Processing of surrogate nuclear fuel pellets for better dimensional control with dry bag isostatic pressing
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
A study of improved methods of processing fuel pellets was undertaken using ceria and zirconia/yttria/alumina as surrogates. Through proper granulation and vertical vibration (tapping) of the parts bag prior to dry bag isostatic pressing (DBIP), reproducibility of diameter profiles among multiple pellets of ceria was improved by almost an order of magnitude. Reproducibility of sintered pellets was sufficiently good to possibly avoid grinding. Deviation from the mean diameter along the length of multiple pellets, as well as, deviation from roundness, decreased after sintering. This is not generally observed with dry pressed pellets. Thus it is possible to machine to tolerance before sintering if grinding is necessary.
- Research Organization:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE Office of Nuclear Energy (NE)
- Grant/Contract Number:
- AC07-05ID14517
- OSTI ID:
- 1367872
- Alternate ID(s):
- OSTI ID: 1396650
- Report Number(s):
- INL/JOU-15-37023; PII: S002231151630229X
- Journal Information:
- Journal of Nuclear Materials, Vol. 482, Issue C; ISSN 0022-3115
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Fabrication of oxide pellets containing lumped Gd 2 O 3 using Y 2 O 3 -stabilized ZrO 2 for burnable absorber fuel applications
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journal | February 2018 |
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