Elliptical metal fuel/cladding barrier and related method for im

Details Elliptical metal fuel/cladding barrier and related method for im Elliptical metal fuel/cladding barrier and related method for im

1992-10-28

1994-12-27

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Encased with nonfuel component

376417, G21C 300

Patent

active

053772466

ABSTRACT:
A barrier tube of non-circular cross section is arranged in the space between the stainless steel cladding and metal fuel slugs of a liquid metal reactor. The non-circular shape of this barrier design promotes improved thermal bonding in both the cladding/barrier and barrier/fuel interface regions. The non-circular barrier results in three areas with liquid metal thermal bond gaps having an angle which approaches that for a metal fuel pin without a barrier. Thus, the degree of circumferential unbonding will be less than that which results in localized fuel melting during radiation.

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Pitner, A. L. and Dittmer, J. O., "FFTF Metal Fuel Pin Bond Verification," Trans. Am. Nucl. Soc., vol. 59, pp. 144-145 (1989).

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