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Journal Articles

Thermophysical properties of austenitic stainless steel containing boron carbide in a solid state

Takai, Toshihide; Furukawa, Tomohiro; Yamano, Hidemasa

Mechanical Engineering Journal (Internet), 8(4), p.20-00540_1 - 20-00540_11, 2021/08

In a core disruptive accident scenario, boron carbide, which is used as a control rod material, may melt below the melting temperature of stainless steel owing to the eutectic reaction with them. The eutectic mixture produced is assumed to extensively relocate in the degraded core, and this behavior plays an important role in significantly reducing the neutronic reactivity. However, these behaviors have never been simulated in previous severe accident analysis. To contribute to the improvement of the core disruptive accident analysis code, the thermophysical properties of the eutectic mixture in the solid state were measured, and regression equations that show the temperature (and boron carbide concentration) dependence are created.

Journal Articles

Melting temperature of high burn-up UO$$_{2}$$ pellet

Harada, Katsuya; Nakata, Masahito; Yasuda, Ryo; Nishino, Yasuharu; Amano, Hidetoshi

HPR-356, 11 Pages, 2001/00

no abstracts in English

Journal Articles

A Method for measuring the thermal diffusivity of molten salts by stepwise heating

; *; *; Furukawa, Kazuo

J.Phys.,E, 8(6), p.461 - 464, 1975/06

no abstracts in English

Oral presentation

Property measurement of CaF$$_{2}$$

Tsuchimochi, Ryota; Kato, Masato; Hiroka, Shun; Matsumoto, Taku; White, J.*; McClellan, K.*

no journal, , 

High temperature XRD, Thermal expansion measurement, sound speeds measurement and DSC measurement of CaF$$_{2}$$ were carried out. We confirmed that the specific heat of CaF$$_{2}$$ explicity shows the effect of Frenkel defect formation on top of the heat capacity at constant volume and dilatational term. The analysis of the specific heat will be discussed together with the measured data.

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