ChemInform Abstract: The Role of Reactivity in Wetting by Liquid Metals: A Review

ChemInform ◽  
2016 ◽  
Vol 47 (3) ◽  
Author(s):  
N. Eustathopoulos ◽  
R. Voytovych
Keyword(s):  
Liquid Metals

scholarly journals Advantages of eutectic alloys for creating catalysts in the realm of nanotechnology-enabled metallurgy

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Jianbo Tang ◽  
Rahman Daiyan ◽  
Mohammad B. Ghasemian ◽  
Shuhada A. Idrus-Saidi ◽  
Ali Zavabeti ◽  
...  
Keyword(s):  
Liquid Metals ◽  
Surface Oxidation ◽  
Model System ◽  
Alloy Formation ◽  
Eutectic System ◽  
Eutectic Alloys ◽  
Structural Peculiarity ◽  
Catalytically Active ◽  
Boundary Properties

Abstract The nascent field of nanotechnology-enabled metallurgy has great potential. However, the role of eutectic alloys and the nature of alloy solidification in this field are still largely unknown. To demonstrate one of the promises of liquid metals in the field, we explore a model system of catalytically active Bi-Sn nano-alloys produced using a liquid-phase ultrasonication technique and investigate their phase separation, surface oxidation, and nucleation. The Bi-Sn ratio determines the grain boundary properties and the emergence of dislocations within the nano-alloys. The eutectic system gives rise to the smallest grain dimensions among all Bi-Sn ratios along with more pronounced dislocation formation within the nano-alloys. Using electrochemical CO2 reduction and photocatalysis, we demonstrate that the structural peculiarity of the eutectic nano-alloys offers the highest catalytic activity in comparison with their non-eutectic counterparts. The fundamentals of nano-alloy formation revealed here may establish the groundwork for creating bimetallic and multimetallic nano-alloys.

Role of the reynolds number in modeling natural convection in liquid metals

Atomic Energy ◽  
1998 ◽  
Vol 84 (5) ◽  
pp. 314-319 ◽  
Author(s):  
P. A. Ushakov ◽  
A. P. Sorokin
Keyword(s):  
Reynolds Number ◽  
Natural Convection ◽  
Liquid Metals

Review Lecture - Electrons in liquid metals and other disordered systems

1970 ◽  
Vol 318 (1535) ◽  
pp. 401-420 ◽  
Keyword(s):  
Disordered Systems ◽  
Liquid Metals ◽  
Experimental Situation ◽  
Impurity Band ◽  
Electron Interaction ◽  
Free Electrons ◽  
Molecular Potentials ◽  
Mechanical Interpretation ◽  
Higher Order Corrections

In the past decade, a quantitative theory of the electrical properties of liquid metals has been built up, based upon a model of nearly free electrons scattered by the screened pseudopotentials of the assembly of ions. Within the uncertainties of our knowledge of the pseudopotentials, this simple theory agrees with the experimentally observed resistivity and thermoelectric power of non-transition metals and their alloys. It now seems that higher-order corrections to the n. f. e. formula in such systems are not large enough to be easily observed. Current interest is shifting to systems where the n. f. e. model should not be valid; liquid semiconductors, metallic vapours, metal-ammonia solutions, impurity band semiconductors, and semiconductivity glasses. The experimental situation is not reviewed, but attention is drawn to some basic theoretical questions, such as the nature of the atomic or molecular potentials, the role of electron-electron interaction, the character of the metal-insulator transition, and the quantum mechanical interpretation of such classical physical processes as the localization, percolation, and hopping of electrons in highly disordered materials.

The role of reactivity in wetting by liquid metals: a review

2015 ◽  
Vol 51 (1) ◽  
pp. 425-437 ◽  
Author(s):  
N. Eustathopoulos ◽  
R. Voytovych
Keyword(s):  
Liquid Metals

Role of Diffusion as a Control Stage of a Grain Boundary Liquid Grooving

2006 ◽  
Vol 249 ◽  
pp. 227-230 ◽  
Author(s):  
Nikolai Dolgopolov ◽  
A. Petelin ◽  
S. Rakov
Keyword(s):  
Experimental Data ◽  
Grain Boundary ◽  
Grain Boundaries ◽  
Liquid Metals ◽  
Dominant Role ◽  
Polycrystalline Metal ◽  
Control Stage ◽  
Diffusion Mechanisms

The interaction of liquid metals with solid polycrystalline metal leads to the appearance of liquid grooves at grain boundaries. The shapes of these grooves may be of a very wide variety. In this paper the typical features of different liquid grooves are presented, classified and analyzed on the base of our experimental data. The developed models confirm the dominant role of diffusion mechanisms.

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