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ナトリウム冷却高速炉の炉心損傷事故時の制御棒材の共晶溶融挙動に関する研究,7; 10mass%B$$_{4}$$C-SS共晶溶融物の密度および表面張力測定

Study on eutectic melting behavior of control rod materials in core disruptive accidents of sodium-cooled fast reactors, 7; Density and surface tension of 10mass%B$$_{4}$$C-SS eutectic molten materials

福山 博之*; 東 英生*; 山野 秀将  

Fukuyama, Hiroyuki*; Higashi, Hideo*; Yamano, Hidemasa

ナトリウム冷却高速炉の炉心損傷事故における制御棒材(炭化ホウ素: B$$_{4}$$C)と原子炉構造材(ステンレス鋼: SUS316L (SS))の共晶反応挙動を模擬するのに必要な熱物性モデル構築のため、超高温熱物性計測システム(PROSPECT)により、系統的にB$$_{4}$$C-SS系融体の熱物性計測を行っている。平成30年度は10mass%B$$_{4}$$C-SS系融体の密度および表面張力の測定を行った結果について報告する。

To develop thermophysical property model to simulate eutectic reaction behavior of B$$_{4}$$C as control rod material and stainless steel: SUS316L (SS) in core disruptive accident of sodium-cooled fast reactor, thermophysical property measurement of B$$_{4}$$C-SS melt has been systematically conducted with very high temperature physical property measurement system (PROSPECT). This fiscal year's paper reports measurement results of density and surface tension of 10mass%B$$_{4}$$C-SS melt.

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