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http://dx.doi.org/10.5516/NET.2011.43.2.159

THE EFFECT OF SI-RICH LAYER COATING ON U-MO VS. AL INTERDIFFUSION  

Ryu, Ho-Jin (Research Reactor Fuel Development Division, Korea Atomic Energy Research Institute)
Park, Jae-Soon (Research Reactor Fuel Development Division, Korea Atomic Energy Research Institute)
Park, Jong-Man (Research Reactor Fuel Development Division, Korea Atomic Energy Research Institute)
Kim, Chang-Kyu (Research Reactor Fuel Development Division, Korea Atomic Energy Research Institute)
Publication Information
Nuclear Engineering and Technology / v.43, no.2, 2011 , pp. 159-166 More about this Journal
Abstract
Si-rich-layer-coated U-7 wt%Mo plates were prepared in order to evaluate the diffusion barrier performance of the Si-rich layer in U-Mo vs. Al interdiffusion. Pure Si powder was used for coating the U-Mo plates by annealing at $900^{\circ}C$ for 1 h under vacuum of approximately 1 Pa. Si-rich layers containing more than 60 at% of Si were formed on U-7 wt%Mo plates. Diffusion couple tests were conducted in a muffle furnace at $560-600^{\circ}C$ under vacuum using Si-rich-layer-coated U-Mo plates and pure Al plates. Diffusion couple tests using uncoated U-Mo plates and Al-(0, 2 or 5 wt%)Si plates were also conducted for comparison. Si-rich-layer coatings were more effective in suppressing the interaction during diffusion couple tests between coated U-Mo plate and Al, when compared with U-Mo vs. Al-Si diffusion couples, since only small amounts of Al in the coating could be found after the diffusion couple tests. Si-rich-layer-coated U-7wt%Mo particles were also prepared using the same technique for U-7 wt%Mo plates to observe the microsturctures of the coated particles.
Keywords
Dispersion Fuel; Interdiffusion; Diffusion Couple Test; Diffusion Barrier;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By Web Of Science : 1  (Related Records In Web of Science)
Times Cited By SCOPUS : 2
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