Results 81 to 90 of about 23,542 (292)
Women, Men, and the Legal Languages of Mining in the Colonial Andes [PDF]
, 2016 Histories of colonial Latin American mining have cemented the image of a scientifically backward society whose pursuit of easy wealth sacrificed the lives of indigenous and African miners in places like Potosí. By examining a mid seventeenth-century mine
Allison Margaret Bigelow
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Advanced Engineering Materials, EarlyView.This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff +9 more
wiley +1 more source
Regional household and poverty effects of Russia's accession to the world trade organization [PDF]
This paper develops a seven-region comparative static computable general equilibrium model of Russia to assess the impact of accession tothe World Trade Organization on these seven regions (the federal okrugs) of Russia.
Rutherford, Thomas, Tarr, David
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Advanced Engineering Materials, EarlyView.The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu +8 more
wiley +1 more source
Progress on Technique for Removal of Inclusions in Steel
Teshugang, 2009 Main links for removal of inclusions in liquid steel are inclusion growth,floating and separating. The key progress on technique for removal of inclusion in steel is gas stirring-ladle argon blowing,gas shielding weir and dam in tundish, RH-NK-RERM ...
幸伟 +4 more
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Advanced Engineering Materials, EarlyView.This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat +7 more
wiley +1 more source
Statistical and kinetic study for leaching of covellite in a chloride media [PDF]
, 2019 Covellite is a relatively rare copper sulfide with slow dissolution kinetics. The present investigation used the surface optimization methodology to evaluate the effect of three independent variables (time, chloride concentration and sulfuric acid ...
Briceño Romero, Williams +5 more
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Advanced Engineering Materials, EarlyView.EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk +7 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Micro‐Raman spectroscopy is applied to characterize corrosion products in a recycled‐based MgO–316L steel composite anode after molten salt electrolysis. A depth‐dependent Fe–O/Fe–Al–O layer sequence of magnetite, hercynite, and an Al‐doped magnetite transition zone is identified.
Felix Drechsler +9 more
wiley +1 more source
Technology of converted cast with electric influence on tank
Литьë и металлургия, 2002 In the Institute of ferrous metallurgy of the National^ Academy of Sciences of the Ukraine there is developed the new technology, provided for application of electric energy of I low capacity, which allows to use more fully the potential capabilities of ...
S. I. Semykin +7 more
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