Effects of stoichiometry on cladding attack in mixed-oxide fuels to approx. 3. 6 at% burnup

Conference · Thu May 26 04:00:00 EDT 1977

OSTI ID:6769769

Hata, D. C.; Lawrence, L. A.; Weber, J. W.

Effects of initial stoichiometry on the character and extent of fuel-cladding chemical interaction (FCCI) were established for mixed-oxide fuels irradiated to peak burnups of approximately 3.6 at.%. The present LMFBR design basis considers an initial reduction of 50 microns (2 mils) in cladding thickness to compensate for possible FCCI. This thickness loss represents a significant part of the total cladding wastage allowance for the LMFBR reference fuels design. The reduction or elimination of FCCI would allow a corresponding reduction in cladding thickness resulting in an improvement in the breeding ratio and a reduction in system doubling time.

• Research Organization: Hanford Engineering Development Lab., Richland, Wash. (USA)
• DOE Contract Number: EY-76-C-14-2170
• OSTI ID: 6769769
• Report Number(s): HEDL-SA-1292-S; CONF-771109-99
• Country of Publication: United States
• Language: English

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