Structural disordering in magnesium aluminate spinel compounds under ion-beam irradiation

Syo Matsumura, Mikio Shimada, Kazuhiro Yasuda, Chiken Kinoshita

研究成果: Contribution to journalConference article査読

3 被引用数 (Scopus)

抄録

High Angular Resolution Electron Channeling X-ray Spectroscopy (HARECXS) of analytical electron microscopy was employed in quantitative analysis of irradiation-induced structural disordering in MgO·nAl2O 3 spinel compounds irradiated with 1 MeV Ne+ ions and 200 MeV Xe14+ ions. The results successfully show the disordering behavior in MgO·nAl2O3 as a function of composition and irradiation condition. It has been revealed by HARECXS that 1 MeV Ne + irradiation at 873 K causes significant cation-disordering in the pre-peak damaged area where no indication is recognized in conventional TEM observation. Displacement of O2- ions is also recognized in heavily damaged areas. Irradiation with 200 MeV Xe14+ swift ions, on the other hand, forms structurally-disordered cylinders of 4 nm in diameter along their tracks. HARECXS profiles indicate that the disordering takes place over extended areas of about 10 nm in radius centered on the ion tracks.

本文言語英語
ページ(範囲)131-142
ページ数12
ジャーナルMaterials Research Society Symposium - Proceedings
792
DOI
出版ステータス出版済み - 2003
イベントRadiation Effects and Ion-Beam Processing of Materials - Boston, MA., 米国
継続期間: 12 1 200312 5 2003

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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