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ANS to host webinar on clean electric grid on Wednesday
Join ANS for the panel discussion, What will a clean U.S. electric grid look like in 2035? at 1:30 p.m. (EDT) on Wednesday. Register now for the free virtual event.
Weiqian Zhuo, Yi Xie, Michael T. Benson, Qiufeng Yang, Robert D. Mariani, Jinsuo Zhang
Nuclear Science and Engineering | Volume 194 | Number 6 | June 2020 | Pages 462-476
Technical Paper | dx.doi.org/10.1080/00295639.2020.1713656
Articles are hosted by Taylor and Francis Online.
Alloying additions are introduced into U-Zr fuel in order to bind lanthanides (e.g., cerium) and prevent their migration to the fuel-cladding interface. Antimony (Sb) is being investigated as a candidate additive. The present study focuses on the diffusion couple behavior of U-10Zr (wt%) alloy with Sb against cladding (iron or HT9) at 640°C. The diffusion cross sections were analyzed using a scanning electron microscope and X-ray diffraction. Zr-rind was found at the interface of the fuel alloy, Sb was found to be bound in Sb-Zr precipitates or Sb-Ce precipitates, and no reaction was found between Sb precipitates and the cladding materials.