Atomistic observation of electron irradiation-induced defects in CeO 2

Seiya Takaki, Tomokazu Yamamoto, Masanori Kutsuwada, Kazuhiro Yasuda, Syo Matsumura

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

2 被引用数 (Scopus)

抄録

We have investigated the atomistic structure of radiation-induced defects in CeCO2 formed under 200 keV electron irradiation. Dislocation loops on {111} habit planes are observed, and they grow accompanying strong strain-field. Atomic resolution scanning transmission electron microscopy (STEM) observations with high angle annular dark-field (HAADF) and annular bright-field (ABF) imaging techniques showed that no additional Ce layers are inserted at the position of the dislocation loop, and that strong distortion and expansion is induced around the dislocation loops. These results are discussed that dislocation loops formed under electron irradiation are non-stoichiometric defects consist of oxygen interstitials.

本文言語英語
ホスト出版物のタイトルAdvances in Materials for Nuclear Energy
ページ93-98
ページ数6
DOI
出版ステータス出版済み - 2013
イベント2012 MRS Fall Meeting - Boston, MA, 米国
継続期間: 11 25 201211 30 2012

出版物シリーズ

名前Materials Research Society Symposium Proceedings
1514
ISSN(印刷版)0272-9172

その他

その他2012 MRS Fall Meeting
Country米国
CityBoston, MA
Period11/25/1211/30/12

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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