Dynamics of bicomponent nanoparticle formation under metal wire explosion

Zolnikov Konstantin Petrovich, Kryzhevich Dmitrij Sergeevich, Korchuganov Aleksandr Vyacheslavovich, Sergey Grigorievich Psakhie

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A molecular dynamics simulation of bi-component nanoparticle formation under synchronous electric explosion of Cu and Ni wires was carried out. The approximation of the embedded atom method for a description of the interatomic interactions was used. The simulated nanowires had a cylindrical shape. Periodic boundary conditions were used along the cylinder axis, while in the other directions a free surface was simulated. Heating of the nanowires was performed by scaling of the atomic velocities following a linear law while maintaining a Maxwell distribution. It was shown that as a result of the synchronous electrical dispersion of metal wires the bicomponent nanoparticles having a block structure may be formed. The basic mechanism of particle synthesis was the agglomeration of smaller clusters, and the minor one was the deposition of atoms from the gas phase on the particle surfaces. It was found that the distribution of chemical elements was non-uniform over the cross section of the synthesized particles. The concentration of Cu atoms in the subsurface region was higher than in the particle volume. It was noted that the method of molecular dynamics can effectively be used to select the optimal technological mode of producing nanoparticles with a block structure using electric explosion of metal wires.

Original languageEnglish
Title of host publicationMaterials Structure and Micromechanics of Fracture VIII
PublisherTrans Tech Publications Ltd
Pages57-60
Number of pages4
Volume258 SSP
ISBN (Print)9783038356264
DOIs
Publication statusPublished - 2017
Event8th International Conference on Materials Structure and Micromechanics of Fracture, MSMF8 - Brno, Czech Republic
Duration: 27 Jul 201629 Jul 2016

Publication series

NameSolid State Phenomena
Volume258 SSP
ISSN (Electronic)1662-9779

Conference

Conference8th International Conference on Materials Structure and Micromechanics of Fracture, MSMF8
CountryCzech Republic
CityBrno
Period27.7.1629.7.16

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Keywords

  • Electrical explosion
  • Molecular dynamics
  • Nanoparticles

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Petrovich, Z. K., Sergeevich, K. D., Vyacheslavovich, K. A., & Psakhie, S. G. (2017). Dynamics of bicomponent nanoparticle formation under metal wire explosion. In Materials Structure and Micromechanics of Fracture VIII (Vol. 258 SSP, pp. 57-60). (Solid State Phenomena; Vol. 258 SSP). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/SSP.258.57