検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

Study on eutectic melting behavior of control rod materials in core disruptive accidents of sodium-cooled fast reactors, 2; Thermophysical properties of eutectic mixture containing of high concentration boron in a solid state

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,2; 高濃度ほう素含有共晶物の固相物性評価

高井 俊秀 ; 古川 智弘 ; 山野 秀将  

Takai, Toshihide; Furukawa, Tomohiro; Yamano, Hidemasa

Eutectic melting behavior between boron carbide (B$$_{4}$$C) as control rod material and stainless steel (SS) as structural material and subsequent relocation behavior plays an important role to achieve an in-vessel retention concept which ensures long-term coolability of degraded core under core disruptive accident, because these behaviors are expected to reduce the neutronic reactivity significantly. However, these behaviors have never been simulated in severe accident computer codes before. Since 2016, JAEA has been conducting a research project to develop physical models that describe these behaviors. For the physical models' development, it is necessary to obtain thermophysical properties of SS-B$$_{4}$$C eutectic mixture with various B$$_{4}$$C concentration and maintain them as a database. In this work, the density and specific heat of SS-17 mass%B$$_{4}$$C in a solid state are obtained and compared with these of stainless steel containing 0 and 5 mass%B$$_{4}$$C.

Access

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.