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Article | REF: BN3620 V1

Design and fabrication of uranium-based fuels

Authors: Yannick GUÉRIN, Jean HENCKES

Publication date: July 10, 2008

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4. PWR fuel fabrication

4.1 Enriched UO2 powder

Uranium is generally made available to the manufacturer by the electricity customer; it arrives in the form of enriched hexafluoride (UF 6 ), in cylindrical containers containing around 2.2 tonnes of UF 6 .

To go from hexafluoride (solid up to around 60°C) to uranium oxide powder (UO 2 ) two routes are possible, the chemical route and the so-called dry route, with several variants for each.

• ADU process (ammonium diuranate)

UF 6  + 2H ...

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