Rod for a fuel assembly of a nuclear reactor resisting corrosion

Details Rod for a fuel assembly of a nuclear reactor resisting corrosion Rod for a fuel assembly of a nuclear reactor resisting corrosion

1990-01-22

1991-06-11

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Encased with nonfuel component

G21C 306

Patent

active

050230484

ABSTRACT:
The fuel rod comprises a sheath having an inner tubular layer and an outer surface layer composed of zirconium alloys which differ from each other. The surface layer, whose thickness is between 10 to 25% of the total thickness of the wall of the sheath, is constituted by a zirconium-base alloy containing by weight 0.35 to 0.65% tin, 0.20 to 0.65% iron, 0.09 to 0.16% oxygen and niobium in a proportion of 0.35 to 0.65% or vanadium in a proportion of 0.25 to 0.35%. The inner layer may be constituted by an alloy such as Zircaloy 4 or a zirconium-niobium alloy.

REFERENCES:
patent: 4783311 (1988-11-01), Ferrari
"Performance and Testing of Refractory Alloy Clad Fuel Elements for Space Reactors", by D. S. Dutt et al.,-Los Alamos National Laboratory-U.S.A.

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