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光造形法および材料押出法による核燃料製造技術の開発

Development of nuclear fuel fabrication technology using stereolithography and material extrusion

瀬川 智臣 ; 渡部 雅  ; 川口 浩一  ; 石井 克典 ; 加藤 正人   

Segawa, Tomoomi; Watanabe, Masashi; Kawaguchi, Koichi; Ishii, Katsunori; Kato, Masato

革新的な核燃料製造技術として、光造形法による核燃料製造技術の開発を進めており、本研究では、光造形法および材料押出法による模擬物質を用いた積層造形実験を実施し、当該技術の核燃料製造プロセスへの適用性を評価した。光造形法および材料押出法のいずれの積層造形技術においても造形体を作製可能であり、核燃料製造プロセスへの適用可能性を示唆する結果が得られた。

As an innovative nuclear fuel fabrication technology, a nuclear fuel fabrication technology using a stereolithography method has been developed. In this study, additive manufacturing experiments were performed using simulated materials by the stereolithography method and the material extrusion method, and the applicability of the technologies to the nuclear fuel fabrication process was evaluated. The experimental results showed that both the stereolithography method and the material extrusion method were capable of fabricating green pellets, and the results suggest the possibility of application to the nuclear fuel fabrication process.

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