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Home / Publications / Journals / Nuclear Science and Engineering / Volume 193 / Number 11

Scoping Studies of Dopants for Stabilization of Uranium Nitride Fuel

Klara Insulander Björk, Aneta Herman, Marcus Hedberg, Christian Ekberg

Nuclear Science and Engineering / Volume 193 / Number 11 / November 2019 / Pages 1255-1264

Technical Paper /

Received:February 6, 2019
Accepted:April 29, 2019
Published:October 25, 2019

Uranium nitride (UN) is considered as nuclear reactor fuel because of, among other reasons, its high uranium density and its high thermal conductivity. Its main drawback is that it relatively easily dissolves in hot water, which is particularly problematic when it is used in water-cooled reactors. One possible remedy to this is to add some corrosion inhibitor as dopant to the UN matrix. A number of dopants have been identified that have the potential to inhibit the dissolution process, and their respective merits have been investigated both by neutronic simulations and dissolution experiments. It is concluded that chromium is the most promising candidate.

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