Mechanism of the formation of the structure and phase state of binary metallic nanoparticles obtained by the electric explosion of two wires made of different metals

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Abstract

Based on the statistical approach to the description of the structure of liquid metals, it has been shown that during wire heating with a current pulse, the drastic local increase in the electric resistance of the liquid metal leads to the development of overheating instability. The increase in the electric resistance of the liquid metal is a consequence of the destruction of individual atom clusters that form short range order in the liquid metal. Non-uniform heating leads to the transition of liquid metal into a two-phase “gas-liquid” state formed by the expanding products of the explosion of wires. The majority of the expanding wire explosion products are liquid phase particles; those coagulate to form a binary melt. It has been shown by the example of Pb/Al, Ag/Cu and Cu/Al nanoparticles forming during the electric explosion of two wires made of different metals that the structure and phase state of the particles is determined by the probability of the formation of the binary melt that depends on the temperature of the coagulating particles.

Original languageEnglish
Pages (from-to)1494-1500
Number of pages7
JournalCurrent Applied Physics
Volume17
Issue number11
DOIs
Publication statusPublished - 1 Nov 2017

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liquid metals
Liquid metals
Explosions
explosions
Metals
wire
Wire
Nanoparticles
nanoparticles
metals
Heating
heating
Liquids
products
destruction
liquid phases
Gases
vapor phases
Atoms
liquids

Keywords

  • Binary nanoparticles
  • Cluster
  • Explosion of wires
  • Overheating instability
  • Short range order

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

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title = "Mechanism of the formation of the structure and phase state of binary metallic nanoparticles obtained by the electric explosion of two wires made of different metals",
abstract = "Based on the statistical approach to the description of the structure of liquid metals, it has been shown that during wire heating with a current pulse, the drastic local increase in the electric resistance of the liquid metal leads to the development of overheating instability. The increase in the electric resistance of the liquid metal is a consequence of the destruction of individual atom clusters that form short range order in the liquid metal. Non-uniform heating leads to the transition of liquid metal into a two-phase “gas-liquid” state formed by the expanding products of the explosion of wires. The majority of the expanding wire explosion products are liquid phase particles; those coagulate to form a binary melt. It has been shown by the example of Pb/Al, Ag/Cu and Cu/Al nanoparticles forming during the electric explosion of two wires made of different metals that the structure and phase state of the particles is determined by the probability of the formation of the binary melt that depends on the temperature of the coagulating particles.",
keywords = "Binary nanoparticles, Cluster, Explosion of wires, Overheating instability, Short range order",
author = "Alexander Pervikov and Marat Lerner",
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T1 - Mechanism of the formation of the structure and phase state of binary metallic nanoparticles obtained by the electric explosion of two wires made of different metals

AU - Pervikov, Alexander

AU - Lerner, Marat

PY - 2017/11/1

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N2 - Based on the statistical approach to the description of the structure of liquid metals, it has been shown that during wire heating with a current pulse, the drastic local increase in the electric resistance of the liquid metal leads to the development of overheating instability. The increase in the electric resistance of the liquid metal is a consequence of the destruction of individual atom clusters that form short range order in the liquid metal. Non-uniform heating leads to the transition of liquid metal into a two-phase “gas-liquid” state formed by the expanding products of the explosion of wires. The majority of the expanding wire explosion products are liquid phase particles; those coagulate to form a binary melt. It has been shown by the example of Pb/Al, Ag/Cu and Cu/Al nanoparticles forming during the electric explosion of two wires made of different metals that the structure and phase state of the particles is determined by the probability of the formation of the binary melt that depends on the temperature of the coagulating particles.

AB - Based on the statistical approach to the description of the structure of liquid metals, it has been shown that during wire heating with a current pulse, the drastic local increase in the electric resistance of the liquid metal leads to the development of overheating instability. The increase in the electric resistance of the liquid metal is a consequence of the destruction of individual atom clusters that form short range order in the liquid metal. Non-uniform heating leads to the transition of liquid metal into a two-phase “gas-liquid” state formed by the expanding products of the explosion of wires. The majority of the expanding wire explosion products are liquid phase particles; those coagulate to form a binary melt. It has been shown by the example of Pb/Al, Ag/Cu and Cu/Al nanoparticles forming during the electric explosion of two wires made of different metals that the structure and phase state of the particles is determined by the probability of the formation of the binary melt that depends on the temperature of the coagulating particles.

KW - Binary nanoparticles

KW - Cluster

KW - Explosion of wires

KW - Overheating instability

KW - Short range order

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