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

Fingerprint

Microhardness
microhardness
Alumina
aluminum oxides
ceramics
Current density
Ions
Irradiation
current density
Processing
Phase composition
Ion beams
irradiation
ions
ion beams
beam leads
Particle accelerators
accelerators
mechanical properties
X ray diffraction

Keywords

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

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

@article{4cde6d704e7849ecb47fb63364de8473,
title = "Ion processing of alumina ceramics by high-power pulsed beams",
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.",
keywords = "Alumina ceramics, Carbon ions, High-power beam, Microhardness",
author = "Sergei Ghyngazov and Sergey Pavlov and Valeria Kostenko and Anatoly Surzhikov",
year = "2018",
month = "11",
day = "1",
doi = "10.1016/j.nimb.2018.08.037",
language = "English",
volume = "434",
pages = "120--123",
journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",
issn = "0168-583X",
publisher = "Elsevier",

}

TY - JOUR

T1 - Ion processing of alumina ceramics by high-power pulsed beams

AU - Ghyngazov, Sergei

AU - Pavlov, Sergey

AU - Kostenko, Valeria

AU - Surzhikov, Anatoly

PY - 2018/11/1

Y1 - 2018/11/1

N2 - 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.

AB - 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.

KW - Alumina ceramics

KW - Carbon ions

KW - High-power beam

KW - Microhardness

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U2 - 10.1016/j.nimb.2018.08.037

DO - 10.1016/j.nimb.2018.08.037

M3 - Article

VL - 434

SP - 120

EP - 123

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

SN - 0168-583X

ER -