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金属NaとNaOHとの反応における生成物の組成変化に基づく反応過程の評価

Evaluation of reaction processes based on the composition of products in the reaction of metallic Na with NaOH

土井 大輔  

Doi, Daisuke

ナトリウム(Na)冷却高速炉での水素の生成・移行挙動を評価する上では、Na化合物(NaH、NaOH)に由来した水素の熱的挙動及び反応過程の解明が重要である。本発表では、金属NaとNaOHとの混合粉末試料を異なる温度で加熱した後に室温X線回折で化学組成を特定するとともに、化学平衡計算結果と比較して反応過程を評価した結果について報告する。

The thermal behavior and reaction processes of hydrogen release reactions from Na compounds, such as NaH and NaOH, are essential in hydrogen formation and transport behavior in sodium-cooled fast reactors. In this report, the reaction processes were evaluated by comparing the chemical composition of mixed powder samples of metallic Na and NaOH heated at different temperatures with the results of chemical equilibrium calculations.

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