2013 Fiscal Year Final Research Report
Characteristic behavior of oxygen ion Frenkel pairs in fluorite structure oxide
| Project/Area Number |
23560789
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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
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| Research Institution | Junshin Gakuen University (2012-2013)
Kyushu University (2011) |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
MATSUMURA Syo 九州大学, 大学院工学研究院, 教授 (60150520)
YASUDA Kazuhiro 九州大学, 大学院工学研究院, 准教授 (80253491)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 分子動力学 / 格子欠陥 / イオン結晶 / セラミックス / 原子力エネルギー |
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| Research Abstract |
The behaviors of oxygen ion and cerium ion Frenkel Pairs in cerium dioxide (CeO2) were investigated using molecular dynamics simulations to clarify the behavior of defects in CeO2, in connection to their applications as surrogate materials for uranium oxides and electrolyte of solid oxide fuel cells.
The results show that (1) a single oxygen ion and cerium ion vacancy or interstitial tends to move to <100> direction and (2) plural oxygen interstitials aggregate on (111) plane between oxygen layers.
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Research Products
(4 results)
