Nanoalloying of clusters of immiscible metals and the formation of bimetallic nanoparticles in the conditions of non-synchronous explosion of two wires

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Abstract

The work researches the influence of metal mixing enthalpy on spontaneous nanoalloying of coagulated clusters formed when intertwined Fe/Ag, Ni/Ag, Nb/Сu and Pb/Сu wires with equiatomic composition are exploded. The analysis of temporal dependencies of currents and voltages has shown that the intervals between the successive explosions of Fe/Ag, Ni/Ag, Nb/Сu and Pb/Сu wires are 0.38, 0.26, 0.43 and 0.4 μs, respectively. This explains their asynchronous destruction. It has been found that when wires are exploded, bimetallic Janus and core-shell nanoparticles are formed. The obtained data makes it possible to conclude that when wires explode non-synchronously, clusters coagulate and atoms of metals subsequently intermix. The results of the research demonstrate that the explosion of two wires made of metals with positive mixing enthalpy (from 8 to 116 kJ/g) is a process that can be used to obtain bimetallic nanoparticles with complex structures.

Original languageEnglish
Pages (from-to)855-862
Number of pages8
JournalPowder Technology
Volume360
DOIs
Publication statusPublished - 15 Jan 2020

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Explosions
Metals
Wire
Nanoparticles
Enthalpy
Cable cores
Atoms
Electric potential
Chemical analysis

Keywords

  • Bimetallic nanoparticles
  • Explosion of two wires
  • Immiscible metals
  • Metal mixing enthalpy
  • Nanoalloying of clusters

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

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title = "Nanoalloying of clusters of immiscible metals and the formation of bimetallic nanoparticles in the conditions of non-synchronous explosion of two wires",
abstract = "The work researches the influence of metal mixing enthalpy on spontaneous nanoalloying of coagulated clusters formed when intertwined Fe/Ag, Ni/Ag, Nb/Сu and Pb/Сu wires with equiatomic composition are exploded. The analysis of temporal dependencies of currents and voltages has shown that the intervals between the successive explosions of Fe/Ag, Ni/Ag, Nb/Сu and Pb/Сu wires are 0.38, 0.26, 0.43 and 0.4 μs, respectively. This explains their asynchronous destruction. It has been found that when wires are exploded, bimetallic Janus and core-shell nanoparticles are formed. The obtained data makes it possible to conclude that when wires explode non-synchronously, clusters coagulate and atoms of metals subsequently intermix. The results of the research demonstrate that the explosion of two wires made of metals with positive mixing enthalpy (from 8 to 116 kJ/g) is a process that can be used to obtain bimetallic nanoparticles with complex structures.",
keywords = "Bimetallic nanoparticles, Explosion of two wires, Immiscible metals, Metal mixing enthalpy, Nanoalloying of clusters",
author = "Pervikov, {A. V.} and Suliz, {K. V.} and Lerner, {M. I.}",
year = "2020",
month = "1",
day = "15",
doi = "10.1016/j.powtec.2019.11.003",
language = "English",
volume = "360",
pages = "855--862",
journal = "Powder Technology",
issn = "0032-5910",
publisher = "Elsevier",

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T1 - Nanoalloying of clusters of immiscible metals and the formation of bimetallic nanoparticles in the conditions of non-synchronous explosion of two wires

AU - Pervikov, A. V.

AU - Suliz, K. V.

AU - Lerner, M. I.

PY - 2020/1/15

Y1 - 2020/1/15

N2 - The work researches the influence of metal mixing enthalpy on spontaneous nanoalloying of coagulated clusters formed when intertwined Fe/Ag, Ni/Ag, Nb/Сu and Pb/Сu wires with equiatomic composition are exploded. The analysis of temporal dependencies of currents and voltages has shown that the intervals between the successive explosions of Fe/Ag, Ni/Ag, Nb/Сu and Pb/Сu wires are 0.38, 0.26, 0.43 and 0.4 μs, respectively. This explains their asynchronous destruction. It has been found that when wires are exploded, bimetallic Janus and core-shell nanoparticles are formed. The obtained data makes it possible to conclude that when wires explode non-synchronously, clusters coagulate and atoms of metals subsequently intermix. The results of the research demonstrate that the explosion of two wires made of metals with positive mixing enthalpy (from 8 to 116 kJ/g) is a process that can be used to obtain bimetallic nanoparticles with complex structures.

AB - The work researches the influence of metal mixing enthalpy on spontaneous nanoalloying of coagulated clusters formed when intertwined Fe/Ag, Ni/Ag, Nb/Сu and Pb/Сu wires with equiatomic composition are exploded. The analysis of temporal dependencies of currents and voltages has shown that the intervals between the successive explosions of Fe/Ag, Ni/Ag, Nb/Сu and Pb/Сu wires are 0.38, 0.26, 0.43 and 0.4 μs, respectively. This explains their asynchronous destruction. It has been found that when wires are exploded, bimetallic Janus and core-shell nanoparticles are formed. The obtained data makes it possible to conclude that when wires explode non-synchronously, clusters coagulate and atoms of metals subsequently intermix. The results of the research demonstrate that the explosion of two wires made of metals with positive mixing enthalpy (from 8 to 116 kJ/g) is a process that can be used to obtain bimetallic nanoparticles with complex structures.

KW - Bimetallic nanoparticles

KW - Explosion of two wires

KW - Immiscible metals

KW - Metal mixing enthalpy

KW - Nanoalloying of clusters

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