真空熱天秤法による低放射化フェライト鋼F82Hの水素透過測定

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Author: 吉田肇ほか

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Publication date: 2005-03

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Note (General)：: Hydrogen permeation fluxes of the reduced activation ferritic steel F82H were quantitatively measured by a newly proposed method, vacuum thermo-balanc...

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Summary, etc.：: Hydrogen permeation fluxes of the reduced activation ferritic steel F82H were quantitatively measured by a newly proposed method, vacuum thermo-balanc...

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Material Type: 文書・図像類
Title: 真空熱天秤法による低放射化フェライト鋼F82Hの水素透過測定
Author/Editor: 吉田肇
古作泰雄
榎枝幹男
阿部哲也
秋場真人
Author Heading: 吉田肇
古作泰雄
榎枝幹男
阿部哲也
秋場真人
Publication Date: 2005-03
Publication Date (W3CDTF): 2005-03
Alternative Title: Hydrogen permeation measurement of the reduced activation ferritic steel F82H by the vacuum thermo-balance method
Periodical title: JAERI-Research 2005-003
Text Language Code: eng
Target Audience: 一般
Note (General): Hydrogen permeation fluxes of the reduced activation ferritic steel F82H were quantitatively measured by a newly proposed method, vacuum thermo-balance method, for a precise estimation of tritium leakage in a fusion reactor. We prepared sample capsules made of F82H, which enclosed hydrogen gas. The hydrogen in the capsules permeated through the capsule wall, and subsequently desorbed from the capsule surface during isothermal heating. The vacuum thermo-balance method allows simultaneous measurement of the hydrogen permeation flux by two independent methods, namely, the net weight reduction of the sample capsule and exhaust gas analysis. Thus the simultaneous measurements by two independent methods increase the reliability of the permeability measurement. The ratio of the hydrogen permeation fluxes obtained by the net weight reduction to that measured by the exhaust gas analysis was in the range from 1/4 to 1/1 in this experiment. It has been demonstrated that the vacuum thermo-balance method is effective for the measurement of hydrogen permeation rate of F82H.
核融合炉におけるトリチウム漏洩量見積りの高精度化に資するため、低放射化フェライト鋼の水素透過速度を真空熱天秤法で測定した。本測定法では、水素ガスを封入した低放射化フェライト鋼F82H製の試料カプセルを用意し、試料カプセルを真空中で等温加熱して、試料カプセルを透過しカプセル表面から脱離する水素を以下の2つの独立した方法で測定する。すなわち、試料カプセルの正味の重量減少量と、試料カプセルからの水素脱離による排気ガス分析である。このような手法で測定の信頼性を増すことが可能である。本実験条件で、正味の重量減少量から求めた水素透過速度と排気ガス分析から求めた値の比は、1/4から1/1であった。本実験を通して、真空熱天秤法がF82Hの水素透過速度を評価するために有効な手段であることが示された。
Source: /JAERI-Research-2005-003.pdf （fulltext）
https://jopss.jaea.go.jp/pdfdata/JAERI-Research-2005-003.pdf
Access Restrictions: 限定公開
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): 日本原子力研究開発機構 : JOPSS:JAEA Originated Papers Searching System