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

被引：0

作者：

Matsumura, S ^{[1
]}

Shimada, M ^{[1
]}

Yasuda, K ^{[1
]}

Kinoshita, C ^{[1
]}

机构：

[1] Kyushu Univ, Dept Appl Phys & Nucl Engn, Fukuoka 8128581, Japan

来源：

RADIATION EFFECTS AND ION-BEAM PROCESSING OF MATERIALS | 2004年 / 792卷

关键词：

D O I：

暂无

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

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(.)nAl(2)O(3) spinel compounds irradiated with 1 MeV Ne+ ions and 200 MeV Xe14+ ions. The results successfully show the disordering behavior in MgO(.)nAl(2)O(3) as a function of composition and irradiation condition. It has been revealed by HARECXS that I 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.

引用

页码：131 / 142

页数：12

共 18 条

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