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RISS 인기검색어
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- 저자 : Charollais, F. (검색결과 1 건)
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Kim, W.J.,Palancher, H.,Ryu, H.J.,Park, J.M.,Nam, J.M.,Bonnin, A.,Honkimaki, V.,Charollais, F.,Lemoine, P. Elsevier Sequoia 2014 Journal of Alloys and Compounds Vol.589 No.-
The coating of silicide or nitride layers on U-7wt%Mo or U-7wt%Mo-1wt%Ti particles has been proposed for the minimization of the interaction phase growth in U-Mo/Al dispersion fuel during irradiation. Out-of-pile annealing tests show reduced inter-diffusion by forming silicide or nitride protective layers on U-Mo and U-Mo-Ti particles. To characterize the constituent phases of the coated layers on U-Mo and U-Mo-Ti particles and the interaction phases of coated U-Mo and U-Mo-Ti particle dispersed Al matrix fuel, synchrotron X-ray diffraction experiments have been performed. It was identified that silicide coating layers consisted mainly of U<SUB>3</SUB>Si<SUB>5</SUB> and U<SUB>4</SUB>Mo(Mo<SUB>x</SUB>Si<SUB>1-x</SUB>)Si<SUB>2</SUB>, and nitride coating layers were composed of mainly UN and U<SUB>4</SUB>N<SUB>7</SUB>. The interaction phases obtained after annealing of coated U-Mo and U-Mo-Ti particle dispersion samples were identical to those found in U-Mo/Al-Si and U-Mo/Al systems. Nitride-coated particles showed less interaction formation than silicide-coated particles after annealing at 580<SUP>o</SUP>C for 1h owing to the higher susceptibility to breakage of the silicide coating layers during hot extrusion.
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