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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Powering the future: How the DOE is fueling nuclear fuel cycle research and development
As global interest in nuclear energy surges, the United States must remain at the forefront of research and development to ensure national energy security, advance nuclear technologies, and promote international cooperation on safety and nonproliferation. A crucial step in achieving this is analyzing how funding and resources are allocated to better understand how to direct future research and development. The Department of Energy has spearheaded this effort by funding hundreds of research projects across the country through the Nuclear Energy University Program (NEUP). This initiative has empowered dozens of universities to collaborate toward a nuclear-friendly future.
E. A. Fischer
Nuclear Science and Engineering | Volume 101 | Number 2 | February 1989 | Pages 97-116
Technical Paper | doi.org/10.13182/NSE89-A23600
Articles are hosted by Taylor and Francis Online.
New experimental results on the vapor pressure of UO2 up to extremely high temperatures have recently become available. These vapor pressure data, obtained by advanced experimental techniques, are lower than the ones used thus far at Kernforschungszentrum Karlsruhe. It was, therefore, appropriate to carry out a completely new evaluation of the equation of state (EOS) of UO2- Eyring’s significant structures theory, which was extended to the case of nonstoichiometric urania, was applied for this work. The extended theory is described in some detail. By a suitable choice of the model parameters, good agreement of the evaluated EOS with recent experimental data was obtained, which is additional evidence of the reliability and consistency of the recent data. The extrapolation predicts a critical temperature of 10 600 K, which is higher than earlier predictions.