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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Fusion Science and Technology
Latest News
NRC nominee Nieh commits to independent safety mission
During a Senate Environment and Public Works Committee hearing today, Ho Nieh, President Donald Trump’s nominee to serve as a commissioner at the Nuclear Regulatory Commission, was urged to maintain the agency’s independence regardless of political pressure from the Trump administration.
J. Northall, E. H. Norris, J. P. Knowles, J. R. Petherbridge
Fusion Science and Technology | Volume 80 | Number 3 | May 2024 | Pages 495-503
Research Article | doi.org/10.1080/15361055.2023.2223710
Articles are hosted by Taylor and Francis Online.
The reaction of uranium deuteride with nitrogen has been investigated at room temperature followed by a thermal ramp to a furnace temperature of 230°C. This work utilized about 100 g of uranium deuteride that underwent seven absorption/desorption cycles with deuterium to provide a higher surface area on which to observe the reaction. Reactions were performed by flowing a mixture of N2 and 3He (95:5) through the UD3 sample. The reaction was monitored via mass spectrometry and pressure measurement. Evidence of partial consumption of N2 to form D2 and U2N3 was indicated at room temperature with the reaction limited to the sample surface. Increasing the sample furnace temperature to 230°C resulted in the full consumption of N2 and the associated generation of lower stoichiometry nitrides and D2. These results highlight that the reaction between nitrogen and uranium deuteride can occur at room temperature and that uranium beds are susceptible to a small loss in capacity when exposed to nitrogen.