Structure of Defects and Microstructure Evolution in Oxide Ceramics-Role of Electronic Excitation and Selective Displacement Damage

Research output: Contribution to journalConference article

Abstract

Selective displacement damage in fluorite-type oxides: Charged dislocation loops with oxygen ions are formed on (111) planes Ion tracks in fluorite- and spinel-type oxides: the core region is underdensed (with vacancies). influence region ∼15 nm in diameter (invisible in TEM) interstitial generation to develop dislocation structure Instability of dislocation loops under electronic excitation: dissociate loops into isolated interstitials stability of loops: MgAl2O44>Al2O3.

Original languageEnglish
Article number02004
JournalEPJ Web of Conferences
Volume115
DOIs
Publication statusPublished - Apr 4 2016
Event2015 2nd International Workshop on Irradiation of Nuclear Materials: Flux and Dose Effects - Cadarache, France
Duration: Nov 4 2015Nov 6 2015

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ceramics
damage
microstructure
oxides
defects
fluorite
electronics
excitation
interstitials
oxygen ions
spinel
transmission electron microscopy
ions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

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title = "Structure of Defects and Microstructure Evolution in Oxide Ceramics-Role of Electronic Excitation and Selective Displacement Damage",
abstract = "Selective displacement damage in fluorite-type oxides: Charged dislocation loops with oxygen ions are formed on (111) planes Ion tracks in fluorite- and spinel-type oxides: the core region is underdensed (with vacancies). influence region ∼15 nm in diameter (invisible in TEM) interstitial generation to develop dislocation structure Instability of dislocation loops under electronic excitation: dissociate loops into isolated interstitials stability of loops: MgAl2O44>Al2O3.",
author = "Kazuhiro Yasuda",
year = "2016",
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language = "English",
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