水素吸蔵性金属中の格子欠陥に於ける重水素の凝縮性挙動に関する理論的研究

Material type: 博士論文

Author: 土屋, 賢一

Publisher: 岩手大学

Publication date: 2004

Material Format: Digital

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Name of awarding university/degree: 岩手大学,博士（工学）

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Note (General)：: It is well known that some metals can accumulate hydrogen or its isotope in high concentration. In this work, quantum states of hydrogen in metals are...

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Material Type: 博士論文
Title: 水素吸蔵性金属中の格子欠陥に於ける重水素の凝縮性挙動に関する理論的研究
Author/Editor: 土屋, 賢一
Author Heading: 土屋, 賢一
Publication, Distribution, etc.: 岩手大学
Publication Date: 2004
Publication Date (W3CDTF): 2004
Alternative Title: Theoretical Study on the Condensed States of Deuterons Trapped at Defects in Hydrogen-Storing Metals
Pages: 1-111
Degree grantor/type: 岩手大学
Date Granted: 2004-09-30
Dissertation Number: 乙第21号
Degree Type: 博士（工学）
Text Language Code: jpn
Target Audience: 一般
Note (General): It is well known that some metals can accumulate hydrogen or its isotope in high concentration. In this work, quantum states of hydrogen in metals are studied theoretically. Nonlinear screening efect is taken into account using density functional formalism. This efect has an important role in this problem because it cuts of the long tale of Coulomb interaction between hydrogen ions. As a calculated result, the minimum distance between two deuterons in Pd are 0.66Å, which is smaller than the value for the molecule 0.74Å. This suggests that d-d nuclear fusions may happenin Pd. However the distance 0.66Å is too large to penetrate the potential barrier by tunneling. The tendency of deuterons to clump as the Bose particle has more important role in this problem. The Bose-Einstein condensation(BEC) may induce nuclear reactions in solids. The equlvalent linear two-body method is used for the calculation and condensed states of deuterons in Pd are obtained. As a result, the critical temperature of BEC is about 150K for the case of trapped deuterons in vacancy cluster in Pd.
DOI: 10.15113/00010371
Format (IMT): application/pdf
Source: 本文/ comment：fulltext
https://iwate-u.repo.nii.ac.jp/record/10377/files/kou-21.pdf
Access Restrictions: インターネット公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 岩手大学 : 岩手大学リポジトリ