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235 U < 20% U 3 O 8. Furnaces dry-calcine-sinter. Kernel. Ammonia Donor. 200 – 800 – 1600°C. Gelation. (1300-1500°C) Pyrocarbon,SiC Layers. Carbon for UCO. Cooling water. Coating tube. Temperature measurement port. Water-cooled container wall. Dissolution. Thermal conductor.
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235U< 20% U3O8 Furnaces dry-calcine-sinter Kernel Ammonia Donor 200 – 800 – 1600°C Gelation (1300-1500°C) Pyrocarbon,SiC Layers Carbon for UCO Cooling water Coating tube Temperature measurement port Water-cooled container wall Dissolution Thermal conductor Insulation Gas distributor Water-Wash Electrical cable Gas inlet tube Gel-Sphere TRISO Particle Furnaces carbonize - densify Blend 800 – 1800°C Compact “Fuel Stick” Press-Cure Graphite + Resin Block Fuel Element NGNP Fuel Manufacturing Steps Fluid-Bed Coater Title and Date