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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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Nuclear Science and Engineering
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Fusion Science and Technology
Latest News
NNSA awards BWXT $1.5B defense fuels contract
The Department of Energy’s National Nuclear Security Administration has awarded BWX Technologies a contract valued at $1.5 billion to build a Domestic Uranium Enrichment Centrifuge Experiment (DUECE) pilot plant in Tennessee in support of the administration’s efforts to build out a domestic supply of unobligated enriched uranium for defense-related nuclear fuel.
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.
