Title of article
Radiation-induced disordering in magnesium aluminate spinel subjected to ionizing radiation
Author/Authors
Shimada، نويسنده , , M and Matsumura، نويسنده , , S and Yasuda، نويسنده , , K and Kinoshita، نويسنده , , C and Chimi، نويسنده , , Y and Ishikawa، نويسنده , , N and Iwase، نويسنده , , A، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
5
From page
1446
To page
1450
Abstract
An analytical electron microscope study was carried out on single crystal specimens of magnesium aluminate spinel irradiated with 200 MeV Xe14+ ions up to 5.0 × 1015 and 2.0 × 1016 ions/m2 at ambient temperature. Bright-field images showed structurally disordered columns of about 4–5 nm in diameter along ion tracks. Tiny pits were observed on the incident surface of the columns. Quantitative HARECXS analysis of atomic configurations revealed that disordering proceeds in more extended regions over 10 nm in diameter. The configurations of Al3+ ions are more disordered than that of Mg2+ ions. The disordered areas are appeared to overlap each other in the specimen irradiated with 2.0 × 1016 ions/m2.
Journal title
Journal of Nuclear Materials
Serial Year
2004
Journal title
Journal of Nuclear Materials
Record number
1361028
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