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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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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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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Report
(4 results)
Research Products
(8 results)
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[Presentation] 酸化セリウム中のフレンケル対挙動2013
Author(s)
椎山 謙一, 高木 聖也, 安田 和弘, 松村 晶, Alain Chartier, Constantin Meis
Organizer
日本金属学会2013年秋期(第153回)講演大会
Place of Presentation
金沢大学角間キャンパス
Related Report
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