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Fusion Science and Technology
August 2026
Latest News
NRC issues draft EA/FONSI for Duane Arnold restart
Efforts by NextEra Energy to restart the Duane Arnold nuclear power plant as early as 2029 continue to move forward with the Nuclear Regulatory Commission's preliminary environmental assessment and determination that the restart would have no significant environmental impacts.
On Thursday, the NRC posted a draft environmental assessment and a finding of no significant impact for the Palo, Iowa, facility; the Federal Register notice was published on Monday. The Department of Energy’s Office of Energy Dominance Financing is a cooperating agency on the draft EA, as the DOE is considering providing financial assistance to the restart project.
Yusha Li, Qing Liu, Zongxing Gu, Xiaoxu Dong, Zeyu Gao, Yingchun Zhang
Fusion Science and Technology | Volume 81 | Number 7 | October 2025 | Pages 691-701
Research Article | doi.org/10.1080/15361055.2025.2493408
Articles are hosted by Taylor and Francis Online.
Tungsten (W) coatings on a Cu-Cr-Zr alloy surface were obtained by pulsed current electrodeposition from Na2WO4-WO3-NaCl molten salt at different temperatures and current densities in an air atmosphere. The microstructure of the coating was observed, and the coating density, porosity, and hardness were tested. The results revealed W coatings with a silver-white metallic luster electrodeposited on the surfaces of a Cu-Cr-Zr alloy substrate when the temperature decreased from 1173 to 1023 K. The grain size and thickness of the W coatings changed significantly with current density, but the density, porosity, and hardness of the coating were slightly influenced by current density. The addition of NaCl refined the size of the tungsten grains in the W coatings. Among them, the W coating sample electrodeposited under 1123 K and 30 mA/cm2 current density had the best performance, with a relative density of 96.95%, a porosity of 1.11%, and a hardness of 502.4 HV.
