Chemical interactions of B(sub 4)C pellets with Zr1%Nb and stainless steels

摘要

Chemical interactions between B(sub 4)C absorber material and X18H10T stainless steel absorber cladding of WWER type nuclear reactor, together with those between B(sub 4)C and Zr1%Nb guide tube were investigated in the temperature range of 800-1200 and 1200-1600 deg C, respectively. After annealing, the specimens where exposed to metallograhical testing. The results show that the reaction obeys parabolic law, and the growth rate of the reaction layers can be described by an Arrhenius correlation. (author). 5 refs., 20 figs., 3 tabs. (Atomindex citation 28:026029)