devotional, artistic and ...
Stefania Martiniello +2 more
wiley +1 more source