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Electrochemical reduction of tungsten (VI) oxide from a eutectic melt CaCl2-NaCl under potentiostatic conditions [PDF]

open access: yesJournal of the Serbian Chemical Society, 2022
The paper presents results of the study of the electrochemical reduction of tungsten(VI) oxide in a melt of the eutectic composition 52 mol% CaCl2 and 48 mol% NaCl at a liquid gallium electrode.
Bosenko Olha   +3 more
doaj   +1 more source

Evaluation of the Degree of Dissociation of A Congruent Compound Fe2Ti across the Bjerrum–Guggenheim Coefficient

open access: yesMetals, 2022
This article describes a new quantitative evaluation method for the degree of dissociation of a compound depending on the curvature of the liquidus line curve.
Vera Vladimirovna Tolokonnikova   +4 more
doaj   +1 more source

Effect of Copper on the Formation of L12 Intermetallic Phases in Al–Cu–X (X = Ti, Zr, Hf) Alloys

open access: yesMetals, 2022
Transition metal trialuminides of the Al3X type of groups 4 and 5 of the periodic system have reduced density, high melting points, and corrosion resistance. Aluminides with a cubic lattice of the Al3Sc type can be used as a nucleating phase for aluminum
Elvira Popova   +4 more
doaj   +1 more source

On the solubility of gases in liquid casting alloys

open access: yesЛитьë и металлургия, 2023
It has been shown that hydrogen and oxygen atoms cannot be present in the open pores of crystal lattices of base metals of casting alloys. The solubility of gases in liquid casting alloys is a nanostructured process.
E. I. Marukovich   +2 more
doaj   +1 more source

Mechanisms of influence of modifiers on crystallization of tin and aluminium bronzes

open access: yesЛитьë и металлургия, 2023
It has been shown that elementary crystalline cells of α‑phases of tin, aluminum bronzes and main modifying phases do not correspond to the principle of structural and dimensional correspondence of Dankov‑Konobeevsky.
E. I. Marukovich   +2 more
doaj   +1 more source

On the stability of aluminum oxide in carbon steel melts

open access: yesЛитьë и металлургия, 2023
It is shown that hydrogen atoms in carbon steel melts are surface‑active elements for aluminum oxide microcrystals. Adsorbed hydrogen atoms reduce the interfacial surface energy and increase the resistance of small aluminum oxide microcrystals to ...
E. I. Marukovich   +2 more
doaj   +1 more source

Influence of hydrogen on formation of primary structures of tin and aluminium bronze

open access: yesЛитьë и металлургия, 2023
It is shown that hydrogen is a demodifying element of primary structures of tin and aluminum bronzes during their crystallization. The mechanism of influence of hydrogen on the formation of primary structures of tin and aluminum bronzes can be explained ...
E. I. Marukovich   +2 more
doaj   +1 more source

Mechanisms of modification of magnesium– manganese alloys

open access: yesЛитьë и металлургия, 2023
It is shown that the main modifying phases cannot serve as centers of crystallization of α‑phase microcrystals during solidification of magnesium‑manganese alloys.The superheating modification of these alloys is an adsorption‑nanostructural process.
E. I. Marukovich   +2 more
doaj   +1 more source

Atomic structure, diffusivity and viscosity of Al1-xMgx melts from ab initio molecular dynamics simulations [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2021
Atomic structure, diffusivity and viscosity of Al1-xMgx (x=0, 0.0039, 0.1172, 0.9180, 0.9961, 1)melts at 875, 1000, 1125, and 1250K were investigated by the ab initio molecular dynamics (AIMD) simulations.
Gao Q.-N.   +5 more
doaj   +1 more source

New records of arthropods from the priority Natura 2000 habitats in Estonian coastal areas [PDF]

open access: yesCheck List, 2023
The ground-dwelling arthropod fauna of Estonia has been unevenly studied, and there are significant gaps of knowledge regarding microarthropods. Our study focused on alvars and both coastal and wooded grasslands within the Natura 2000 network in Estonia.
Kaarel Sammet   +3 more
doaj   +3 more sources

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