Results 91 to 100 of about 65,880 (307)
Application of alternative lixiviants for secondary heap leaching of gold [PDF]
Some preliminary results on the secondary leaching of previously heap leached gold ore are presented. Alternative lixiviants for gold comprising chlorine, thiourea and thiosulphate were compared with cyanide using bottle roll tests.
Nikoloski, A., Stockton, B.
core +1 more source
Low‐consumable nickel ferrite‐based anodes for the Hall–Héroult process are compared with conventional prebaked carbon anodes using thermodynamic simulation and prospective life cycle assessment under contrasting future electricity system pathways from 2025 to 2050.
Felipe Alejandro Garcia Paz +6 more
wiley +1 more source
A robotic platform for high-throughput electrochemical analysis of chalcopyrite leaching [PDF]
A novel robotic platform for combinatorial screening of ionic liquid-based Cu extraction from chalcopyrite with real-time, in situ monitoring of dissolved copper.
Albrecht, T +4 more
core +1 more source
Interaction of Ladle Slag With Varying SiO2 Content and Recyclate‐Based MgO–C Refractories
Ladle slags (CaO/Al2O3 = 1) with 1–20 wt% SiO2 were investigated in contact with industrial MgO–C refractories fabricated from fresh magnesia and 50 wt% recyclate. The sessile drop method at 1600°C reveals intensive gas formation, delayed slag infiltration in recyclate‐based samples, and, under high‐SiO2 slag, formation of a dense MgAl2O4‐rich ...
Anton Yehorov +6 more
wiley +1 more source
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller +8 more
wiley +1 more source
Sergey Vladimirovich Kuz’minykh 65 years
Sergey V. Kuz’minykh, a well-known archeologist in 2016, 65 years old. His monograph “The Volga-Kama Metallurgy in the early Iron Age (Copper and Bronze)” (1983) and his joint monograph with E.N.
Chizhevsky Anrdei A.,
doaj
Paint It Black: The Rise of Metallurgy in the Balkans [PDF]
This paper integrates archaeological, material, microstructural and compositional data of c. 7,000 years old metallurgical production evidence with the aim to address the knowledge of the world’s earliest metalworkers.
Radivojević, M, Rehren, T
core
This study investigates how tramp elements from increased scrap usage influence phase transformations in low‐alloyed steel. Combining dilatometry and microscopy reveal that tramp elements delay transformations, reduce critical cooling rates and increase hardenability.
Lukas Hatzenbichler +5 more
wiley +1 more source
Copper-based powder metallurgy materials are common friction materials in many fields such as aviation, high-speed railway and automobiles because of their good thermal conductivity, stable friction performance and relatively high mechanical properties ...
Zhi Chen +6 more
doaj +1 more source
Metallurgy and properties of plasma spray formed materials [PDF]
Understanding the fundamental metallurgy of vacuum plasma spray formed materials is the key to enhancing and developing full material properties. Investigations have shown that the microstructure of plasma sprayed materials must evolve from a powder ...
Liaw, Y. K. +3 more
core +1 more source

