| アイテムタイプ |
学術雑誌論文 = Journal Article(1) |
| 公開日 |
2023-08-09 |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| タイトル |
|
|
タイトル |
Anomalous structural phase transformation in swift heavy ion-irradiated δ-Sc4Hf3O12 |
|
言語 |
en |
| その他のタイトル |
|
|
その他のタイトル |
Anomalous structural phase transformation in swift heavy ion-irradiated δ-Sc<inf>4</inf>Hf<inf>3</inf>O<inf>12</inf> |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 著者 |
Iwasaki, Masanari
Kanazawa, Yusuke
Manago, Daiki
Patel, Maulik K.
Baldinozzi, Gianguido
Sickafus, Kurt E.
石丸, 学
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Swift heavy ion irradiation was carried out to examine the ionization effects on structural changes of δ-Sc4Hf3O12 in which oxygen vacancies are regularly arranged. The specimens were irradiated at room temperature with 92 MeV xenon ions to fluences ranging from 3 × 1012 to 1 × 1014/cm2 and characterized by grazing (glancing) incidence x-ray diffraction, transmission electron microscopy, and scanning transmission electron microscopy. It was found that the pristine long-range ordered rhombohedral δ-phase undergoes a reconstructive transformation toward a long-range disordered cubic oxygen-deficient fluorite phase promoted by ionization effects. In addition, an ordered phase with a short-range structure different from the δ-type was formed in a layer going from the surface to a depth of ∼4.5 μm in the specimen irradiated to a fluence of 1 × 1014/cm2. It was found that the ordered phase is formed from the disordered cubic fluorite phase. This structural change is anomalous, because it is the opposite process of the usual irradiation-induced structural change, the order-to-disorder phase transformation. Electron diffraction experiments revealed that short-range ordered regions in this layer possess an oxygen-excess bixbyite organization (C-type heavy rare-earth oxides) with randomly filled anion vacant sites to account for the different stoichiometry and a long-range average oxygen-deficient fluorite phase. |
| 書誌情報 |
en : Journal of Applied Physics
巻 132,
号 7,
p. 75901,
発行日 2022-08-15
|
| 出版社 |
|
|
出版者 |
AIP Publishing |
| DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1063/5.0098518 |
| NCID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00693547 |
| ISSN |
|
|
収録物識別子タイプ |
PISSN |
|
収録物識別子 |
0021-8979 |
| ISSN |
|
|
収録物識別子タイプ |
EISSN |
|
収録物識別子 |
1089-7550 |
| 著作権関連情報 |
|
|
権利情報 |
Copyright (c) 2022 Author(s). Published under an exclusive license by AIP Publishing. |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Phase transitions, Superlattices |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Crystallographic defects |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Radiation damage |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Transmission electron microscopy |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
X-ray diffraction |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Ceramics |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Electronic excitation |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 査読の有無 |
|
|
値 |
yes |
| 研究者情報 |
|
|
URL |
https://hyokadb02.jimu.kyutech.ac.jp/html/100000642_ja.html |
2022_JAP132_075901.pdf (4.1 MB)
