| Item type |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2023-03-30 |
| タイトル |
|
|
タイトル |
金属水素化物 PdDx の超伝導相における格子欠陥の役割 |
| タイトル |
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|
タイトル |
Role of lattice defects on superconducting phase in PdDx system |
|
言語 |
en |
| 言語 |
|
|
言語 |
jpn |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
palladium, hydrogen, lattice defect, Cottrell cloud, spinodal decomposition |
| 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 |
departmental bulletin paper |
| 著者 |
井下, 聖賀
安塚, 周磨
Seiga, INOSHITA
Syuma, YASUZUKA
|
| 抄録 |
|
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内容記述タイプ |
Abstract |
|
内容記述 |
The interactions of hydrogen with the lattice defects in palladium have attracted much attention because macroscopic properties such as hydrogen storage and metal embrittlement are markedly affected by H （D）-defect interactions. In this paper we report the inhomogeneous superconducting state in PdDx and the hydrogen absorption/desorption processes on annealed and unannealed Pd wires. Deuterium was loaded simultaneously with unannealed Pd wire in the “as received” condition and annealed Pd wire by electrolysis in 0.1M LiOD in D2O at room temperature. A superconducting （SC） state, however, is induced only for the unannealed Pd wire and is robust against time. Since the easier insertion and stronger trapping of D atoms is realized at the vacancies and dislocation cores, an SC region （relatively D-rich region） may be formed around the lattice defects and a nonSC region may be formed around the regions away from the dislocation cores and vacancies. In addition, we find that the reduction of x estimated from Tc is much smaller than reduction of x estimated from Ta, indicating the slower escape of D atoms in the SC region than in the nonSC region. This result suggests occurrence of the SC state is associated with the formation of a dense Cottrell cloud of D atoms at around lattice defects. |
| 書誌情報 |
広島工業大学紀要. 研究編
巻 55,
p. 1-5,
発行日 2021-02
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| 出版者 |
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出版者 |
広島工業大学 |
| ISSN |
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収録物識別子タイプ |
ISSN |
|
収録物識別子 |
13469975 |
| 書誌レコードID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA11599110 |
| フォーマット |
|
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内容記述タイプ |
Other |
|
内容記述 |
application/pdf |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
research55_001-005.pdf (2.2 MB)
