Modification of strength properties of oxide materials by ion irradiation

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

Abstract

The effect of ion irradiation on the strength characteristics of magnesium oxide and ceramics based on zirconia is studied. The MgO samples were a single crystal grown in an artificial manner. Samples of zirconium ceramics were prepared by ceramic technology. Irradiation of MgO crystals was carried out by Si+ ions (E = 150 keV), Fe+ (E = 70 keV), C+ (E = 50 keV) at room temperature. The fluence varied within the range (1016-1017) сm-2. The modification of the investigated types of ceramics was carried out by ions Al+ (Е = 60 keV), Ar+ (Е= 60 keV), N+ (E = 50 keV). We used ion beams of microsecond duration and moderate power (the current density in the pulse was 3 10-3 A/cm2). Fluence was 1017 cm-2. The irradiation of the ceramics with an ion beam C+ (E = 50 keV) was also performed with nanosecond duration (τ = 50 ns). It is established that ionic irradiation of magnesium oxide leads to an increase in crack resistance and a critical stress intensity factor. Irradiation of ceramics leads to hardening of its near-surface layers.

Original languageEnglish
Title of host publicationRadiation-Thermal Effects and Processes in Inorganic Materials
EditorsSergey Gyngazov
PublisherTrans Tech Publications Ltd
Pages70-75
Number of pages6
ISBN (Print)9783035714500
DOIs
Publication statusPublished - 1 Jan 2018
Event13th International Conference on Radiation-Thermal Effects and Processes in Inorganic Materials, RTEP 2017 - Tomsk, Russian Federation
Duration: 9 Oct 201714 Oct 2017

Publication series

NameKey Engineering Materials
Volume781 KEM
ISSN (Print)1013-9826

Conference

Conference13th International Conference on Radiation-Thermal Effects and Processes in Inorganic Materials, RTEP 2017
CountryRussian Federation
CityTomsk
Period9.10.1714.10.17

Keywords

  • Ceramics based on zirconia
  • Ions irradiation
  • Magnesium oxide
  • Strength characteristics

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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