Results 71 to 80 of about 23,542 (292)

A Treatise on Electro-Metallurgy: Embracing the Application of Electrolysis to the Plating, Depositing, Smelting, and Refining of Various Metals, and to the Reproduction of Printing Surfaces and Art-work, etc [PDF]

Nature, 1911
THE work of revising the excellent treatise of the late Mr. W. G. McMillan has, on the whole, been admirably done by Mr. Cooper, although there still remain a few slight errors in the body of the work which might have been corrected. For example, it is manifestly an error to recommend for nickel deposition a solution of 8 pounds of nickel ammonium ...
openaire   +1 more source

Review of trace toxic elements (Pb, Cd, Hg, As, Sb, Bi, Se, Te) and their deportment in gold processing. Part 1: Mineralogy, aqueous chemistry and toxicity [PDF]

, 2011
A literature review on the deportment of trace toxic elements (Pb, Cd, Hg, As, Sb, Bi, Se, and Te) in gold processing by cyanidation is presented which compiles the current knowledge in this area and highlights the gaps.
Breuer, P.L., Bunney, K.G., Kyle, J.H., May, P.M., Pleysier, R.   +4 more
core   +2 more sources

Thermophysical Properties of the Desulphurization Slags With Various CaS and CaO/Al2O3 Ratio

Advanced Engineering Materials, EarlyView.
This article investigates how CaS content and the CaO/Al2O3 ratio influence the thermophysical properties of desulphurization slags. Using experimental measurements and thermodynamic simulations, this study reveals complex effects on viscosity, surface tension, and density, providing new insight into slag structure and phase behavior under ...
Eldar Salpagarov, Matheus Roberto Bellé, Anton Yehorov, Julia Richter, Olena Volkova   +4 more
wiley   +1 more source

Evaluating slag–metal deoxidation equilibrium in secondary steelmaking

Journal of Materials Research and Technology, 2019
Steel–slag reactions are important in steelmaking, in special in secondary steelmaking. Currently, desulfurization, deoxidation and inclusion removal are mostly performed during ladle refining.
Viviane Lima Freitas da Silva, Luciano da Silva Leitão, Jr., Erik de Aguiar Santos, Antônio Carlos Sant’Anna da Silva, André Luiz Vasconcellos da Costa e Silva   +4 more
doaj   +1 more source

Numerical modelling of metal melt refining process in ladle with rotating impeller and breakwaters [PDF]

, 2019
The paper describes research and development of aluminium melt refining technology in a ladle with rotating impeller and breakwaters using numerical modelling of a finite volume/element method. The theoretical aspects of refining technology are outlined.
Merder, Tomasz, Michalek, Karel, Pieprzyca, Jacek, Saternus, Mariola, Sviželová, Jana, Tkadlečková, Markéta, Walek, Josef   +6 more
core   +1 more source

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

Advanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi, Alexander Adamczyk, Nora Brachhold, Gert Schmidt, Jana Hubálková, R. Gumeniuk, Alexandros Charitos, Christos G. Aneziris   +7 more
wiley   +1 more source

Mechanical and microstructural properties of TiO₂-enhanced magnesium composites prepared by powder metallurgy

Next Materials
This study investigates the formulation of magnesium-based nanocomposites reinforced with titanium dioxide (TiO₂) nanoparticles at four different volume fractions (0.5, 1.5, 3, and 5 vol%) by powder metallurgy.
Saba Zuhair Faris, Asaad Kadhim Eqal, Bushra Rashid Mohammed, Haidar Akram Hussein   +3 more
doaj   +1 more source

Effect of Cerium Content on the Evolution of Inclusions and Formation of Acicular Ferrite in Ti-Mg-Killed EH36 Steel

Metals, 2020
Ce has been widely used in oxide metallurgy for modifying inclusions and refining microstructure. Effect of Ce contents on the evolution and characteristics of non-metallic inclusions and the formation of acicular ferrite (AF) in Ce-treated Ti-Mg-killed ...
Zhen Liu, Bo Song, Zhanbing Yang, Xiaokang Cui, Longfei Li, Lei Wang, Zirui Song   +6 more
doaj   +1 more source

China and Brazil Productive Structure and Economic Growth Compared: 1980’s to 2000’s [PDF]

China and Brazil are two countries with continental dimensions, with differences in availability of natural resources, population sizes, and which have adopted different strategies of economic growth in the past.
Guilhoto, Joaquim José Martins, Liu, Hongtao, Polenske, Karen Rosel   +2 more
core   +1 more source

Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena, Benjamin Bergmann, Michael Zenger   +2 more
wiley   +1 more source