Atomic structure of ion tracks and microstructure evolution in oxides irradiated with swift heavy ions

K. Yasuda, T. Yamamoto, S. Takaki, S. Matsumura, N. Ishikawa

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

抄録

We have investigated the structure of ion tracks in magnesium aluminate spinel (MgAl2O4) and ceria (CeO2) irradiated with 200 MeV Xe ions. Transmission electron microscopy (TEM) and scanning transmission electron microscopy (STEM) techniques have shown that ion tracks in both materials retain crystallinity. The atomic density inside the core damage region of ion tracks is decreased to generate interstitial atoms at the peripheral region. Overlap of high-density electronic excitation at high fluence has revealed the development of dislocation structure in both MgAl 2O4 and ceria CeO2: the preferential occupation of cations in tetrahedral sites was found in MgAl2O4, and the formation of small sub-grains was observed in CeO2.

本文言語英語
ホスト出版物のタイトル11th International Topical Meeting on Nuclear Applications of Accelerators, AccApp 2013
出版社Belgian Nuclear Research Center
ページ7-11
ページ数5
ISBN(印刷版)9781629938288
出版ステータス出版済み - 1 1 2013
イベント11th International Topical Meeting on Nuclear Applications of Accelerators, AccApp 2013 - Bruges, ベルギー
継続期間: 8 5 20138 8 2013

出版物シリーズ

名前11th International Topical Meeting on Nuclear Applications of Accelerators, AccApp 2013

その他

その他11th International Topical Meeting on Nuclear Applications of Accelerators, AccApp 2013
国/地域ベルギー
CityBruges
Period8/5/138/8/13

All Science Journal Classification (ASJC) codes

  • 原子力エネルギーおよび原子力工学

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