Induced nuclear reactions: processes – systems – and elements – Fuel component structure – Encased with nonfuel component
Patent
1983-12-16
1986-01-28
Walsh, Donald P.
Induced nuclear reactions: processes, systems, and elements
Fuel component structure
Encased with nonfuel component
376414, 376416, 376418, G21C 300
Patent
active
045670170
ABSTRACT:
An improved fuel pin cladding, particularly adapted for use in breeder reactors, consisting of composite tubing with austenitic steel on the outer portion of the thickness of the tube wall and with nickel and/or ferritic material on the inner portion of the thickness of the tube wall. The nickel forms a sacrificial barrier as it reacts with certain fission products thereby reducing fission product activity at the austenitic steel interface. The ferritic material forms a preventive barrier for the austenitic steel as it is immune to liquid metal embrittlement. The improved cladding permits the use of high density fuel which in turn leads to a better breeding ratio in breeder reactors, and will increase the threshold at which failure occurs during temperature transients.
REFERENCES:
patent: 4229260 (1980-10-01), Johnson
Adamson Martyn G.
Vaidyanathan Swaminathan
Carnahan L. E.
Gaither Roger S.
Hightower Judson R.
The United States of America as represented by the United States
Walsh Donald P.
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