Fuel pin cladding

Patent · Tue Dec 31 23:00:00 EST 1985

OSTI ID:865749

Vaidyanathan, Swaminathan ^[1]; Adamson, Martyn G ^[2]

---

1. San Jose, CA
2. Danville, CA

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.

• Research Organization: General Electric Co
• DOE Contract Number: AT03-76SF71031
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4567017
• OSTI ID: 865749
• Country of Publication: United States
• Language: English

Related Subjects

/376/976/
activity
adapted
austenitic
austenitic steel
barrier
breeder
breeder reactor
breeder reactors
breeding
cladding
composite
consisting
density
density fuel
embrittlement
failure
ferritic
ferritic material
fission
fission product
fission products
forms
fuel
immune
improved
improved fuel
increase
inner
inner portion
interface
leads
liquid
liquid metal
material
material forms
metal
metal embrittlement
nickel
occurs
outer
outer portion
particularly
particularly adapted
permits
portion
preventive
product
products
ratio
reactors
reacts
reducing
sacrificial
steel
temperature
temperature transients
thickness
threshold
transients
tube
tube wall
tubing
wall