Fabrication of U-Pu-Zr Metallic Fuel Elements for the Irradiation Test at Experimental Fast Test Reactor Joyo

A high-purity Ar gas atmosphere glove box accommodating injection casting and sodium-bonding apparatuses was newly installed in the Plutonium Fuel Research Facility of Oarai Research and Development Center, Japan Atomic Energy Agency, in which several nitride and carbide fuel pins were fabricated for irradiation tests. The experiences led to the establishment of the technological basis of the fabrication of U Pu Zr alloy fuel pins for theˆrst time in Japan. After the injection casting of the U Pu Zr alloy, the metallic fuel pins were fabricated by welding upper and lower end plugs with cladding tubes of ferritic-martensitic steel. Subsequent to the sodium bonding forˆlling the annular gap region between the U Pu Zr alloy and the cladding tube with the melted sodium, the fuel pins for irradiation tests are inspected. This paper shows the apparatuses and the technological basis for the fabrication of U Pu Zr alloy fuel pins for the irradiation test planned at the experimental fast test reactor Joyo.

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Fabrication of U-Pu-Zr Metallic Fuel Elements for the Irradiation Test at Experimental Fast Test Reactor Joyo

Cited by 3 publications

References 20 publications

High-temperature distillation and consolidation of U–Zr cathode product from molten salt electrorefining of simulated metallic fuel

High-temperature distillation and consolidation of U–Zr cathode product from molten salt electrorefining of simulated metallic fuel

Thermal conductivity of U–20 wt.%Pu–2 wt.%Am–10 wt.%Zr alloy

Establishment of Technological Basis for Fabrication of U-Pu-Zr Ternary Alloy Fuel Pins for Irradiation Tests in Japan

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