Nuclear fuel element having a metal liner and a diffusion barrie

Details Nuclear fuel element having a metal liner and a diffusion barrie Nuclear fuel element having a metal liner and a diffusion barrie

1974-11-11

1977-05-10

Bentley, Stephen C.

176 68, G21C 320

Patent

active

040226620

ABSTRACT:
An improved nuclear fuel element is disclosed for use in the core of nuclear reactors. The improved nuclear fuel element has a metal liner and a diffusion barrier disposed between the cladding and the nuclear fuel material. The diffusion barrier is in the form of a metal coating with the diffusion barrier being coated on the internal surface of the cladding in one embodiment and the diffusion barrier being coated on the outside surface of the metal liner in another embodiment. The diffusion barrier is a coating of chromium or a chromium alloy and serves to prevent any alloying or formation of low melting eutectic liquid phases between the metal liner and the cladding at elevated temperatures. The metal liner is selected from the group consisting of stainless steel, copper, copper alloys, nickel, and nickel alloys.

REFERENCES:
patent: 2928168 (1960-03-01), Gray
patent: 3088893 (1963-05-01), Spalaris
patent: 3184373 (1965-05-01), Blomeyer et al.
patent: 3291700 (1966-12-01), Brossa et al.
patent: 3427222 (1969-02-01), Biancheria et al.
patent: 3466226 (1969-09-01), Lass
patent: 3850584 (1974-11-01), Bohm et al.

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