The very high temperature reactor (VHTR) materials R&D started as an objective of the development of key technologies for a nuclear hydrogen production funded by the Korea government in 2006. We are performing materials R&D for 5 components: a reactor pressure vessel (RPV), a reactor/process intermediate heat exchanger (IHX) and hot gas duct, a control rods component, a reflector and support structures in the core region and reactor materials for the sulfur-iodine (SI) process. The scopes of our works are focused on a material screening/selection and qualification, codifications of a high temperature structural design to a very high temperature region, and to support the licensing of a system design, material characterizations and database establishments. Current target materials are modified 9Cr-1Mo, alloy 617, graphite, ceramic fiber reinforced composite, Fe-Si and SiC.
Development of Materials for a High Temperature Gas Cooled Reactor in Korea
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Park, JY, Kim, DW, Kim, DJ, Kim, ES, Kim, HP, Kim, SH, Kim, W, Kim, WG, Ryu, WS, & Kim, YD. "Development of Materials for a High Temperature Gas Cooled Reactor in Korea." Proceedings of the Fourth International Topical Meeting on High Temperature Reactor Technology. Fourth International Topical Meeting on High Temperature Reactor Technology, Volume 2. Washington, DC, USA. September 28–October 1, 2008. pp. 43-47. ASME. https://doi.org/10.1115/HTR2008-58149
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