Structural features of ultrafine powders, generated in conditions of wire electrical explosion

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

2 Citations (Scopus)

Abstract

During several decades the question of the presence or absence of Laplace compression in particles less than 0.1 microns, has been discussed. A consequence of this compression could be an increase of X-ray density in small particles. The study of the structure of final products of wire electrical explosion (ultrafine powders, UFP) has shown that their X-ray density is lower than for metals in a stable massive condition. It is shown that the metals (Al, Cu), not having polymorphic modifications are characterized by a specific defect type-static displacement of atoms concerning X-ray density, lowered up to 0.1-0.2%. In the case of polymorphism of UFP metals, the crystal modifications with lowered density are stabilized: iron as γ-Fe, tungsten as β-W. As regards formation of chemical compounds, oxide UFPs are also formed with lowered X-ray density (γ-Al2O3, TiO2).

Original languageEnglish
Title of host publicationProceedings - KORUS 2000: 4th Korea-Russia International Symposium on Science and Technology
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages277-279
Number of pages3
Volume3
ISBN (Print)0780364864, 9780780364868
DOIs
Publication statusPublished - 2000
Event4th Korea-Russia International Symposium on Science and Technology, KORUS 2000 - Ulsan, Korea, Republic of
Duration: 27 Jun 20001 Jul 2000

Other

Other4th Korea-Russia International Symposium on Science and Technology, KORUS 2000
CountryKorea, Republic of
CityUlsan
Period27.6.001.7.00

Keywords

  • self-organization processes
  • wires electrical explosion

ASJC Scopus subject areas

  • Clinical Biochemistry
  • Computer Networks and Communications
  • Biotechnology
  • Civil and Structural Engineering
  • Mechanics of Materials
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Surfaces, Coatings and Films

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  • Cite this

    Ushakov, V. Y., Ilyin, A. P., Tihonov, D. V., & Yablunovskii, G. V. (2000). Structural features of ultrafine powders, generated in conditions of wire electrical explosion. In Proceedings - KORUS 2000: 4th Korea-Russia International Symposium on Science and Technology (Vol. 3, pp. 277-279). [866098] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/KORUS.2000.866098