Local structure investigations of accumulated damage in irradiated MgAl $_{2}$ O $_{4}$

Yoshioka, Satoru*; Tsuruta, Konosuke*; Yamamoto, Tomokazu*; Yasuda, Kazuhiro*; Matsumura, Sho*; Sugiyama, Takeharu*; Oba, Yojiro ; Ishikawa, Norito ; Kobayashi, Eiichi*; Okudaira, Koji*

X-ray absorption near edge structure (XANES) and small-angle X-ray scattering (SAXS) reveal the damaged structures in MgAl $_{2}$ O $_{4}$ spinel induced by swift heavy ions. SAXS indicates the formation of ion tracks with cylindrical shape with a diameter of 5 nm. XANES indicates the cationic disordering between tetrahedral and octahedral sites by the irradiation. Quantitative analysis of XANES also reveals that cations preferably occupy the octahedral sites at high fluence.

Language	:	English
Journal	:	Journal of the American Ceramic Society
Volume	:	103
Number	:	8
Pages	:	p.4654 - 4663
Publication Year/Month	:	2020/08
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Paper URL	:	https://doi.org/10.1111/jace.17101
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Keywords	:	no keyword
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Registration No. : AA20190594
JAEA Abstracts No. : 48000805
Paper Submission No. : 23082

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Local structure investigations of accumulated damage in irradiated MgAlO

Local structure investigations of accumulated damage in irradiated MgAl $_{2}$ O $_{4}$