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Thermophysical properties of stainless steel containing 5mass%-B$$_{4}$$C in the solid phase

Takai, Toshihide; Furukawa, Tomohiro; Yamano, Hidemasa

This study describes estimation results of thermophysical properties of stainless steel containing 5mass% boron carbide (5mass%B$$_{4}$$C-SS) in the solid state. 5mass%B$$_{4}$$C-SS eutectic sample was synthesized using a hot press method. Homogeneity of the sample was evaluated by chemical composition analysis, metal structure observation, and micro X-ray diffraction (XRD). Specific gravity and specific heat were evaluated up to 1000$$^{circ}$$C. These measurements proved that the specific gravity in our sample was lowered and the temperature dependence of the specific gravity, along with the elevation of temperature, became gradual compared to that of grade type 316L stainless steel (SUS316L) used as a reactor material by addition of B$$_{4}$$C. The specific heat became slightly higher than that of SUS316L by addition of B$$_{4}$$C and showed similar temperature dependence up to 800$$^{circ}$$C.

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