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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,15; 7mass%B$$_{4}$$C-SS共晶溶融物の粘度測定

Study on eutectic melting behavior of control rod materials in core disruptive accidents of sodium-cooled fast reactors, 15; Viscosity measurement of 7mass%B$$_{4}$$C eutectic molten material

西 剛史*; 小久保 宏紀*; 高塚 祐理子*; 太田 弘道*; 山野 秀将   

Nishi, Tsuyoshi*; Kokubo, Hiroki*; Takatsuka, Yuriko*; Ota, Hiromichi*; Yamano, Hidemasa

炭化ホウ素(B$$_{4}$$C)とステンレス鋼(SS)の溶融混合物の粘度データはシビアアクシデント解析に必要不可欠である。本研究では、平成29, 30年度に報告した5mass%, 10mass% B$$_{4}$$C-SS共晶溶融物の粘度測定に続き、7mass% B$$_{4}$$C-SS共晶溶融物の粘度測定を実施し、データの検証を実施したので報告する。

The viscosity of the eutectic compound of boron carbide (B$$_{4}$$C) and stainless steel (SS) is necessary data for analyzing a severe accident. This paper describes the viscosity measurement of the eutectic compound of 7mass% B$$_{4}$$C-SS and its data verification, following the measurement of 5mass% and 10mass% B$$_{4}$$C-SS reported in JFY2017 and JFY2018.

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