論文

査読有り
2020年

Local Structure Investigations of Accumulated Damage in Irradiated MgAl2O4

Journal of the American Ceramic Society
  • S. Yoshioka, K. Tsuruta, T. Yamamoto, K. Yasuda, S. Matsumura, S. Takeharau, Y. Oba, N. Ishikawa, E. Kobayashi, and K. Okudaira

103
8
開始ページ
4654
終了ページ
4663
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1111/jace.17101
出版者・発行元
WILEY

Damaged structures in the MgAl(2)O(4)spinel induced by swift heavy ions were investigated using the X-ray absorption near edge structure (XANES) and small angle X-ray scattering (SAXS). Increasing the fluence of 100 MeV Xe ions leads to increased SAXS intensity and XANES spectral changes on both Mg and AlK-edges. The damaged regions of ion tracks were observed by SAXS to be cylindrical in shape with a diameter of 5 nm. The theoretical XANES spectra indicated that the changes in the experimental spectra were due to the cationic disordering between tetrahedral and octahedral sites. This disordering caused an increase in the inversion degree of the cations. Furthermore, the quantitative analysis of the XANES spectra revealed the preferential occupation of cations at the octahedral sites at high fluence.

リンク情報
DOI
https://doi.org/10.1111/jace.17101
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000543493000063&DestApp=WOS_CPL
ID情報
  • DOI : 10.1111/jace.17101
  • ISSN : 0002-7820
  • eISSN : 1551-2916
  • Web of Science ID : WOS:000543493000063

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