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Characterization of relocated solidified eutectic melt of B$$_{4}$$C-stainless steel composite under severe reactor conditions

過酷な原子炉状態におけるB$$_{4}$$Cとステンレス鋼のコンポジットの再配置された共晶反応メルトの固化物の分析

Ahmed, Z.*; Kumar, R.*; 横山 諒*; 岡本 孝司*; Pellegrini, M.*; 山野 秀将   

Ahmed, Z.*; Kumar, R.*; Yokoyama, Ryo*; Okamoto, Koji*; Pellegrini, M.*; Yamano, Hidemasa

Scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS) and X-ray photoelectron spectroscopy (XPS) confirmed the formation of metal carbides and the presence of boron in the eutectic melt. Characterizations results tell that not only boron, but carbon too diffuses in the eutectic melt which is a concern of recriticality. The current findings confirm the relocation of the B$$_{4}$$C-SS eutectic mixture with diffusion and precipitation of both boron and carbon, conditions likely to occur under extreme reactor conditions.

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