Actions for Experimental evaluation of thermal ratcheting behavior in UO2 fuel elements

Email RIS file
Bookmark
Report an Issue

Experimental evaluation of thermal ratcheting behavior in UO2 fuel elements

Author
Phillips, W. M.
Published
Jul 1, 1973.
Physical Description
1 electronic document
Online Version

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
The effects of thermal cycling of UO2 at high temperatures has been experimentally evaluated to determine the rates of distortion of UO2/clad fuel elements. Two capsules were rested in the 1500 C range, one with a 50 C thermal cycle, the other with a 100 C thermal cycle. It was observed that eight hours at the lower cycle temperature produced sufficient UO2 redistribution to cause clad distortion. The amount of distortion produced by the 100 C cycle was less than double that produced by the 50 C, indicating smaller thermal cycles would result in clad distortion. An incubation period was observed to occur before the onset of distortion with cycling similar to fuel swelling observed in-pile at these temperatures.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19730017945.
Accession ID: 73N26672.
JPL-TM-33-622.
NASA-CR-133236.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15748704