4 Citations (Scopus)

Abstract

The modification effects of the subsurface layers of alumina ceramics under irradiation by high-power carbon beam are investigated. Irradiation was performed on TEMP ion beam accelerator at a residual pressure of 10−4 Torr. The energy of accelerated ions was 200 keV. The current density per pulse varied within 15–85 A/cm2. Mechanical properties and phase composition in subsurface ceramics layers before and after irradiation were analyzed by microhardness testing and X-ray diffraction, respectively. No changes in the ceramics phase composition were observed. It was found that the treatment of ceramics with a powerful pulsed ion beam leads to a significant change in the microhardness of subsurface layers. The increase in microhardness depends on the current density and the deposited energy. The greatest increase in microhardness (up to 2.5 times) is observed at a current density of 50 A/cm2.

Original languageEnglish
Pages (from-to)120-123
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume434
DOIs
Publication statusPublished - 1 Nov 2018

Keywords

  • Alumina ceramics
  • Carbon ions
  • High-power beam
  • Microhardness

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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