| Project/Area Number |
25420692
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Physical properties of metals/Metal-base materials
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| Research Institution | Kyushu University |
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Principal Investigator |
Yasuda Kazuhiro 九州大学, 工学(系)研究科(研究院), 准教授 (80253491)
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| Co-Investigator(Kenkyū-buntansha) |
SHIIYAMA KENICHI 純真学園大学, 保健医療学部, 准教授 (30243900)
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| Co-Investigator(Renkei-kenkyūsha) |
MATSUMURA SYO 九州大学, 工学研究院, 教授 (60150520)
YOSHIOKA SATORU 九州大学, 工学研究院, 助教 (50452818)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | 蛍石型酸化物 / 照射損傷 / 原子炉燃料 / 電子励起 / 転位ループ / 選択的はじき出し損傷 / 電子顕微鏡法 / イオントラック / 電子顕微鏡 / 核燃料 / 核変換処理材料 / 照射欠陥 |
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| Outline of Final Research Achievements |
It has been known in fuorite oxides, as expected to be the new generation nuclear fuel and/or transmutation target, that the preferential displacement damage will be induced in oxygen sublattice. The present study investigated the nucleation-and-growth process of radiation-induced defects and its accumulation process through advanced transmission electron microscopy. Main results are (1) an atomic scale clarification of the nucleation-and-growth of oxygen-type dislocation loops, (2) atomic structure of ion tracks, and its accumulation process, and (3) development of in situ cathololuminescence analysis in an HVEM and its application to oxides.
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