2011 Fiscal Year Final Research Report
Structure and dynamic behavior of small defects in metals
| Project/Area Number |
21560686
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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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 | Shimane University (2011)
Osaka University (2009-2010) |
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Principal Investigator |
ARAKAWA Kazuto 島根大学, 総合理工学部, 准教授 (30294367)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 格子欠陥 / 転位 / 点欠陥 / 電子顕微鏡 / 照射損傷 |
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| Research Abstract |
For the precise prediction of the life time of materials for nuclear-fission and fusion systems and the development of new materials for them, it is necessary to understand elementary processes of degradation of materials upon irradiation. In the present study, in order to obtain new knowledges on dynamic behaviors of small defects in metals produced upon energetic particle irradiation, by using in-situ transmission electron microscopy(TEM), we examined(1) one-dimensional migration process of dislocation loops,(2) collision process of dislocation loops, and(3) migration activation energy of self-interstitial atoms.
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