Nuclear fuel element

Details Nuclear fuel element Nuclear fuel element

1979-02-23

1983-02-08

Cangialosi, S. A.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Encased with nonfuel component

G21C 320

Patent

active

043728170

ABSTRACT:
A nuclear fuel element for use in the core of a nuclear reactor is disclosed and has a composite cladding having a substrate and a metal barrier metallurgically bonded on the inside surface of the substrate so that the metal barrier forms a shield between the substrate and the nuclear fuel material held within the cladding. The metal barrier forms about 1 to about 30 percent of the thickness of the cladding and is comprised of a low neutron absorption metal of substantially pure zirconium. The metal barrier serves as a preferential reaction site for gaseous impurities and fission products and protects the substrate from contact and reaction with such impurities and fission products. The substrate of the composite cladding is selected from conventional cladding materials and preferably is a zirconium alloy. Methods of manufacturing the composite cladding are also disclosed.

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Elements of Physical Metallurgy, 2nd Ed., Addison-Wesley Pub. Co., A. Guy (1/25/68) pp. 194-195.

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