Atomic-scale study of lattice defect formation due to electronic excitation in spinel-type oxide
| Project/Area Number |
18206068
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Physical properties of metals
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| Research Institution | Kyushu University |
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Principal Investigator |
MATSUMURA Syo Kyushu University, 工学研究院, 教授 (60150520)
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| Co-Investigator(Kenkyū-buntansha) |
安田 和弘 九州大学, 工学研究院, 准教授 (80253491)
椎山 謙一 九州大学, 工学研究院, 助教 (30243900)
波多 聡 九州大学, 総合理工学研究院, 准教授 (60264107)
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| Co-Investigator(Renkei-kenkyūsha) |
YASUDA Kazuhiro 九州大学, 大学院・工学研究院, 准教授 (80253491)
SHIIYAMA Kenichi 九州大学, 大学院・工学研究院, 助教 (30243900)
HATA Satoshi 九州大学, 大学院・総合理工学研究院, 准教授 (60264107)
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| Project Period (FY) |
2006 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥48,360,000 (Direct Cost: ¥37,200,000、Indirect Cost: ¥11,160,000)
Fiscal Year 2009: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2008: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2007: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2006: ¥33,410,000 (Direct Cost: ¥25,700,000、Indirect Cost: ¥7,710,000)
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| Keywords | イオン照射 / イオントラック / 高分解能電子顕微鏡 / 電子チャンネリングX線分光 / 分子動力学計算 / 規則-不規則相転移 / 格子欠陥形成エネルギー / 格子欠陥移動エネルギー / スピネル化合物 / 電子チャンネリング分光 / 規則-不規則転移 / 酸化セリウム / 球面収差補正 / 格子欠陥移動工ネルギー |
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| Research Abstract |
Structural disordering in magnesium aluminate spinel compounds MgAl_2O_4 induced by strong electronic excitation due to irradiation with swift heavy ions were investigated by means of advanced transmission electron microscopy and molecular dynamics simulations, in connection to their application as inert matrix material in nuclear engineering. The results have clearly revealed the atomistic structure inside ion-tracks as well as the induced disordering behavior quantitatively. The atomistic mechanism for transformation into defective rock-salt structure has been also demonstrated.
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Report
(6 results)
Research Products
(47 results)
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[Journal Article] Recovery and Restructuring induced by Fission Energy Ion in High Burnup Nuclear Fuel2009
Author(s)
M.Kinoshita, K.Yasunaga, T.Sonoda, A.Iwase, N.Ishikawa, M.Sataka, K.Yasuda, S.Matsumura, H.Y.Geng, T.Ichinomiya, Y.Chen, Y.Kaneta, M.Iwasawa, T.Ohnuma, Y.Nishiura, J.Nakamura, Hj Matzke
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Journal Title
Nuclear Instruments and Method in Physics Reserach B 267
Pages: 960-963
Related Report
Peer Reviewed
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[Presentation]2007
Author(s)
椎山 謙一, 山本 知一, 安田 和弘 松村 晶, A.Chartier, C.Meis
Organizer
日本原子力学会2007年秋の大会
Place of Presentation
北九州市
Related Report
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[Presentation]2007
Author(s)
A.Chartier, T.Yamamoto, K.Yasuda, C.Meis, K.Shiiyama, S.Matsumura
Organizer
2007 MRS Fall Meeting
Place of Presentation
Boston,USA
Related Report
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