Model of metal surface erosion under irradiation by high-power pulsed ion beams

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Abstract

The mechanisms of erosion of metal surfaces under the action of submicrosecond (10 9-10 6 s) ion beams in the power density range of P = 10 6-10 9W/cm 2 with a particle energy of 1-2000 keV are considered. It is shown that the collective processes associated with the radiation heating of the surface are of great importance. A model for the erosion is proposed. In accordance with this model, the flow of atoms of the target leaving the surface being irradiated consists of two independent components caused by collisional sputtering and evaporation, respectively. The influence of the irradiation parameters on the erosion coefficient and the ratio between the sputtering and evaporation factors is analyzed.

Original languageEnglish
Pages (from-to)24-29
Number of pages6
JournalJournal of Engineering Thermophysics
Volume17
Issue number1
DOIs
Publication statusPublished - Mar 2008

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ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Modelling and Simulation
  • Condensed Matter Physics
  • Environmental Engineering

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