Electrical resistivity of NaPb compound-forming liquid alloy using abinitio pseudopotentials

Thakur, Archana; Negi, N. S.; Ahluwalia, P. K.

doi:10.1007/bf02898622

Cited by 6 publications

(2 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This effect can be displayed in analyzing the structural factors, S NN (q), S NC (q), and S CC (q), measured and calculated on various models [2,5,7]. It is also characterized by a sharp change of the alloy entropy [1] or an increase of the alloy electric resistance [3,12] at x Pb ∼ 0.25 as well as a deviation of alloy composition fluctuations from the ideal mixture shown in Figure 1 as a function of S CC (q) q → 0 depending on the composition of the Na-Pb alloy [2].…”

Section: The Cluster Model Of Na-pb Alloymentioning

confidence: 99%

Molecular Dynamics Simulation of the Clustering of Minor Lead Additives in Liquid Sodium

Shimkevich

2011

Journal of Metallurgy

View full text Add to dashboard Cite

A strong influence of minor lead additives on the liquid sodium microstructure is revealed in the molecular dynamics (MD) simulation of the Na0.98Pb0.02 alloy. The obtained results can be explained by the existence of lead-sodium clusters in liquid sodium built up by ionic bonds, Na+–Pb−, due to essential distinction of the alloy components in the electronegativity. On this reason, MD simulation of the Na0.98Pb0.02 alloy is carried out within the framework of a three-component bipolar model, Na + Na+ + Pb−, with Na↔Na+ recharging the nearest-neighbor particles of solvent in every 3 ps (an optimal period) during the numerical run.

show abstract

Section: The Cluster Model Of Na-pb Alloymentioning

confidence: 99%

Molecular Dynamics Simulation of the Clustering of Minor Lead Additives in Liquid Sodium

Shimkevich

2011

Journal of Metallurgy

View full text Add to dashboard Cite

show abstract

“…The first cluster is set conditions for the compound of Na 15 Pb 4 in this system and its managing the microstructure of liquid alloy in the sodium side of phase diagram. This effect is disclosed by a sharp change of the alloy entropy [3,5] and the increase of its electric resistance [1,6].…”

Section: Introductionmentioning

confidence: 99%

Eutectic Na–Tl and Pb–Mg alloys as liquid-metal coolants for fast nuclear reactors

Alekseev¹,

Shimkevich²,

Shimkevich³

2015

Computational Methods and Experimental Measurements XVII

View full text Add to dashboard Cite

The liquid-metal microstructure is a correct subdivision of Delaunay simplexes (triangular pyramids with atoms in their vertexes). Its dense part consists of almost regular tetrahedrons connected by faces in ramified clusters. Any metal additive (as a second component of alloy) can be outside of these tetrahedral clusters or into them as a constituent of dense liquid part. These structural states of liquid alloy convert to each other at its eutectic composition. Such the polymorphic conversion of the liquid-metal alloy is approved by moleculardynamics simulating the Pb-K alloy and can be applied to any eutectic, for example, Na0.93Tl0.07 with the melting point of 64 C. At the sodium side of this point, a homogeneous solution of thallium is formed in liquid sodium which becomes the colloidal one with clusters, (Na 6 Tl) n , when it is passing the eutectic point. Such the modified sodium coolant enriched by the isotope, 205 Tl, can appear attractive for inhibiting the chemical activity of this coolant maintained by oxygen-free technology. An alternative liquid-metal coolant for fast nuclear reactors is eutectic, Pb 0.83 Mg 0.17 , with the melting point of 248 C. This liquid alloy as a modified lead coolant maintained by the same oxygen-free technology can appear attractive for inhibiting the high corrosion activity of molten lead.

show abstract

Energetics of mixing in Bi–Pb and Sb–Sn liquid alloys

Awe

Odusote

Akinlade

et al. 2008

Physica B: Condensed Matter

View full text Add to dashboard Cite

Electrical resistivity of NaPb compound-forming liquid alloy using abinitio pseudopotentials

Cited by 6 publications

References 31 publications

Molecular Dynamics Simulation of the Clustering of Minor Lead Additives in Liquid Sodium

Molecular Dynamics Simulation of the Clustering of Minor Lead Additives in Liquid Sodium

Eutectic Na–Tl and Pb–Mg alloys as liquid-metal coolants for fast nuclear reactors

Energetics of mixing in Bi–Pb and Sb–Sn liquid alloys

Contact Info

Product

Resources

About