Аннотация

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.

Язык оригиналаАнглийский
Страницы (с-по)120-123
Число страниц4
ЖурналNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Том434
DOI
СостояниеОпубликовано - 1 ноя 2018

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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