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Effects of Temperature and Electron Energy on the Defect Evolution Behavior of Pristine and Ion-Irradiated Yttria-Stabilized Zirconia.

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Title: Effects of Temperature and Electron Energy on the Defect Evolution Behavior of Pristine and Ion-Irradiated Yttria-Stabilized Zirconia.
Authors: Bhuian, AKM Saiful Islam1,2 (AUTHOR) saiful.bhuian@baec.gov.bd, Yamamoto, Tomokazu1 (AUTHOR), Yasuda, Hidehiro3 (AUTHOR), Ishikawa, Norito4 (AUTHOR), Yasuda, Kazuhiro1 (AUTHOR)
Source: Nuclear Science & Engineering. Mar2026, Vol. 200 Issue 3, p620-631. 12p.
Subject Terms: *Dislocation loops, *Electron kinetic energy, *Ionizing radiation, *Electron temperature, *Electron beams, *Microstructure, *Yttria stabilized zirconium oxide
Abstract: The nucleation and growth process of extended defects in yttria-stabilized cubic zirconia (8 mol % Y2O3-doped ZrO2) was observed in situ using an ultra-high-voltage electron microscope with varying electron energies (1.25 to 3.0 MeV) and irradiation temperatures (300 to 773 K). Because of differences in mass and threshold displacement energy Ed between anions and cations, two types of dislocation loops—oxygen-type nonstoichiometric dislocation loops and perfect-type dislocation loops—were formed depending on electron energy and irradiation temperature. The intensity distribution of electron flux in the typical electron beam used in this work was found to influence the migration of oxygen interstitials from the center to the peripheral region of the beam, leading to the formation of oxygen-type dislocation loops at the periphery. The role of irradiation temperatures in the nucleation, growth, stabilization, and recovery of defects, such as dislocation loops, is discussed. The threshold displacement energies Ed for Zr and O sublattices were estimated using a well-defined experimental technique and compared with previously reported values. Furthermore, microstructure changes in yttria-stabilized zirconia specimens with 200-MeV Xe ions were examined under electron irradiation. Microstructure change was analyzed in terms of the annihilation and nucleation of point defect clusters at the ion tracks induced by ion irradiation. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
FullText Text:
  Availability: 0
Header DbId: enr
DbLabel: Energy & Power Source
An: 191459068
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Effects of Temperature and Electron Energy on the Defect Evolution Behavior of Pristine and Ion-Irradiated Yttria-Stabilized Zirconia.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Bhuian%2C+AKM+Saiful+Islam%22">Bhuian, AKM Saiful Islam</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> saiful.bhuian@baec.gov.bd</i><br /><searchLink fieldCode="AR" term="%22Yamamoto%2C+Tomokazu%22">Yamamoto, Tomokazu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yasuda%2C+Hidehiro%22">Yasuda, Hidehiro</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ishikawa%2C+Norito%22">Ishikawa, Norito</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yasuda%2C+Kazuhiro%22">Yasuda, Kazuhiro</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Nuclear+Science+%26+Engineering%22">Nuclear Science & Engineering</searchLink>. Mar2026, Vol. 200 Issue 3, p620-631. 12p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Dislocation+loops%22">Dislocation loops</searchLink><br />*<searchLink fieldCode="DE" term="%22Electron+kinetic+energy%22">Electron kinetic energy</searchLink><br />*<searchLink fieldCode="DE" term="%22Ionizing+radiation%22">Ionizing radiation</searchLink><br />*<searchLink fieldCode="DE" term="%22Electron+temperature%22">Electron temperature</searchLink><br />*<searchLink fieldCode="DE" term="%22Electron+beams%22">Electron beams</searchLink><br />*<searchLink fieldCode="DE" term="%22Microstructure%22">Microstructure</searchLink><br />*<searchLink fieldCode="DE" term="%22Yttria+stabilized+zirconium+oxide%22">Yttria stabilized zirconium oxide</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The nucleation and growth process of extended defects in yttria-stabilized cubic zirconia (8 mol % Y2O3-doped ZrO2) was observed in situ using an ultra-high-voltage electron microscope with varying electron energies (1.25 to 3.0 MeV) and irradiation temperatures (300 to 773 K). Because of differences in mass and threshold displacement energy Ed between anions and cations, two types of dislocation loops—oxygen-type nonstoichiometric dislocation loops and perfect-type dislocation loops—were formed depending on electron energy and irradiation temperature. The intensity distribution of electron flux in the typical electron beam used in this work was found to influence the migration of oxygen interstitials from the center to the peripheral region of the beam, leading to the formation of oxygen-type dislocation loops at the periphery. The role of irradiation temperatures in the nucleation, growth, stabilization, and recovery of defects, such as dislocation loops, is discussed. The threshold displacement energies Ed for Zr and O sublattices were estimated using a well-defined experimental technique and compared with previously reported values. Furthermore, microstructure changes in yttria-stabilized zirconia specimens with 200-MeV Xe ions were examined under electron irradiation. Microstructure change was analyzed in terms of the annihilation and nucleation of point defect clusters at the ion tracks induced by ion irradiation. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1080/00295639.2025.2494185
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 12
        StartPage: 620
    Subjects:
      – SubjectFull: Dislocation loops
        Type: general
      – SubjectFull: Electron kinetic energy
        Type: general
      – SubjectFull: Ionizing radiation
        Type: general
      – SubjectFull: Electron temperature
        Type: general
      – SubjectFull: Electron beams
        Type: general
      – SubjectFull: Microstructure
        Type: general
      – SubjectFull: Yttria stabilized zirconium oxide
        Type: general
    Titles:
      – TitleFull: Effects of Temperature and Electron Energy on the Defect Evolution Behavior of Pristine and Ion-Irradiated Yttria-Stabilized Zirconia.
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            NameFull: Bhuian, AKM Saiful Islam
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            NameFull: Yamamoto, Tomokazu
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            NameFull: Yasuda, Hidehiro
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            NameFull: Ishikawa, Norito
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            NameFull: Yasuda, Kazuhiro
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            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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              Value: 200
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              Value: 3
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            – TitleFull: Nuclear Science & Engineering
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