Abstract
We have investigated the structure of ion tracks in magnesium aluminate spinel (MgAl2O4) and ceria (CeO2) irradiated with 200 MeV Xe ions. Transmission electron microscopy (TEM) and scanning transmission electron microscopy (STEM) techniques have shown that ion tracks in both materials retain crystallinity. The atomic density inside the core damage region of ion tracks is decreased to generate interstitial atoms at the peripheral region. Overlap of high-density electronic excitation at high fluence has revealed the development of dislocation structure in both MgAl 2O4 and ceria CeO2: the preferential occupation of cations in tetrahedral sites was found in MgAl2O4, and the formation of small sub-grains was observed in CeO2.
| Original language | English |
|---|---|
| Title of host publication | 11th International Topical Meeting on Nuclear Applications of Accelerators, AccApp 2013 |
| Publisher | Belgian Nuclear Research Center |
| Pages | 7-11 |
| Number of pages | 5 |
| ISBN (Print) | 9781629938288 |
| Publication status | Published - Jan 1 2013 |
| Event | 11th International Topical Meeting on Nuclear Applications of Accelerators, AccApp 2013 - Bruges, Belgium Duration: Aug 5 2013 → Aug 8 2013 |
Publication series
| Name | 11th International Topical Meeting on Nuclear Applications of Accelerators, AccApp 2013 |
|---|
Other
| Other | 11th International Topical Meeting on Nuclear Applications of Accelerators, AccApp 2013 |
|---|---|
| Country | Belgium |
| City | Bruges |
| Period | 8/5/13 → 8/8/13 |
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All Science Journal Classification (ASJC) codes
- Nuclear Energy and Engineering
Cite this
Atomic structure of ion tracks and microstructure evolution in oxides irradiated with swift heavy ions. / Yasuda, Kazuhiro; Yamamoto, T.; Takaki, S.; Matsumura, Syo; Ishikawa, N.
11th International Topical Meeting on Nuclear Applications of Accelerators, AccApp 2013. Belgian Nuclear Research Center, 2013. p. 7-11 (11th International Topical Meeting on Nuclear Applications of Accelerators, AccApp 2013).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Atomic structure of ion tracks and microstructure evolution in oxides irradiated with swift heavy ions
AU - Yasuda, Kazuhiro
AU - Yamamoto, T.
AU - Takaki, S.
AU - Matsumura, Syo
AU - Ishikawa, N.
PY - 2013/1/1
Y1 - 2013/1/1
N2 - We have investigated the structure of ion tracks in magnesium aluminate spinel (MgAl2O4) and ceria (CeO2) irradiated with 200 MeV Xe ions. Transmission electron microscopy (TEM) and scanning transmission electron microscopy (STEM) techniques have shown that ion tracks in both materials retain crystallinity. The atomic density inside the core damage region of ion tracks is decreased to generate interstitial atoms at the peripheral region. Overlap of high-density electronic excitation at high fluence has revealed the development of dislocation structure in both MgAl 2O4 and ceria CeO2: the preferential occupation of cations in tetrahedral sites was found in MgAl2O4, and the formation of small sub-grains was observed in CeO2.
AB - We have investigated the structure of ion tracks in magnesium aluminate spinel (MgAl2O4) and ceria (CeO2) irradiated with 200 MeV Xe ions. Transmission electron microscopy (TEM) and scanning transmission electron microscopy (STEM) techniques have shown that ion tracks in both materials retain crystallinity. The atomic density inside the core damage region of ion tracks is decreased to generate interstitial atoms at the peripheral region. Overlap of high-density electronic excitation at high fluence has revealed the development of dislocation structure in both MgAl 2O4 and ceria CeO2: the preferential occupation of cations in tetrahedral sites was found in MgAl2O4, and the formation of small sub-grains was observed in CeO2.
UR - http://www.scopus.com/inward/record.url?scp=84902264489&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84902264489&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84902264489
SN - 9781629938288
T3 - 11th International Topical Meeting on Nuclear Applications of Accelerators, AccApp 2013
SP - 7
EP - 11
BT - 11th International Topical Meeting on Nuclear Applications of Accelerators, AccApp 2013
PB - Belgian Nuclear Research Center
ER -